Runtime Sqldatasource Delete Command
Aug 12, 2006
i need to dyanamically generate my SQL commands so to do that i am generating sqldatasource commands programmatically rather declaratively. SELECT commands seems to work fine but DELETE isnt doing anything, here is my code:
SqlDataSource sdsConsultant = new SqlDataSource();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
loadDataSet(); //it just loads dataset used by formview
initializeSDS();
}
}
protected void initializeSDS()
{
string strConnection = ConfigurationManager.ConnectionStrings["myDB"].ToString();
sdsConsultant.ConnectionString = strConnection;
//SELECT
sdsConsultant.SelectCommand = "SELECT * FROM Consultants WHERE (id=@id)";
QueryStringParameter id = new QueryStringParameter("id", "id");
sdsConsultant.SelectParameters.Add(id);
//DELETE
sdsConsultant.DeleteCommand = "DELETE * FROM Consultants WHERE (id=@id2)";
QueryStringParameter id2 = new QueryStringParameter("id2", "id");
sdsConsultant.DeleteParameters.Add(id2);
//UPDATE
Page.Controls.Add(sdsConsultant);
FormView1.DataSource = sdsConsultant;
FormView1.DataBind();
}
my formview control looks like:
<asp:FormView DefaultMode="Edit" ID="FormView1" runat="server" DataKeyNames="id"
OnItemDeleted="FormView1_ItemDeleted"
OnItemDeleting="FormView1_ItemDeleting">
the DELETE doesnt execute and the OnItemDeleted event doesnt do anything either. am i doing something wrong here? plz help
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Mar 8, 2007
HiI'm using a simple SqlDataSource to connect to a stored proc to delete a number of rows from different tables.In my SQL im using: DECLARE @table1Count int
DELETE FROM Table1 WHERE id = @new_id
SET @table1Count=@@rowcount
SELECT @table1Count I'm then using an input box and linking it to the delete control parameter. Then on a button click event i'm running SqlDataSource1.Delete() which all works fine. But how do i get the @table1Count back into my aspx page? Thanks
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Dec 8, 2006
Hi!
My question is exactly the subject.
My Web Form has only a GridView and a DetailsView, there is no SqlDataSource at project time, i create the SqlDataSource at runtime using code like this in the Page_Load event: (I NEED IT TO BE CREATED DYNAMICALLY)1 Dim SQLDS As SqlDataSource = New SqlDataSource()
2
3 SQLDS.ID = "CustomerDataSource"
4 SQLDS.ConnectionString = ConfigurationManager.ConnectionStrings("connectionstring").ConnectionString
5 SQLDS.SelectCommand = "select customerid,companyname,contactname,country from customers"
6 SQLDS.InsertCommand = "insert into customers(customerid,companyname,contactname,country) values(@customerid,@companyname,@contactname,@country)"
7 SQLDS.UpdateCommand = "update customers set companyname=@companyname,contactname=@contactname,country=@country where customerid=@customerid"
8 SQLDS.DeleteCommand = "delete from customers where customerid=@customerid"
9
10 SQLDS.UpdateParameters.Add(New Parameter("companyname"))
11 SQLDS.UpdateParameters.Add(New Parameter("contactname"))
12 SQLDS.UpdateParameters.Add(New Parameter("country"))
13 SQLDS.UpdateParameters.Add(New Parameter("customerid"))
14
15 Page.Controls.Add(SQLDS)
16
17 If Not Page.IsPostBack Then
18 GridView1.DataKeyNames = New String() {"customerid"}
19 GridView1.DataSourceID = SQLDS.ID
20
21 ' ... and so on
The DetailsView1 uses the same SqlDataSource to show data, but i could not find a way to synchronize the DetailsView1 with the GridView1 when a record is selected in the GridView1.How can I synchronize the DetailsView?I played with the ControlParameter but i can't find either how to add a ControlParameter in code, is there a way? Every place talking about ControlParameter shows something like this: 1 <asp:SqlDataSource ID="SqlDataSource1" runat="server"
2 ConnectionString="<%$ ConnectionStrings:Pubs %>"
3 SelectCommand="SELECT [au_id], [au_lname], [au_fname], [state] FROM [authors] WHERE [state] = @state">
4 <SelectParameters>
5 <asp:ControlParameter Name="state" ControlID="DropDownList1" PropertyName="SelectedValue" />
6 </SelectParameters>
7 </asp:SqlDataSource>
8
Ok. OK. But my SqlDataSource is created dynamically. Any ideas on how to solve this problem?Thanks!
