Updating Database In Cs File - Using Sqldatsource And Formview
Feb 8, 2007
Hi
I am new to asp.net world. I have a page with two formviews bound to two sqldatsources. One datasource connects to sql database and other to access. The information from both the databases is quite similar. The default mode for formview1 is edittemplate and for formview2 it is itemtemplate. I want to give the user an option to update formview1 data based on information retrevied in formview2 on a click of a button.
I want to do this in code behind .cs file. I am not sure how can I access the values from formview templates e.g formview1.itemtemplate... etc?
I've been playing around with the new data controls (DetailsView,FormView) and have been having problems when attempting to update a record that has a uniqueidentifier as its primary key.I get the error message: Object must implement IConvertible. 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.InvalidCastException: Object must implement IConvertible.I gather this is because there is a bug that has propagated from the beta version.One suggested work around is from http://64.233.183.104/search?q=cache:GDjA62POtgcJ:scottonwriting.net/sowBlog/archive/11162005.aspx+Implicit+conversion+from+data+type+sql_variant+to+uniqueidentifier+is+not+allowed.+Use+the+CONVERT+function+to+run+this+query.&hl=en The crux of the problem, it appears, is that the <asp:Parameter> value for the uniqueidentifier field is, by default, set to Type=�Object�. To fix this, simply remove the Type property altogether. That is, change the SqlDataSource parameter setting from something like: <asp:SqlDataSource ...> <InsertParameters> <asp:Parameter Name=�UserId� Type=�Object� /> ... </InsertParameters></asp:SqlDataSource> to: <asp:SqlDataSource ...> <InsertParameters> <asp:Parameter Name=�UserId� /> ... </InsertParameters></asp:SqlDataSource> This change worked for me; once the Type was removed the exception ceased and the updates/inserts worked as expected.Unfortunately this only partially worked for me as while it is fine for deletes it won't work for updates.If anyone can help shed any light on this I would greatly appreciate it.CheersMark
Guys, here is my scenario: I have 3 tables 1) Vendor 2) Service 3) Service Product Each vendor has the ability to have any number of services, all with any number of service products. How should I setup my page so I can edit/insert vendors, and tie a list of service products and services to them? My plan was to have a Formview with either a checkboxlist, or multilist (to select multiple items - but they don't work that way) and then store selected items in another table (each item selected with its own record) to hold onto the vendor id and tie it to a service id and a product id, but I was unsure how to do this. Any help would be greatly appreciated. FYI I am writing in VB.
I am trying to return the ID of the last record entered into my database so the user will have his Record ID. I'm trying to do this in a from view. text='<%#eval("ID")%>' SelectCommand="SELECT MAX(ID) FROM [Webenhancetest]"> If it is done in this manner, it says DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'MAX'. and if I just use SELECT IDFROM [Webenhancetest it works but only returns the first record which is 1.
I have a form view that I am using to insert new data into a sql express database and would like to find a way to avoid attempting to insert a record if the key already exists. is there a way to do this with the formview insert command. Everything works great until I try to add a record with an already existing value in the unique key field, then it breaks.
We've got an employee database that I'm modifying to include two photos of each employee, a small thumbnail image and a full-size image. The HR department maintenance page contains a listbox of employee names, which, when clicked, populates a detailsview control.To get the images to display and be updatable, I've had to structure the following SqlDatasource and DetailsView: 1 <asp:DetailsView ID="dvEmp" runat="server"2 AutoGenerateRows="false"3 DataSourceID="dsEmpView"4 DataKeyNames="empID">5 <Fields>6 <asp:CommandField ShowEditButton="true" ShowCancelButton="true" ShowInsertButton="true" />7 <asp:BoundField HeaderText="Name (Last, First)" DataField="empname" />8 <asp:TemplateField HeaderText="Thumbnail photo">9 <ItemTemplate>10 <asp:Image ID="imgThumbnail" runat="server" ImageUrl='<%# formatThumbURL(DataBinder.Eval(Container.DataItem,"empID")) %>' />11 </ItemTemplate>12 <EditItemTemplate>13 <asp:Image ID="imgThumbHidden" runat="server" ImageUrl='<%# Bind("thumbURL") %>' Visible="false" />14 <asp:FileUpload ID="upldThumbnail" runat="server" />15 </EditItemTemplate>16 </asp:TemplateField>17 <asp:TemplateField HeaderText="Full Photo">18 <ItemTemplate>19 <asp:Image ID="imgPhoto" runat="server" ImageUrl='<%# formatImageURL(DataBinder.Eval(Container.DataItem,"empID")) %>' />20 </ItemTemplate>21 <EditItemTemplate>22 <asp:Image ID="imgPhotoHidden" runat="server" ImageUrl='<%# Bind("photoURL") %>' Visible="false" />23 <asp:FileUpload ID="upldPhoto" runat="server" />24 </EditItemTemplate>25 </asp:TemplateField>26 </Fields>27 </asp:DetailsView>28 29 <asp:SqlDataSource ID="dsEmpView"30 runat="server"31 ConnectionString="<%$ ConnectionStrings:eSignInConnectionString %>"32 OnInserting="dsEmpView_Inserting"33 OnUpdating="dsEmpView_Updating"34 SelectCommand="SELECT empID, empname, photoURL, thumbURL FROM employees where (empID = @empID)"35 InsertCommand="INSERT INTO employees (empname, photoURL, thumbURL) values(@empname, @photoURL, @thumbURL)"36 UpdateCommand="UPDATE employees SET empname=@empname, photoURL=@photoURL, thumbURL=@thumbURL WHERE (empID = @empID)">37 <SelectParameters>38 <asp:ControlParameter ControlID="lbxEmps" Name="empID" PropertyName="SelectedValue" Type="Int16" />39 </SelectParameters>40 </asp:SqlDataSource>41 42 -----43 44 Protected Sub dsEmpView_Updating(ByVal sender As Object, ByVal e As SqlDataSourceCommandEventArgs)45 Dim bAbort As Boolean = False46 Dim bThumb(), bPhoto() As Byte47 If e.Command.Parameters("@ename").Value.trim = "" Then bAbort = True48 Dim imgT As FileUpload = CType(dvEmp.FindControl("upldThumbnail"), FileUpload)49 If imgT.HasFile Then50 Using reader As BinaryReader = New BinaryReader(imgT.PostedFile.InputStream)51 bThumb = reader.ReadBytes(imgT.PostedFile.ContentLength)52 e.Command.Parameters("@thumbURL").Value = bThumb53 End Using54 End If55 Dim imgP As FileUpload = CType(dvEmp.FindControl("upldPhoto"), FileUpload)56 If imgP.HasFile Then57 Using reader As BinaryReader = New BinaryReader(imgP.PostedFile.InputStream)58 bPhoto = reader.ReadBytes(imgP.PostedFile.ContentLength)59 e.Command.Parameters("@photoURL").Value = bPhoto60 End Using61 End If62 e.Cancel = bAbort63 End SubIf the user updates both images at the same time by populating their respective FileUpload boxes, everything works as advertized. But if the user only updates one image (or neither image), things break. If they upload, say, just the full-size photo during an update, then it gives the error "System.Data.SqlClient.SqlException: Operand type clash: nvarchar is incompatible with image".I think this error occurs because the update command is trying to set the parameter "thumbURL" without having any actual data to set. But since I really don't want this image updated with nothing, thereby erasingthe photo already in the database, I'd rather remove this parameter from the update string.So, let's remove the parameter that updates that image by adding the following code just after the "End Using" lines: Else Dim p As SqlClient.SqlParameter = New SqlClient.SqlParameter("@thumbURL", SqlDbType.Image) e.Command.Parameters.Remove(p) (Similar code goes into the code block that handles the photo upload)Running the same update without an image in the thumb fileupload box, I now get this error: "System.ArgumentException: Attempted to remove an SqlParameter that is not contained by this SqlParameterCollection."Huh? It's not there? Okay, so lets work it from the other end: let's remove all references to the thumbURL and photoURL from the dsEmpView datasource. We'll make its UpdateCommand = "UPDATE employees SET empname=@empname WHERE (empID = @empID)", and put code in the dsEmpView_Updating sub that adds the correct parameter to the update command, but only if the fileupload box has something in it. Therefore: If imgT.HasFile Then Using reader As BinaryReader = New BinaryReader(imgT.PostedFile.InputStream) bThumb = reader.ReadBytes(imgT.PostedFile.ContentLength) e.Command.Parameters.Add(New SqlClient.SqlParameter("@thumbURL", SqlDbType.Image, imgT.PostedFile.ContentLength)) e.Command.Parameters("@thumbURL").Value = bThumb End Using End If (Similar code goes into the code block that handles the photo upload)But reversing the angle of attack only reverses the error. Uploading only the photo and not the thumb image results in: "System.Data.SqlClient.SqlException: The variable name '@photoURL' has already been declared. Variable names must be unique within a query batch or stored procedure."So now it's telling me the parameter IS there, even though I just removed it.ARRRGH!What am I doing wrong, and more importantly, how can I fix it?Thanks in advance.
