Binding A SqlDataSource To A TextBox Or Label
Feb 28, 2007
I have a SQL database with 1 column in it.. it is a do not call registry for my office. I want to make a web application so our leads can go on the web and request to be put on the do not call list. problem is, if their number already exists, it gets a violation of primary key...
Normal handling for this would be to do a select query based on user input, and if it exists in the database, tell them that, else do the insert query...
Problem is, i cant seem to figure out how to bind the result of the select query to a textbox or label so i can compare the results to do that logic. Any ideas? This is in asp .net 2.0. Thanks!
-Dan
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Mar 9, 2007
Hi, I wants to bind textbox with sqldatasource in c#.net so I am using following code and has following error... Exception Details: System.NullReferenceException: Object reference not
set to an instance of an object.Source Error:
Line 22: Line 23: System.Data.DataView dv = (DataView) SqlDataSource1.Select(System.Web.UI.DataSourceSelectArguments.Empty);Line 24: TextBox1.Text = dv[0]["Proid"].ToString();Line 25: Line 26: }Please, anybody knows solution tell me
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Oct 23, 2007
Hi all. I have a label on my page and I want to bind it to a field in a table. The catch is that I want to bind it to the last row in the table. I think I can use the custom binding, but I don't know how to bind to the last row. Any Suggestions ?
p.s. The page is tied to an SqlDataSource that retrieves the data from the above table.
Thanks in advance.
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Apr 22, 2004
i wanna know is there a way to retrieve data from the sql database and then
instead of putting it in the datagrid, can i put a specific field of data to a textbox?
i mean just a data (for example, a username where the password match the username) in a textbox.
thanks
sherlyn
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Jan 31, 2008
Hello,
I'm trying to develop a VB.NET (2005) form with just a ComBobox and a TextBox.
I bind a combobox with the SqlCeResultset (Scrollable | Updatable ). Do the same with the TextBox.
Combobox1.DataSource = rsResultSet
TextBox1.DataBindings.Add("Text", rsResultSet, "Obs")
This works (when I change the Combo item the textbox changes as well) but any changes to the textbox text do not reach the DB.If i change the Combobox item and back the old data is still there. If i look at the result
set it does appear as updateable.
How can I update the SqlCeResultset when I change the TextBox text?
Thanks
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Oct 11, 2004
Hi all;
How can I show the Name & Age of the selected student's ID in the appropriate TextBox(s) (txtName & txtAge)?
BTW:
My "ShowStudent" stored procedure:
ALTER PROCEDURE ShowStudent
@ID int
AS
SELECT ID, Name, Age FROM Student WHERE ID=@ID
RETURN
And this is the code for "Show" button:
' Which SP? Connection?
Dim cmdSelect As New SqlCommand("ShowStudent", con)
cmdSelect.CommandType = CommandType.StoredProcedure
'-----[ Spacifay SP parameters ]-----
'ID
cmdSelect.Parameters.Add("@ID", SqlDbType.Int, 4)
cmdSelect.Parameters("@ID").Value = CType(txtID.Text, Integer)
'Open Connection
con.Open()
'-----[ Execute the select command ]-----
cmdSelect.ExecuteReader()
'----------------------------------------
'Close connection
con.Close()
'========================================================
End Sub
So, do I have to use an OUTPUT parameter in the stored procedure? If Yes, How to get its (the parameter) value and bind it to the appropriate TextBox?
Hope my question is clear!!
Thanks in advanced!
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Oct 9, 2006
i have to display some of my SQL data on a webpage, and i don't want to use the gridview and all his "friends". all i want is to display some values out of the sqlDataSource on my webpage.is it possible? and if so, then how can i do it?thanks in advance.
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Sep 13, 2006
Hi,Just a little question...Is it possible to link a SqlDataSource to a label without using a repeater or a formview?I just want to select one column from a single row in a single table and sending the value to a label.The code would be something like this :<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:MyConnectionString %>" SelectCommand="SELECT name FROM Page WHERE idPage = 1">
<SelectParameters>
<asp:Parameter DefaultValue="1" Name="idPage" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("name") %>'></asp:Label> So, what can I add in the label properties or in the codefile to make this work if it is possible ?Or am I obliged to "hard code" it in c# with an SqlConnection, a SqlCommand and a SqlDataReader ?Thanks in advance...