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Oct 31, 2007
In a web site the user has to choose one out of several sql tables to deal with.
He will then be allowed to view the selected table data through a GridView, to insert a new row into and to update a row in the selected table by means of an array of TextBoxes created dynamically on the base of the selected table.
I think it is possible to solve the problem fully by properly configuring at run time an SqlDataSource.
I have solved the issue of data display by declaring in the code behind within the OnPageLoad sub the following:
SqlDataSource1.SelectCommand = "Select * FROM " & selectedTable
While for the GridView1 I have added the selected table columns to the columns collection as follows:
for i=0 to ColumnCount-1 Dim cac As BoundField = New BoundField
cac.HeaderText = HeaderNamesArray(i)
cac.DataField = ProductNamesArray(i)Me.GridView1.Columns.Add(cac)
next
I have difficulty on how to do similar declarations for the insertcommand and update command.
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Nov 16, 2006
Is there any way to view the queries that a SqlDataSource executes against your chosen data source at runtime? i.e. after all the parameters have been substituted with their values.I'm assigning a number of parameters at runtime to its selectcommand, and i'm getting some exceptions thrown when attempting to update or delete records from a gridview using it (it's a really old Synergy database, which can be quite particular about the structure of queries). It would be a massive help if i could actually see the exact queries the datasource is attempting to use.Cheers for any help
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Mar 8, 2006
Hello
I'm experiencing some problems, binding a SqlDataSource to a GridView.
The following code creates the SqlDataSource: string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; string strProvider = ConfigurationManager.ConnectionStrings["ConnectionString"].ProviderName; SqlDataSource ds = new SqlDataSource(strProvider, strConn); ds.SelectCommand = "SELECT * FROM rammekategori";
Then i bind the SqlDataSource to a GridView:
GridView1.DataSource = ds; GridView1.DataBind();
ErrorMessage:
Format of the initialization string does not conform to specification starting at index 0.
Exception Details: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.Line 24: GridView1.DataBind();Am i totally off target here? Can it be something about, that you have to set the datasource of the gridview, before the Page_Load event?
Thanks - MartinHN
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Feb 22, 2008
I've got a page that uses an SqlDataSource to populate a simple DataList of inventory. It has been working just fine until yesterday. All of the sudden when I run the page from Visual Studio, it fails to connect to the database with an SqlException:
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
If I choose to configure the SqlDataSource in the designer, I select the stored procedure and on the last page of the wizard click the Test button and it brings back the results correctly. It turns out, all of the pages in this project are unable to connect at runtime. It's like there's a runtime firewall...
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Aug 10, 2007
I am using <asp:SqlDataSource ID and for the Select Command, the following, where the WHERE clause ... for an exact match (=) works correctly:
SelectCommand="SELECT [PatientID], [MedRecord] , [Accession], [FirstName], [LastName], [Address1] FROM [ClinicalPatient] WHERE (LastName = @LastName) ORDER BY [LastName]DESC">
I would like to do a "LIKE" search where the LastName Parameter is matched using "LIKE". In this situation how would the syntax be written.... I tried:
LastName LIKE '%" & LastName & "%'"
But I get an error???? Any suggestions, please...
Thanks !!
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Oct 12, 2007
Hello all,
I am having problem to insert the record into database from sqldatasource control. my code is listed below, and i can't find anything why it cause the exception...