I have a simple gridview that loads on page load. It uses an on page sqldatasource declaration in which there's a parameter in which value is already available in cookies. I added an asp:HiddenField and set that value on PageLoad() to the value of the cookies. I then set a FormParameter in the sqldatasource mapped to that hidden field. However that appears to have no effect at all. I'm guessing the sqldatasource will only use the form field after postback.
I can think of ways to resolve this issue, but I am wondering if there is a standard practice or some setting that is used to ensure that text containing a single quote, such as "Bob's house", is passed correctly to the database when using a SqlDataSource with all of the default behavior. For example, I have a FormView setup with some text fields and a SqlDataSource that is used to do the insert. There is no code in the form currently. It works fine unless I put in text with a single quote, which of course messes up the insert or update. What is the best way to deal with this? Thank you
Greetings, I have just arrived back into the country (NZ) and back into ASP.NET. I am having trouble with the following:An attempt to attach an auto-named database for file (file location).../Database.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share. It has only begun since i decided i wanted to use IIS, I realise VWD comes with its own localhost, but since it is only temporary, i wanted a permanent shortcut on my desktop to link to my intranet page. Anyone have any ideas why i am getting the above error? have searched many places on the internet and not getting any closer. Cheers ~ J
yes,I have an error, like 'The database file may be corrupted. Run the repair utility to check the database file. [ Database name = SDMMC Storage Cardwinpos_2005WINPOS2005.sdf ]' .I develope a program for Pocket Pcs and this program's database sometimes corrupt.what can i do?please help me
Hi, I m trying to update a table using an Excel file using the following code: [sql] UPDATE cargo SET cargo.slot = (SELECT two FROM OpenDataSource( 'Microsoft.Jet.OLEDB.4.0','Data Source="c:excel est.xls";Extended properties=Excel 5.0')...Sheet1$ WHERE cargo.container = one)
WHERE EXISTS (SELECT two FROM OpenDataSource( 'Microsoft.Jet.OLEDB.4.0','Data Source="c:excel est.xls";Extended properties=Excel 5.0')...Sheet1$ WHERE cargo.container = one)
select container,slot from cargo [sql] Now, I have two similar databases, and both contain all the fields necessary for this operation and these fields are identical. However on one table it works perfectly, on the other it gives an error:
MSDTC on server 'SCRBSQLITGTO002' is unavailable.
The server I am running is the only sql 2000 server we have, so it is cannot be in cluster mode. Can anyone help? Thanks Azh
Hi All,I'm not that great with MS-SQL, as I never really have any occasion touse it. However, I need to get this one thing working and don't havea clue where to start.I have a comma-delimited file that's delivered to the server everynight that contains updates to one of the tables. I'm trying tocreate a DTS package that will read in the text file and update all ofthe records contained in it, rather than simply append them to thebottom of the table (resulting in duplicate entries).I know how to schedule it and such, but if anyone can give me sometips on the design of the DTS package, it would be much appreciated.Thanks!- Steve Osit
I have portions of data coming in as text files containing new records and updates of existing records. The solution I've figured out till yet is to import a portion of data into some intermediate table and then run a stored procedure to migrate the data into the real table. Any ideas how to do this in a more efficient way? Thanks in advance,
I use discountasp.net. I've added some new tables that I'd like to place on my website. My problem is that if I reattach my mdf file to my server, my member roster gets deleted. So my question is how can I update the mdf file without losing member information?
I am trying to update a SQL table using an excel file which has 2 columns FMStyle and FMHSNum.
FMStyle is my link to the SQL table.
Here is what I have for code....
-------------------------------------------------- Update DataTEST.dbo.zzxstylr SET hs_num = (select FMHSNum FROM OPENROWSET('Microsoft.ACE.OLEDB.12.0', 'Excel 12.0;Database=c: empStyleHSCodesLoad.xls;HDR=YES ', [Sheet1$])) Where FMStyle = zzxstylr.style --------------------------------------------------
Everything seems to be ok except for the "Where FMStyle" is giving me a message Invalid Column name on FMStyle. Do I need to qualify FMStyle and if so how.