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Nov 17, 2006
This is my SQLDataSource for my gridview
<asp:SQLDataSource ConnectionString="<%$ ConnectionStrings:Pubs %>" id="sqlProducts" Runat="Server" SelectCommand=' "Select * from adressen INNER JOIN Adressoort ON adressen.AD_ID = Adressoort.AD_ID where " & lblsql.Text ' ></asp:SQLDataSource>
the label is something like : adressoort.AD_soort = '3' or adressoort.AD_soort = '1'
I keep on getting the error sever tag not well formed
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Nov 22, 2006
Hi all,I would like to do something I thought was simple but I can't seem to figure it out. I would like to bind the Text properties to two labels to the columns in an SqlDataSource, much the same as you can bind a listbox to a SqlDataSource.Is this possible?The reason why I'm trying it this way is because I originally used an OleDB connection and datareader, but it doesn't seem to work on our service providers server (keeps saying that it can't find the database) even though it works on the four other server's I've tried. It definitely connects to the database when I use the SqlDataSource on a listbox control, but it fails when I use the same connection string with the OleDB connection.Is this the best way to go about it, or should I persist with finding the OleDB/datareader (the service provider has been no help at all). Thanks.
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Mar 1, 2008
Hi,
I have a sqldatasource which returns the result I want, but I need to assign it to a label or text box. Is there an easy way of doing this? I attempted it using this code:
PropertyFriendIDLabel.Text = PropUserIdSqlDataSource
Thanks
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Feb 13, 2007
This is an easy question. I thought I have databinded a textbox to a SQLDataSource. But now I do not see how to do that now. Can somebody help with this?
Thanks,
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Jan 10, 2006
Hi, I am using a SQL DataSource with a few parameters. I need to specify the value of the parameters at run time but I need a custom way to do it as the value needs to be calculated not come from Cookie, Control, Form, Profile, QueryString or Session. Is there a way to bind your own value to these parameters. For instance if I had a variable how would I bind that to the parameter?
At the moment i am doing the following which works but I dont think it is the correct way
dsMyDataSource.SelectParameters["MyParameter"].DefaultValue = MyCalculatedValue;
In previous projects i have added a value to the Session and then bound the parameter value to the session but that doesnt seem like a good solution either.
Thanks for any help you can give.
Martin
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Nov 12, 2005
how can i display the result of an asp:SqlDataSource into a lable control.the sqldatasource returns the count for some thing ie "select count(*) as total from tbl"please help
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Oct 6, 2006
Hello, I just started working with ASP.NET.I'm trying to use the CheckBoxList Control. As I understand it, you can bind a SqlDataSource to this control and it loads the list for you. However tp precheck the items, you have to do this manually. This part works fine. Next part was to save whatever the user checks. I wrote stored Procedure and now just trying to pass 1 parameter to the stored procedure using a second SqlDataSource. I get the error: "A severe error occurred on the current command. The results, if any, should be discarded."Here is the second datasource I am using to try and save the data:<asp:SqlDataSource ID="sds_PersonRole" runat="server" ConnectionString="<%$ ConnectionStrings:Development %>"SelectCommand="usp_selectPersonRole"SelectCommandType="StoredProcedure"UpdateCommand="usp_updatePersonRole"UpdateCommandType="StoredProcedure"><SelectParameters> <asp:ControlParameter ControlID="gv_Person" Name="PERSON_ID" PropertyName="SelectedValue" Type="Int32" /></SelectParameters><UpdateParameters> <asp:Parameter Name="strXML" Size="8000" Type="String" /> <asp:Parameter Direction="InputOutput" Name="err_msg" Type="String" Size="150" DefaultValue="0" /></UpdateParameters></asp:SqlDataSource>I have a code behind file with the following modules: (btnEditPerson is clicked to start the process. the sds_PersonDetails is updated via form contolls and works fine.) Error occurs on the bolded line (Stored procedure is just accepting the string and saving to a field. It works fine, I tested it. Its just erroring out before it runs the stored procedure. Protected Sub btnEditPerson_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnEditPerson.Click sds_PersonDetails.Update() gv_Person.DataBind() sds_PersonRole.Update()End Sub Protected Sub sds_PersonRole_Updating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceCommandEventArgs) Handles sds_PersonRole.Updating Dim command As Data.Common.DbCommand command = e.Command 'un-check all checkboxlist items (count - 1 to account for starting at 0) Dim listCount As Integer = cbl_Role.Items.Count() - 1 Dim strXML As String strXML = "<personRole>" For x As Integer = 0 To listCount If cbl_Role.Items(x).Selected() = False Then strXML = strXML & "<person id='" & gv_Person.SelectedValue & "' />" strXML = strXML & "<role id='" & cbl_Role.Items(x).Value & "' />" End If Next strXML = strXML & "</personRole>" command.Parameters("@strXML").Value = strXML lbl_ErrMsg.Text = command.Parameters("@err_msg").Value.ToString() End Sub