<asp:SqlDataSource ID="SqlDataSource1" runat="server" DataSourceMode="DataSet" ConnectionString="<%$ ConnectionStrings:WebsiteDataConnection %>" SelectCommand="SELECT * FROM [ServiceAgents]" InsertCommand="INSERT INTO ServiceAgents VALUES(@Ser_STATE, @Ser_CITY, @Ser_AGENT, @Ser_PHONE, @Ser_EQUIPMENT)"> <InsertParameters> <asp:FormParameter Name="Ser_STATE" FormField="TextBox_state"/> <asp:FormParameter Name="Ser_CITY" FormField="TextBox_city"/> <asp:FormParameter Name="Ser_AGENT" FormField="TextBox_agent"/> <asp:FormParameter Name="Ser_PHONE" FormField="TextBox_phone"/> <asp:FormParameter Name="Ser_EQUIPMENT" FormField="TextBox_equip" /> </InsertParameters> </asp:SqlDataSource>
The table has got the fields that needed for insert command, for example:
<table> <tr> <td>State:</td> <td> <asp:TextBox ID="TextBox_state" runat="server"></asp:TextBox> <asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ControlToValidate="TextBox_state" Display="Static" ErrorMessage="Please enter a state." /> </td> </tr> <tr> <td>City:</td> <td> <asp:TextBox ID="TextBox_city" runat="server"></asp:TextBox> <asp:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ControlToValidate="TextBox_city" Display="Static" ErrorMessage="Please enter a city." /> </td> </tr> <tr> <td>Agent:</td> <td> <asp:TextBox ID="TextBox_agent" runat="server"></asp:TextBox> <asp:RequiredFieldValidator id="RequiredFieldValidator3" runat="server" ControlToValidate="TextBox_agent" Display="Static" ErrorMessage="Please enter a agent." /> </td> </tr> <tr> <td>Phone:</td> <td> <asp:TextBox ID="TextBox_phone" runat="server"></asp:TextBox> <asp:RequiredFieldValidator id="RequiredFieldValidator4" runat="server" ControlToValidate="TextBox_phone" Display="Static" ErrorMessage="Please enter a phone No." /> </td> </tr> <tr> <td>Equipment:</td> <td> <asp:TextBox ID="TextBox_equip" runat="server"></asp:TextBox> <asp:RequiredFieldValidator id="RequiredFieldValidator5" runat="server" ControlToValidate="TextBox_equip" Display="Static" ErrorMessage="Please enter a equipment." /> </td> </tr> <tr> <td></td> <td> <asp:Button ID="Button2" runat="server" Text="Add" OnClick="addEntry" BackColor="#FFFBFF" BorderColor="#CCCCCC" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana" Font-Size="1.0em" ForeColor="#284775"/> </td> </tr> </table>
And in the code i just called: SqlDataSource1.Insert(); Then the page gives me the exception like:
Cannot insert the value NULL into column 'STATE', table 'WebsiteData.dbo.ServiceAgents'; column does not allow nulls. INSERT fails. The statement has been terminated.
But i actually input all the required text in the textbox.... Any idea guys?
Thanks
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Nov 15, 2007
I have a SqlDataSource object that is bound to a GridView control. I have configured the SqlDataSource with a default select command. Under certain values of query strings on the URL for this page (Default.aspx), I want to change the select command. So I put the statements in the Page_Load method for Default.aspx to define SqlDataSource1.SelectCommand. The changed SelectCommand works fine for the first page of GridView data and shows 5 GridView pages, but if I switch to one of the other pages, it seems to revert to the default SelectCommand (which generates 19 GridView pages). I assume I should put my code to change the SelectCommand somewhere else. Can someone help me with where to put it? Thanks!
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Nov 20, 2007
I get the following error, when I try to create a company. Any help would be appreciated. Error Code: Cannot insert the value NULL into column 'CompanyName', table 'Telemetry.dbo.Company'; column does not allow nulls. INSERT fails.The statement has been terminated. Here is my aspx file: <table> <tr ><td style="width:110px"><b>Company Name:</b></td><td ><asp:TextBox ID="CompanyName" Text="" runat="server" width="250px"/></td></tr> <tr><td ><b>Phone Number:</b></td><td ><asp:TextBox runat="server" ID="CompanyPhone" Text="" Width="250px"/></td></tr> <tr><td ><b>Company E-mail:</b></td><td ><asp:TextBox runat="server" ID="CompanyEmail" Text="" Width="250px"/></td></tr> <tr><td ><b>Street Address:</b></td><td><asp:TextBox runat="server" ID="AddressStreet" Text="" Width="250px"/></td></tr> <tr><td ><b>City :</b></td><td><asp:TextBox runat="server" ID="AddressCity" Text="" Width="200px"/></td></tr> <tr><td ><b>State/Province:</b></td><td><asp:TextBox runat="server" ID="AddressState" Text="" Width="150px"/></td></tr> <tr><td ><b>Zip Code:</b></td><td><asp:TextBox runat="server" ID="AddressZip" Text="" Width="150px"/></td></tr> <tr></tr> </table> <asp:Button ID="Submit" runat="server" OnClick="Submitinfo" /> <br /> <asp:SqlDataSource ID="sqlCreateCompany" runat="server" ConnectionString="<%$ ConnectionStrings:SqlServer1 %>" InsertCommand="INSERT INTO Company(CompanyName, CompanyPhone, CompanyEmail, AddressStreet, AddressCity, AddressState, AddressZip) VALUES (@CompanyName, @CompanyPhone, @CompanyEmail, @AddressStreet, @AddressCity, @AddressState, @AddressZip)" SelectCommand="SELECT [CompanyID], [CompanyName], [CompanyPhone], [CompanyEmail], [AddressStreet], [AddressZip], [AddressState], [AddressCity] FROM [Company]" > <InsertParameters> <asp:FormParameter Name="CompanyName" FormField="CompanyName"/> <asp:FormParameter Name="CompanyPhone" FormField="companyPhone" /> <asp:FormParameter Name="CompanyEmail" FormField="CompanyEmail" /> <asp:FormParameter Name="AddressStreet" FormField="AddressStreet" /> <asp:FormParameter Name="AddressCity" FormField="AddressCity" /> <asp:FormParameter Name="AddressState" FormField="AddressState" /> <asp:FormParameter Name="AddressZip" FormField="AddressZip" /> </InsertParameters> </asp:SqlDataSource> .....Behind the code.............. protected void Submitinfo(object sender, EventArgs e) { //TextBox t = (TextBox)FormView1.FindControl("CompanyName"); sqlCreateCompany.Insert(); } .........Database Company Table Design..............CompanyID int UncheckedCompanyName varchar(100) UncheckedCompanyPhone varchar(50) CheckedCompanyEmail varchar(100) CheckedAddressStreet varchar(100) CheckedAddressCity varchar(50) CheckedAddressState varchar(2) CheckedAddressZip varchar(5) CheckedCompanyLogo varchar(100) Checked
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Aug 4, 2006
hi i have an sqldatasource which has an insert command - a stored procedue is used.I have a text box with a button next to it . it is not in a datagrid.on the onclick event I would like to pass the value of the text box to the sqldatasource insert parameter ( it only expects this one parameter , and use the sqldatasource to do the insert basically doing a manual insert using the sqldatasource.does anyone know if this is possible thanks
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Apr 24, 2007
hello everybody, i have a question to ask, suppose i have a sqldatasource, can i use it in a method??this is my case, i need to make a new method to count the rows in a datagrid, so i will have to read the sqldatasource. the problem is, how to retrieve it?? usually i use the built in sqldatasource_selected to count the rows.... is there any other way??
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May 26, 2007
My compiler says that the line in bold below is illegal. The error msg I'm getting is: No overload for method 'select' takes '0' arguments. How can I correct this error and execute a SELECT?
protected void Button1_Click(object sender, EventArgs e)
{
SqlDataSource2.Select ();
}
protected void SqlDataSource2_Selected(object sender, SqlDataSourceStatusEventArgs e)
{string strReadyFirstName = e.Command.Parameters["@FirstName"].Value.ToString();string strReadyLastName = e.Command.Parameters["@LastName"].Value.ToString();
}
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [User_ID], [User_Name], [FirstName], [LastName], [Company_Name], [Department_Name] FROM [CompanyDepartment] WHERE ([User_Name] = @User_Name)" OnSelected="SqlDataSource2_Selected">
<selectparameters>
<asp:sessionparameter DefaultValue="TheirUserName" Name="User_Name" SessionField="TheirUserName" Type="String" />
</selectparameters>
</asp:SqlDataSource>
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Jul 20, 2007
I have a GridView (that uses SqlDataSource1) and a Dropdownlist. Depending upon the value selected on the DropDownList I need to select different stored procedures for the gridview. The problem is that I can do it without taking SqlDataSource1 by using DataSet or DataTable. But, I need to Use SQLDataSource1 for easy way of Header SORTING. So, is there any way to change the SQLDatasource1.SELECT Command dynamically. So that, I can use different queries for the Single DataGrid. I have attached the sample code of the SqlDataSource1 I'm using. I need to change the Command i.e. SelectCommand="usp_reports_shortages" to "usp_reports_shortagesbyID" and "usp_reports_shortagesbyDate" depending on the value selected in the dropdownlist. So, is there any way to do this????<asp:SqlDataSource ID="SqlDataSource1"
runat="server"
ConnectionString="<%$
ConnectionStrings:TESTDrivercommunication %>"
SelectCommand="usp_reports_shortages" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:ControlParameter ControlID="lblDriver" Name="date1" PropertyName="Text" Type="DateTime" />
<asp:ControlParameter ControlID="lblTODate" Name="date2" PropertyName="Text" Type="DateTime" />
<asp:ControlParameter ControlID="DDlDriver" Name="driver" PropertyName="SelectedValue"
Type="Int32" />
<asp:SessionParameter Name="week" SessionField="s_week" Type="DateTime" />
</SelectParameters>
</asp:SqlDataSource>
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Dec 26, 2007
I have an SQLDataSource. The SQL is
SELECT UserName, Category, ItemDescription, Size, Price, Reduce, Donate, Sold, ItemNumber, SoldDate, SoldPrice, PrintedFROM Tags WHERE (Printed = @Printed1 OR Printed = @Printed2 OR Printed = @Printed3) ORDER BY ItemNumber DESCThe bit field "printed" can be NULL, True or False.In the Selecting event of the SQLDataSource I have the following to show ALL records. But it does not work. If I remove these parameters it show ALL records.