I have my first small SQl Server 2005 database developed on my localserver and I have also its equivalent as an online database.I wish to update the local database (using and asp.net interface) andthen to upload the data (at least the amended data, but given thesmall size all data should be no trouble) to the online database.I think replication is the straight answer but I have no experience ofthis and I am wondering what else I might use which might be lesscomplicated. One solution is DTS (using SQL 2000 terms) but i am notsure if I can set this up (1) to overwrite existing tables and (2) notto seemingly remove identity attributes from fields set as identities.I know there are other possibilities but I would be glad of advice asto the likely best method for a small database updated perhaps onceweekly or at less frequent intervals,Best wishes, John Morgan
How do I insert data that I have collected in a local database onto a table on my online ie hosted database which is on a different server?
At the moment I am just uploading all the data to the hosted DB but this is wasting bandwith as only a small percentage of data is actually selected and used.
I thought that if i used a local DB and then update the table on my hosted DB this would be much more efficient, but I am not sure how to write the SQL code to do this!
I got thrown into a new project that is going to require me to update an SQL server database tables from an Access table on the backend of an Oracle database on another server. At the end of each day the Access dabase will be updated from the Oracle database.
What I need to do, is when the Access database is updated I need to have the table in the SQL database automaticaly updated. When a new record is added to the Access table I need the new record added to the SQL table. When a record is deleted in the Access table I need to keep that record in the SQL table and set a field to a value (such as 0). And when a record is updated in Access, have it updated in SQL.
Needless to say this is a bit out of my area and not sure how to accomplish this.
i have sql 2005 installed on my personal machine, but our server has sql 2000 on it. the structure of my database was made on the server, but i'm not sure how to update the server copy from my local copy. when i try to export my data from my local machine to the server (or import from my local machine to the server), i get pre-execute errors.
roughly every other week, i'll need to be able to update the server version from my local version, so i'm trying to find the most efficient method. what is the best way to update a 2000 database from a 2005 database? it doesn't matter if i append or overwrite, but i do use identity fields. the error i get when trying to use the import/export wizard is:
- Pre-execute (Error)
Messages
Error 0xc0202009: Data Flow Task: An OLE DB error has occurred. Error code: 0x80040E21. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.". (SQL Server Import and Export Wizard)
Error 0xc0202025: Data Flow Task: Cannot create an OLE DB accessor. Verify that the column metadata is valid. (SQL Server Import and Export Wizard)
Error 0xc004701a: Data Flow Task: component "Destination 3 - ReleaseNotes" (202) failed the pre-execute phase and returned error code 0xC0202025. (SQL Server Import and Export Wizard)
I know allot of folks are having this problem and I tried lots of things but nothing works. I understand the problem is coping the SQL Express on another server is the problem - I just not sure what to do?
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
This is the last statement on the Stack Trace:
SqlException (0x80131904): An attempt to attach an auto-named database for file e:wwwdata81d0493fwwwApp_DataTestDatabase.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +735091
I checked my server forum and they said I had to name a database: Example: Database=(unique name);
But this didn't work either.
I just tried a simple web project that has only one database and one table in SQL Express with one sqldatasource and one datagrid. It works fine on my pc but when I use the copy function in Visio Studio 2005 Pro - I can't run the site on the remote server: www.myjewelrydirect.com
I tried coping the database manually. I tried disconnecting the database before I copy it. Below is my connection statement:
HiI'm using SQLDataSource declarative data access with stored procedures (Select, Insert, Update, Delete). I need to display ReadOnly, Insert or Edit FormView DefaultMode from my FormView depending on whether or not the authenticated UserId is present in the Select stored procedure reference table. The scenario - during registration the new registrant may or may not complete a data entry step. If not that user must enter data on the given form before other site related functions can be accessed. Additionally, once these values are entered they may need to be changed. Any ideas?Thanks a lot.John
How can I generate the following command with VB Code Behind in NET 2.0 and have a FormView access the command. The 4 and 20 below may be 3 and 100 and etc."SELECT * FROM [Solution] WHERE ([SolutionID] IN ('4', '20'))" The List is generated by two multiselect controls (ListBox and CheckBoxList) and a text box used to search a description field in VB code behind (ASPX.VB) This post is a summary of a previous post not responded to. Sincerely,Unhistoric
Hello all! I am kinda new to this ASP.NET world! I have a website that requires daily updates! initially i was updating my database (MSSQL) manually, but now after watching videos from viseo section of this site i thought it would be better if i use formview to update , delete or edit my data! It all worked fine for me on my local machine! but when i deployed it on my server. I was able to add new records but when i tried to update an existing record or delete some record i got this error message...