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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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Mar 3, 2008
i am using 2 textbox to search name and instituition of some students. on button click need to display the result on gridview. but i dont get any result.. pl adviceSqlDataSource1.SelectCommand = "SELECT Sname, Address, Instituition, Role, Testgroup, Email FROM std_det WHERE (Sname LIKE '%'+@Param1+'%') AND (Instituition = 'RASET') AND (Role LIKE '%'+@Param2+'%') AND (Instituition = 'RASET')"; name.ControlID = "TextBox3"; name.DefaultValue = "%"; name.Name = "Param1"; name.PropertyName = "Text"; inst.ControlID = "TextBox4"; inst.DefaultValue = "%"; inst.Name = "Param2"; inst.PropertyName = "Text"; //SqlDataSource1.Select(DataSourceSelectArguments.Empty); SqlDataSource1.SelectParameters.Add(name); SqlDataSource1.SelectParameters.Add(inst); SqlDataSource1.DataBind(); //DataView dv = (DataView)this.SqlDataSource1.Select(DataSourceSelectArguments.Empty); GridView2.DataSourceID = "SqlDataSource1"; GridView2.DataBind();
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Feb 5, 2006
Hi,What's the 'new' declarative way to fetch one field from a SQL table and display the result in a Label control?I have a users table with a fullname field. I want to query the table and retrieve the fullname where the usertable.username = Session("loggedinuser")I can make the SqlDataSource ok that has the correct Select query, but not sure how to bind the label to that.thanks,Bruce
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Oct 26, 2007
Ive run into a situation where some code im using will not function the same when between these two cases. So, this has me wondering what is going on behind the scenes. What is the sequence of events that are occurring that would possibly be messing things up.Here is the sample codeIts a gridview that is using a sqldatasource control. The code works fine, but if you want to bind the grid to a dataset and call databind yourself, things dont work as expected and the other features that the code performs just isnt happening, at least not for me.
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Aug 30, 2007
Hi every experts
I have a exist Stored Procedure in SQL 2005 Server, the stored procedure contain few output parameter, I have no problem to get result from output parameter to display using label control by using SqlCommand in Visual Studio 2003. Now new in Visual Studio 2005, I can't use sqlcommand wizard anymore, therefore I try to use the new sqldatasource control. When I Configure Datasource in Sqldatasource wizard, I assign select field using exist stored procedure, the wizard control return all parameter in the list with auto assign the direction type(input/ouput....), after that, whatever I try, I click on Test Query Button at last part, I always get error message The Query did not return any data table.
My Question is How can I setup sqldatasource to access Stored Procedure which contain output parameter, and after that How can I assign the output parameter value to bind to the label control's Text field to show on web?
Thanks anyone, who can give me any advice.
Satoshi
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Mar 6, 2006
I am working with a Detailsview. I am displaying information from a number of different tables, and so when I configure the datasource I have to specify a custom sql statement. I can get it to display the right columns, but I cannot seem to be able to use a where statement.
I am wanting to display the info in the Detailsview based on what is entered into a textbox, but I get an error when I try to add in the where statement. Can someone tell me what I am missing here?
Thanks
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Jul 3, 2006
I enter a id in the textbox and based on that it give me a list of all entries in gridview that use that id.This works.But if I leave it blank it gives me nothing. I want to make it so if I leave it blank it give me all the id's.Do I have to modify the sqldatasource on pageload?
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Jan 15, 2008
Hi!
I have a page (a search page) with sqldatasource, gridview and set of textboxes. The sqldatasource is using stored procedure with parameters. Using the visual wizard i'm associating the parameters with apropriate textboxes controls. It all works, like a charm.
The problem arises when I input some dangerous code in any textbox , like ' or % .
I'm having exception about unenclosed strings, generally info about the possibility of sql injection.
I thought that using ControlParameters, any Parameter in fact is sqlinjection safe, but apparently it isn't.
Does anyone know the right way of achieving my goal? It's very urgent.
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Apr 9, 2007
I have a DataReader on a web page: <asp:SqlDataSource ID="ChangeInfoRecord" runat="server" ConnectionString..........
I want to display the value of one of the returned field in a text box. What is the correct syntax? I tried
RolledFromDisplay.Text = ChangeInfoRecord("RolledFrom")
but that isn't it.