e.Command.Parameters("@Printed1").Value = Nothing 'ASP.NET 2.0 using Visual basice.Command.Parameters("@Printed2").Value = Truee.Command.Parameters("@Printed3").Value = False
What am I doing wrong???
Thanks
Craig
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Jan 11, 2008
I apologise if i have not posted this in the correct Topic before i start. But was uncertain where to post this query.
This is my first project in ASP.NET, MS Visual Web Developer 2005 Express and SQL Server 2005 Express. I have relatively little experience, so please bare with me.
I have managed to create a form that inserts data into a table and then inserts the Automatically Created Primary Key(as a foreign key) in another table. I have done this by inserting what is highlighted in red in the code of my InsertCommand below (Please scroll across to the end of the code):-InsertCommand="INSERT INTO [PrinterModel] ([Model], [PrinterMakeID], [CartridgeCode], [PartCode], [Duplex], [NIC], [Wireless], [Parallel], [USB], [Colour], [PrinterTypeID]) VALUES (@Model, @PrinterMakeID, @CartridgeCode, @PartCode, @Duplex, @NIC, @Wireless, @Parallel, @USB, @Colour, @PrinterTypeID) INSERT INTO [Model] ([PrinterModelID],[TypeID]) VALUES (@@IDENTITY, 3)" Can you see any problems that may arise from using this method. This project is an Asset Management System and will be used by no more than a handful of users. My Concern is the use of the @@IDENTITY (As it only stores the last Key used). Should I be using it here? If there is more than one user inserting into tables (Chances of this happening are very low), will the correct Primary key be insert to the table in the above code?Thank you for your comments.
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Apr 25, 2008
I am trying to implement an "advanced search" feature on my ASP.NET 2.0 web form. I have a GridView control and a SqlDataSource. The SqlDataSource control successfully retrieves data when the SelectCommand attribute is set in the aspx page. I need to make it so when a user clicks on a button, it can take a value from a text box and use it in the WHERE clause. I have tried setting the SelectCommand programmatically and then DataBinding but it never accepts the new SelectCommand. What can I do to fix this?
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Jun 13, 2006
Hi - I'm using .net2, and have a gridview, populated by a SQL Datasource (Edit, Insert, Delete, Select).
Like we all used to do with the datagrid, I've added text boxes into the footer, and a link button, which I'd like to use to fire the Update command.
How do I get the link button to trigger the update command?
Thanks, Mark
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Jan 19, 2007
I have a sqldatasource that I have just inserted some rows into via the:
sqldatasource.insertparameters("devicename").defaultvalue = "SERVERNAME"
sqldatasource.insert()
I now want to via a list of machines, delete certain ones from the sqldatasource above. I tried the following but it is failing.. any thoughts as to why?
sqldatasource.selectparameters=("devicename").defaultvalue = "SERVERNAME"
sqldatasource.select(datasourceselectarguments.empty)
sqldatasource.deleteparameters("devicename").defaultvalue = "SERVERNAME"
sqldatasource.delete()
I may be going about this totally wrong, I'm a bit new to this... I just want to select the row from the table that = "SERVERNAME" and then delete it. I have enabled inserts/updates/deletes in my datasource...
thanks
Stan
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Sep 1, 2006
I would like to introduce myself as ASP.Net 2.0 beginner. I face a problem when using gridview and sqldatasource.