The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator.
Please i know this problem is perhaps because of a very little mistake i may have done but i am going nuts because of it! please tell me what i have done wrong!
I am working in ASP.Net2.0 and Sql server 2005.Using asp button(FormView) I am trying to insert the data from the form into the database and at the same time want to move on to another page indicating the succes of insertion.My code: <asp:Button ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert"Text="Submit" PostBackUrl="~/ClinicDownload.aspx"></asp:Button> It is moving on to another page, but no insertion is taking place. If I don't give the PostBackUrl then I can insert. I want to do both in one click....Hope someone can help me. Regardspreeshma
I have formview and I have a SqlDatasource for it.I have few textboxes in the edit mode and bind it to the data columns or fields in the database.If the data for all those fields have content in it, then it will update just fine. However, if one of the text field is null or empty, the formview can't be updated When i try to update with empty data in one textboxData field allows null value, and type are varchar.I am suspecting it's throwing an internal exception somewhere. However, since all the operations are handled by the asp.net. I have no idea what's going on internally. Does anyone have an idea what's causing this error and how to fix it?
I have formview and want to get uniq id from SQL Server 2005 after it inserted. I think i should put some code in the event of oniteminserted, anybody have sample code Thanks Hu
Hi, I followed a msdn2 tutorial http://msdn2.microsoft.com/fr-fr/library/system.web.ui.webcontrols.formview(VS.80).aspx using a formview.I got one error when trying to update a field : System.Data.OracleClient.OracleException: ORA-01036: illegal variable name/numberHere is my DataBase definition :ColumnType Nullable Primary Key EMPLOYEE_IDNUMBER(6,0) No - 1 FIRST_NAMEVARCHAR2(20) Yes - - LAST_NAMEVARCHAR2(25) No - -If someone has already got this error before or see why it happen, i'll be very happy if he tell it to me why. Here is my aspx page code : <html xmlns="http://www.w3.org/1999/xhtml"><head><title>Titre Forview</title></head> <body> <form id="Form1" runat="server"> <h3>FormView Example</h3> <asp:FormView id="EmployeeFormView" datasourceid="EmployeeSource" allowpaging="false" datakeynames="Employee_ID" headertext="Employee Record" emptydatatext="No employees found." onitemupdating="EmployeeFormView_ItemUpdating" onmodechanging="EmployeeFormView_ModeChanging" runat="server"> <headerstyle backcolor="CornFlowerBlue" forecolor="White" font-size="14" horizontalalign="Center" wrap="false"/> <rowstyle backcolor="LightBlue" wrap="false"/> <pagerstyle backcolor="CornFlowerBlue"/> <itemtemplate> <table> <tr><td rowspan="6"></td> <td colspan="2"></td> </tr> <tr><td><b>Name:</b></td> <td><%# Eval("First_Name") %> <%# Eval("Last_Name") %></td> </tr> <tr><td><b>Employee_ID:</b></td> <td><%# Eval("Employee_ID") %></td> </tr> <tr><td><b>Hire Date:</b></td> <td><%# Eval("Hire_Date","{0:d}") %></td> </tr> <tr><td></td><td></td></tr> <tr><td colspan="2"> <asp:linkbutton id="Edit" text="Edit" commandname="Edit" runat="server"/></td> </tr> </table> </itemtemplate> <edititemtemplate> <table> <tr><td rowspan="6"></td> <td colspan="2"></td> </tr> <tr><td><b>Name:</b></td> <td><asp:textbox id="FirstNameUpdateTextBox" text='<%# Bind("First_Name") %>' runat="server"/> <asp:textbox id="LastNameUpdateTextBox" text='<%# Bind("Last_Name") %>' runat="server"/></td> </tr> <tr><td></td><td></td></tr> <tr><td><b>Hire Date:</b></td><td> <asp:textbox id="HireDateUpdateTextBox" text='<%# Bind("Hire_Date", "{0:d}") %>' runat="server"/> </td> </tr> <tr valign="top"><td></td><td></td></tr> <tr> <td colspan="2"> <asp:linkbutton id="UpdateButton" text="UPDATE" commandname="Update" runat="server"/> <asp:linkbutton id="CancelButton" text="Cancel" commandname="Cancel" runat="server"/> </td> </tr> </table> </edititemtemplate> </asp:FormView> <asp:label id="MessageLabel" forecolor="Red" runat="server"/> <asp:sqldatasource id="EmployeeSource" selectcommand="Select Employee_ID, Last_Name, First_Name, Hire_Date From Employees where EMPLOYEE_ID=99" updatecommand="update EMPLOYEES set LAST_NAME='Last_Name', FIRST_NAME='First_Name' where EMPLOYEE_ID=99" ConnectionString="<%$ ConnectionStrings:ConnectionStringOracle %>" ProviderName="<%$ ConnectionStrings:ConnectionStringOracle.ProviderName %>" runat="server"/> </form> </body></html> And my aspx.cs page code : using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Collections.Specialized;using System.Data.OracleClient;using System.Windows.Forms;public partial class A_Supprimer_Aussi : System.Web.UI.Page{ protected void Page_Load(object sender, EventArgs e) { } public void EmployeeFormView_ItemUpdating(Object sender, FormViewUpdateEventArgs e) { // Validate the field values entered by the user. This // example determines whether the user left any fields // empty. Use the NewValues property to access the new // values entered by the user. ArrayList emptyFieldList = ValidateFields(e.NewValues);
if (emptyFieldList.Count > 0) { // The user left some fields empty. Display an error message. // Use the Keys property to retrieve the key field value. String keyValue = e.Keys["EmployeeID"].ToString(); MessageLabel.Text = "You must enter a value for each field of record " + keyValue + ".<br/>The following fields are missing:<br/><br/>"; // Display the missing fields. foreach (String value in emptyFieldList) { // Use the OldValues property to access the original value // of a field. MessageLabel.Text += value + " - Original Value = " + e.OldValues[value].ToString() + "<br>"; } // Cancel the update operation. e.Cancel = true; } else { // The field values passed validation. Clear the // error message label. MessageLabel.Text = ""; } } ArrayList ValidateFields(IOrderedDictionary list) { // Create an ArrayList object to store the // names of any empty fields. ArrayList emptyFieldList = new ArrayList(); // Iterate though the field values entered by // the user and check for an empty field. Empty // fields contain a null value. foreach (DictionaryEntry entry in list) { if (entry.Value == String.Empty) { // Add the field name to the ArrayList object. emptyFieldList.Add(entry.Key.ToString()); } }
return emptyFieldList; } public void EmployeeFormView_ModeChanging(Object sender, FormViewModeEventArgs e) { if (e.CancelingEdit) { // The user canceled the update operation. // Clear the error message label. MessageLabel.Text = ""; } }}
Hello,I am trying to determine the best way to do the following. For simplicity we have two tables Master and Awards. These share a common pk UFID. Master contains columns (UFID, AccountName...) Awards contains columns (ID, UFID, AwardingAgency, Amount) When a user submits a new award in Formview I would like to populate the UFID automatically so that the user does not have to enter this each time. I am currently using the logged in username to select records for that user only. The value of this username matches Master.AccountName. Since I am hoping to use this same logic across many tables, I would appreciate any suggestions as to how best handle this.Thanks,Ken
Hello,I have a formview and when I load it I would like to check a variable "Cover" from the database, to see wether or not it is empty. But how on earth do I get the variables from the sqldatasource in my function "FormView1_load(...)" ??
Appreciate your efforts in answering queries of so many newbees!I hope to find answering my query..I have created a logon screen to which i have also given the option of changing the password ... Now below is the code for updating the new password given by the user ....Imports System.Data.SqlClient Dim con As New SqlConnection("server=sys2;initial catalog=kris;integrated security=SSPI") Dim cmd As New SqlCommand("select * from u_login", con) Dim dr As SqlDataReader Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load End Sub Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click con.Open() dr = cmd.ExecuteReader While dr.Read() If dr(0) = txtEmail.Text And dr(1) = txtoldpwd.Text Then Dim NewPwdStr As String = txtnewpwd.Text Dim OldPwdStr As String = txtoldpwd.Text Dim sqlstr As String = "Update U_Login set pwd = ('" & NewPwdStr & "') Where pwd = '" & OldPwdStr & "'" Dim cmd1 As New SqlCommand("sqlstr", con) cmd1.ExecuteNonQuery() Response.Write(" Password Changed ... Please login again") End If End While dr.Close() con.Close() End Sub The above code although doesnt throw any error however it shows a blank screen and doesnt even update the new password. Can you plz help me understand what could possibly be wrong in my code n why is that am getting the blank screen. Your help will be highly appreciated!Thanks,Brandy