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Sep 4, 2007
my problem is i can't retrieve data from my sqldatasource to be displayed in textbox... i try to do it in vb codes. somebody help me here?
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Jan 30, 2008
I want to fill text box using sqldatasource ...
how can i do that ??
thanx in advace ..
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Feb 17, 2008
I have a sqlDatasource with 3 parameters based on the input of 3 text boxes on the page. The datasource returns sales details for a company based on a from and to date. I am attempting to set the value of the 3 parameters in the Selecting event of the datasource control but I'm not getting any data back. If I set the values literally then I get data back. Also when I step through the code I can see the 3 parameters getting their values from the textboxes and the drop down list as they should. This is driving me insane as I'm new to .net and just can't see what is stopping me retrieving the data when using the form fields to set the datasources parameters. Below is the aspx and the code behind for the page. Thanks in advance for any help. aspx..... <%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="LabelSales.aspx.cs" Inherits="LabelSales" Title="Untitled Page" %><asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <asp:SqlDataSource ID="SqlDataSourceSales" runat="server" EnableCaching="false" ConnectionString="<%$ ConnectionStrings:streetwisedigitalConnectionString %>" SelectCommand="DL_GET_SALES_BY_LABEL" SelectCommandType="StoredProcedure" OnSelecting="SqlDataSourceSales_Selecting" > <SelectParameters> <asp:Parameter Name="fromDate" /> <asp:Parameter Name="toDate" /> <asp:Parameter Name="label" /> </SelectParameters> </asp:SqlDataSource> <asp:SqlDataSource ID="SqlDataSourceLabels" runat="server" SelectCommand="select label_id, label_name from dl_label order by label_name asc" ConnectionString="<%$ConnectionStrings:streetwisedigitalConnectionString%>"> </asp:SqlDataSource> <div> <table> <tr> <td>Start Date: </td> <td> <asp:TextBox ID="FromDate" Runat="server" Width="70"/> <asp:Button ID="btnFrom" Runat="server" Text="..." UseSubmitBehavior="false" /> </td> </tr> <tr> <td>End Date: </td> <td> <asp:TextBox id="ToDate" Runat="server" Width="70" /> <asp:Button ID="btnTo" Runat="server" Text="..." UseSubmitBehavior="false" /> </td> </tr> <tr> <td>Label: </td> <td> <asp:DropDownList ID="LabelList" Runat="server" DataSourceID="SqlDataSourceLabels" DataTextField="label_name" DataValueField="label_name"> </asp:DropDownList> </td> </tr> <tr> <td colspan="2" align="right"> <asp:Button ID="Button1" OnClick="SubmitButton_OnClick" Text="View Sales" runat="server" /> </td> </tr> </table> <p> <asp:GridView ID="GridViewSales" runat="server" DataSourceID="SqlDataSourceSales" ShowFooter="True" AllowSorting="True" AutoGenerateColumns="False" OnRowDataBound="GridViewSales_RowDataBound" EmptyDataText="No data to display."> <Columns> <asp:BoundField DataField="cat_no" HeaderText="Cat No" /> <asp:BoundField DataField="artist" HeaderText="Artist" /> <asp:BoundField DataField="title" HeaderText="Title" /> <asp:BoundField DataField="remix" HeaderText="Remix" /> <asp:BoundField DataField="qty" HeaderText="Sold" /> <asp:boundfield datafield="commission" HtmlEncode="False" dataformatstring="{0:F2}" headertext="Commission"> <ItemStyle HorizontalAlign="Right" /> </asp:boundfield> </Columns> </asp:GridView> </p> </div></asp:Content>code behind...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;public partial class LabelSales : System.Web.UI.Page{ int totalSold; decimal totalCommssion; protected void GridViewSales_RowDataBound(object sender, GridViewRowEventArgs e) { // add column totals to gridview if (e.Row.RowType == DataControlRowType.DataRow) { totalSold += (int)DataBinder.Eval(e.Row.DataItem, "qty"); totalCommssion += (decimal)DataBinder.Eval(e.Row.DataItem, "commission"); } // display the totals else if (e.Row.RowType == DataControlRowType.Footer) { e.Row.Cells[0].Text = "<b>Total</b>"; e.Row.Cells[4].Text = totalSold.ToString(); e.Row.Cells[5].Text = totalCommssion.ToString("f2"); } } protected void Page_Load(object sender, EventArgs e) { } protected void SqlDataSourceSales_Selecting(object sender, SqlDataSourceSelectingEventArgs e) { // *** This method does not work *** e.Command.Parameters[0].Value = FromDate.Text; e.Command.Parameters[1].Value = ToDate.Text; e.Command.Parameters[2].Value = LabelList.Text; // *** This method works! *** e.Command.Parameters[0].Value = "02/01/2007"; e.Command.Parameters[1].Value = "02/01/2008"; e.Command.Parameters[2].Value = "Fat!"; } protected void SubmitButton_OnClick(object sender, EventArgs e) { SqlDataSourceSales.Select(DataSourceSelectArguments.Empty); }} Many thanks Simon
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Jan 17, 2008
Beginner question, I know -- but in ASP.NET 2.0, I can't figure out (or find out) how to populate a TextBox with data from the db using a SqlDataSource control (without using a formview control)???