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Feb 23, 2008
Hello all,I'm writing a site with one page that uses the session variable (User ID) to pick one user ID out of a comma separated list in the field Faculty. The default parameterized query designed in the SqlDataSource wizard only returns lines that contain an exact match:SELECT * FROM tStudents WHERE ([faculty] = @faculty) The query: SELECT * FROM tStudents WHERE ([faculty] LIKE '%userID%') works as I need when I hard code the query with a specific user ID into the SqlDataSource in the aspx page. It will not work if I leave the @faculty parameter in it:SELECT * FROM tStudents WHERE ([faculty] LIKE '%@faculty%') e.Command.Parameters works to replace the @Faculty with a user ID, but again, adding the single quote and percentage sign either causes errors or returns no results. I've tried several variations of: string strEraiderID = "'%" + Session["eRaiderID"].ToString() + "%'"; e.Command.Parameters["@faculty"].Value = strEraiderID;no results are returned, not even the lines returned with the default select query.How do generate the equivalent of SELECT * FROM tStudents WHERE ([faculty] LIKE '%userID%') into the SqlDataSource? Thanks much!
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Apr 14, 2008
Is there any way I can use a variable from my code behind file in the UpdateCommand of a sqlDataSource? I have tried
<%$ strUserGuid %>and<% strUserGuid %>
any help appreciated.Thanks
Dave
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May 5, 2006
I have a gridview with a sqlDataSource with the SelectCommand as
"SELECT Movie.Title, Movie.Category, Movie.ReleaseDate, ItemForSale.Quantity, ItemForSale.HasUnLimitedQuantity FROM ItemForSale INNER JOIN Movie ON ItemForSale.ID = Movie.ID"
what kinda 'UpdateCommand' do I set so that ItemForSale is also updated from the grid? I tried two update statements seperated with a semicolon but that wouldn't work, any suggestions...
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Aug 31, 2007
Hello all,
Ok, I finally got my SqlDataSource working with Oracle once I found out what Oracle was looking for. My next hurdle is to try and set the Update Command and Parameters dynamically from a variable or radiobutton list. What I'm trying to accomplish is creating a hardware database for our computers by querying WMI and sending the info to textboxes for insertion and updating. I got that part all working nicely. Now I want to send the Computer name info to a different table column depending on if it is a laptop or desktop. I have been tossing around 2 ideas. A radiobutton list to select what it is and change the SQL parameters or do it by computer name since we have a unique identifier as the first letter ("W" for workstation, "L" for Laptop). I'm not sure what would be easiest but I'm still stuck on how this can be done. I posted this same question in here a few days ago, but I didn't have my SqlDataSources setup like I do now, I was using Dreamweaver 8, it is now ported to VS 2005. Below is my code, in bold is what I think needs to be changed dynamically, basically i need to change DESKTOP to LAPTOP...Thanks for all the help I've gotten from this forum already, I'm very new to ASP.NET and I couldn't do this without all the help. Thanks again!
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:CAT %>"ProviderName="<%$ ConnectionStrings:CAT.ProviderName %>" SelectCommand='SELECT * FROM "COMPUTER"' UpdateCommand="UPDATE COMPUTER SET DESKTOP = :DESKTOP, TECH = :TECH, SERVICE_TAG = :SERVICE_TAG WHERE USERNAME=:USERNAME">
<UpdateParameters>
<asp:ControlParameter Name="USERNAME" ControlId="txtUserName" PropertyName="Text"/>
<asp:ControlParameter Name="SERVICE_TAG" ControlId="txtServiceTag" PropertyName="Text"/>
<asp:ControlParameter Name="TECH" ControlId="txtTech" PropertyName="Text"/>
<asp:ControlParameter Name="DESKTOP" ControlId="txtComputerName" PropertyName="Text"/>
</UpdateParameters>
</asp:SqlDataSource>
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Oct 2, 2007
Hi,
Hope you guys won't mind this rather newbie question. I'm writing a simple blog page for my website and have created a SqlDataSource which queries the database for a list of blog post titles (from the web.Blog table) and the number of comments (from the web.BlogComments table). The SqlDataSource control is:
<asp:SqlDataSource ID="sourceBlogArticles" ProviderName="System.Data.SqlClient" connectionString="<%$ ConnectionStrings:myDatabase %>" runat="server" SelectCommand="SELECT gb.blogID, gb.title, gb.description, gb.tags, gb.dateAdded, COUNT(gbc.blogID) AS noOfComments FROM web.Blog gb LEFT OUTER JOIN web.BlogComments gbc ON gb.blogID = gbc.blogID GROUP BY gb.blogID, gb.title, gb.description, gb.tags, gb.dateAdded ORDER BY gb.dateAdded"></asp:SqlDataSource>
This works perfectly well if each blog entry in the web.Blog table has associated comments in the web.BlogComments table. However, if there are no comments yet defined in the web.BlogComments table for that blogID then no row is returned in ASP.Net (as checked with a GridView control or similar linked to the data source to view what I get)
HOWEVER, I think the SELECT command IS correct: if I use the select command as a query in SQL Server Managment Studio Express, I do get the rows returned, with 0 for the number of comments which is what I would expect for that query:
blogID, title, description, tags, dateAdded, noOfComments
1, title 1, description for title 1, tag1, 2007-09-27 06:49:03.810, 32, title 2, description for title 2, tag2, 2007-09-27 06:49:37.513, 03, title 3, description for title3, tag3, 2007-10-02 18:21:30.467, 0
Can anyone help? The result from the SSMSE query is what I want, yet when I use the very same SELECT statement in my SqlDataSource I don't get any rows returned if the BlogComment count is zero (in the above example I get only the first row). Many thanks for any suggestions!
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Aug 3, 2006
I'm referring to this bug, which I've seen a lot of people (including me) run into:
http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=93937
Has anyone heard if MS plans to fix this soon?
Thanks
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May 2, 2008
Hi guys! I have a simple windows form where a gridview is being populated by a database. I have checked the ability to update, insert delete. And everything is fine but when i want to delete a row it throws an exeption. The exeptions says: "Must declare the scalar variable "@id"."I haven't changed the delete, update and insert commands. They are as fallowsDeleteCommand="DELETE FROM [recepti] WHERE [id] = @id"InsertCommand="INSERT INTO [recepti] ([ime], [recepta], [snimka], [snimka2], [tip]) VALUES (@ime, @recepta, @snimka, @snimka2, @tip)" SelectCommand="SELECT * FROM [recepti]"UpdateCommand="UPDATE [recepti] SET [ime] = @ime, [recepta] = @recepta, [snimka] = @snimka, [snimka2] = @snimka2, [tip] = @tip WHERE [id] = @id" The id column is auto generated, unique, also it's a primery key.So any idea where is the problem?
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Jan 3, 2006
Hello Guys,
I’m trying to create a sqlDataSource using the wizard, I can get the select statement, the here clause and the order by clause but when I click on the Advanced button the options to generate the insert, update and delete statements are not available. Does anyone know what am I doing wrong?
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Mar 16, 2008
What's the best way to debug the SQL commands with parameters? My Formview performs the INSERT and EDIT commands fine -- and I can see the results in the tables. However, my Delete command crashes -- see the error below.
I assume that the problem is a formatting issue with an input parameter -- i see there are equality tests for the parameters before the delete is allowed --
How Can I look at these parameters to inspect them? All the types on the paranmeters look fine to me!!
---Jim
Server Error in '/GVOps4' Application.
Input string was not in a correct format.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.FormatException: Input string was not in a correct format.Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[FormatException: Input string was not in a correct format.]