Any help would be greatly appreciated!!
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Oct 25, 2006
Hi, it is few days I posted here my question, but received no answer. Maybe the problem is just my problem, maybe I put my question some strange way. OK, I try to put it again, more simply. I have few textboxes, their values I need to transport to database. I set SqlDataSource, parameters... and used SqlDataSource.Insert() method. I got NULL values in the database's record. So I tried find problem by using Microsoft's sample code from address http://msdn2.microsoft.com/en-us/library/system.web.ui.webcontrols.sqldatasource.insert.aspx. After some changes I tried that code and everything went well, data were put into database. Next step was to separate code beside and structure of page to two separate files followed by new test. Good again, data were delivered to database. Next step: to use MasterPage, very simple, just with one ContentPlaceHolder. After this step the program stoped to deliver data to database and delivers only NULLs to new record. It is exactly the same problem which I have found in my application. The functionless code is here:http://forums.asp.net/thread/1437716.aspx I cannot find any answer this problem on forums worldwide. I cannot believe it is only my problem. I compared html code of two generated pages - with maserPage and without. There are differentions in code in ids' of input fields generated by NET.Framework:Without masterpage:<input name="NazevBox" type="text" id="NazevBox" /><span id="RequiredFieldValidator1" style='color:Red;visibility:hidden;'>Please enter a company name.</span><p><input name="CodeBox" type="text" id="CodeBox" /><span id="RequiredFieldValidator2" style='color:Red;visibility:hidden;'>Please enter a phone number.</span><p><input type="submit" name="Button1" value="Insert New Shipper" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("Button1", "", true, "", "", false, false))" id="Button1" /> With masterpage:<input name="ctl00$Obsah$NazevBox" type="text" id="ctl00_Obsah_NazevBox" /><span id="ctl00_Obsah_RequiredFieldValidator1" style='color:Red;visibility:hidden;'>Please enter a company name.</span><p><input name="ctl00$Obsah$CodeBox" type="text" id="ctl00_Obsah_CodeBox" /><span id="ctl00_Obsah_RequiredFieldValidator2" style='color:Red;visibility:hidden;'>Please enter a phone number.</span><p><input type="submit" name="ctl00$Obsah$Button1" value="Insert New Shipper" onclick="javascript:WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions("ctl00$Obsah$Button1", "", true, "", "", false, false))" id="ctl00_Obsah_Button1" />In second case ids' of input fields have different names, but I hope it is inner business of NET.Framework.There must be something I haven't noticed, maybe NET's bug, maybe my own. Thanks for any suggestion.
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May 24, 2007
I want to add up the values in a couple of text boxes in another textbox. How do I refer to the textboxes?
fields!textbox1.value doesn't work..what does?
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Sep 12, 2007
Hi!
I dont know if i will explain this correctly, but my problem is with reporting service.
I'm supposed to Sum value in one textbox and than that sum use it in sum in other textbox.
Something like this:
Sum(Fields!Abc.Value/(Fields!dfg.Value+Sum(Fields!abc.Value)),"matrix1_RowGroup1")*100
I get error msg 'The Value expression for the textbox 'textbox49' contains an aggregate function (or RunningValue or RowNumber functions) in the argument to another aggregate function (or RunningValue). Aggregate functions cannot be nested inside other aggregate functions.'
Something like this wont work either Sum(Fields!abc.Value/ReportItems("textbox56").Value)*100
Error The Value expression for the textbox 'textbox55' uses an aggregate function on a report item. Aggregate functions can be used only on report items contained in page headers and footers.
So, pls help if you know how to reference textbox in other in body of report.
Thx.
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Jul 23, 2007
What is the C# code I use to do this?
I'm guessing it should be fairly simple, as there is only one row selected. I just need to pull out a specific field from that row and then insert that value into a different SqlDataSource.
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