System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +2755599
System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +112
System.String.System.IConvertible.ToInt32(IFormatProvider provider) +43
System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) +293
System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) +264
System.Web.UI.WebControls.SqlDataSourceView.AddParameters(DbCommand command, ParameterCollection reference, IDictionary parameters, IDictionary exclusionList, String oldValuesParameterFormatString) +557
System.Web.UI.WebControls.SqlDataSourceView.ExecuteDelete(IDictionary keys, IDictionary oldValues) +615
System.Web.UI.DataSourceView.Delete(IDictionary keys, IDictionary oldValues, DataSourceViewOperationCallback callback) +75
System.Web.UI.WebControls.FormView.HandleDelete(String commandArg) +832
System.Web.UI.WebControls.FormView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +535
System.Web.UI.WebControls.FormView.OnBubbleEvent(Object source, EventArgs e) +95
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
System.Web.UI.WebControls.FormViewRow.OnBubbleEvent(Object source, EventArgs e) +109
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +115
System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +132
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +177
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746
<asp:SqlDataSource ID="PilotReportDetail" runat="server"
ConflictDetection="CompareAllValues" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
DeleteCommand="DELETE FROM [FlightReport] WHERE [FlightReportID] = @original_FlightReportID AND [DateTimeEntered] = @original_DateTimeEntered AND [DateTimeFlown] = @original_DateTimeFlown AND [PilotID] = @original_PilotID AND [AircraftID] = @original_AircraftID AND [CameraPodID] = @original_CameraPodID AND [OrderID] = @original_OrderID AND [FlightHours] = @original_FlightHours AND [FlightSegments] = @original_FlightSegments AND [ReflyReason] = @original_ReflyReason" InsertCommand="INSERT INTO [FlightReport] ([DateTimeEntered], [DateTimeFlown], [PilotID], [AircraftID], [CameraPodID], [OrderID], [FlightHours], [FlightSegments], [ReflyReason]) VALUES (@DateTimeEntered, @DateTimeFlown, @PilotID, @AircraftID, @CameraPodID, @OrderID, @FlightHours, @FlightSegments, @ReflyReason)"
OldValuesParameterFormatString="original_{0}" SelectCommand="SELECT * FROM [FlightReport] WHERE ([FlightReportID] = @FlightReportID)"
UpdateCommand="UPDATE [FlightReport] SET [DateTimeEntered] = @DateTimeEntered, [DateTimeFlown] = @DateTimeFlown, [PilotID] = @PilotID, [AircraftID] = @AircraftID, [CameraPodID] = @CameraPodID, [OrderID] = @OrderID, [FlightHours] = @FlightHours, [FlightSegments] = @FlightSegments, [ReflyReason] = @ReflyReason WHERE [FlightReportID] = @original_FlightReportID AND [DateTimeEntered] = @original_DateTimeEntered AND [DateTimeFlown] = @original_DateTimeFlown AND [PilotID] = @original_PilotID AND [AircraftID] = @original_AircraftID AND [CameraPodID] = @original_CameraPodID AND [OrderID] = @original_OrderID AND [FlightHours] = @original_FlightHours AND [FlightSegments] = @original_FlightSegments AND [ReflyReason] = @original_ReflyReason">
<SelectParameters><asp:ControlParameter ControlID="GridView1" Name="FlightReportID"
PropertyName="SelectedValue" Type="Int32" />
</SelectParameters>
<DeleteParameters>
<asp:Parameter Name="original_FlightReportID" Type="Int32" />
<asp:Parameter Name="original_DateTimeEntered" Type="DateTime" />
<asp:Parameter Name="original_DateTimeFlown" Type="DateTime" />
<asp:Parameter Name="original_PilotID" Type="Int32" />
<asp:Parameter Name="original_AircraftID" Type="Int32" />
<asp:Parameter Name="original_CameraPodID" Type="Int32" />
<asp:Parameter Name="original_OrderID" Type="Int32" />
<asp:Parameter Name="original_FlightHours" Type="Double" />
<asp:Parameter Name="original_FlightSegments" Type="Int32" />
<asp:Parameter Name="original_ReflyReason" Type="Int32" />
</DeleteParameters>
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Dec 27, 2000
Why cannot I use alias in delete command when I join two table.
My query is as follows.
delete from ikw_indexed_form_approved where exists(select * from ikw_router
where ikw_indexed_form_approved.ikw_subscription_id=ikw_ subscription_id
and ikw_indexed_form_approved.ikw_indexed_name='centra al corp'
and ikw_indexed_form_approved.content_code='html'
and ikw_indexed_form_approved.ikw_subscription_id=1)
if I use like this it gives me an error
delete from ikw_indexed_form_approved A where exists(select * from ikw_router
where A.ikw_subscription_id=ikw_subscription_id
and A.ikw_indexed_name='centraal corp'
and A.content_code='html'
and A.ikw_subscription_id=1)
Your help will be appreciated.
Thanks in advance
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Nov 10, 1999
Hi
I am using SQL 6.5. I have a master table which is referenced by more than 35 tables. When I try to
delete a record from the table, i am getting this message
Msg 431, Level 16, State 0
Unable to bind foreign key constraint. Too many tables involved in query.
SQL 6.5 maximum 31 foreign key references. I was wondering is there any way to delete those
records. (i don't want to drop the foreign constraints)
SQL 7.0 supports maximum 63 foreign key references.
Thanks in advance
Moorthy.
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Jul 4, 2006
i have default.aspx file and i put SqlDataSource into my designer form.when i want to configure SqlDataSource it not allowed my to insert, update and delete only insert is allowed.what is the problem and the solution for this case ...thx
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