Get The Selected Button Text In A Gridview

Feb 22, 2011

<asp:GridView ID="GridView3" runat="server" AutoGenerateColumns="False"
DataSourceID="getStudents"
onselectedindexchanged="GridView3_SelectedIndexChanged" Visible="False">
<Columns>
asp:BoundField DataField="Student_Last_Name" HeaderText="Student_Last_Name"
[code]...

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I have try to put the codes in Page_Load but not functioning, below is my code:

[Code]....

Can anyone guide me how to do this and I'm using C#?

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I have a dropdownlist, and a Gridview where one of the columns is a dropdownlist. both dropdown lists use the same data source. When a value is selected in the dropdownlist (outside the gridview) I want to chaneg the selectedValue and selectText of every dropdownlist in my gridview. This is what I have tried:

Dropdownlist:
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When I click I get an error. It says object expected. However I know those objects exsist!

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<asp:Table ID="Table1" runat="server">
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<asp:GridView ID="GridView2" runat="server"
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My Gridview looks like this :

[Code]....

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[Code]....

[Code]....

when i click submit button i got this error

Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

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The Headertext of my column only changes after clicking the button a second time round, why is this? I obviously need it to work on the first click.

HTML Code:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="ChangeHeader.aspx.vb" Inherits="ColHeaderChangeTest.ChangeHeader" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

[code]....

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I have a .net 3.5 web form with an ajax combo box and a text box inside it. The bombo box is bound to a SqlDataSource.

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is there a way to prevent the user ented text from being inserted into the bombo box?

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I want to delete   grid view row on button click .when I select  a row and click on  delete button the selected row should be delete using jquery,with out using database . I want to do this work on button click using jquery 

Following the my jqury code for delete

<script type="text/javascript">
$(function () {
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[code]....

i am working without using data base only delete from gridview.

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Why Does ListControl.Text Return The *value* Of The Selected ListItem Rather Than The *text*

Mar 8, 2011

List controls deriving from ListControl, such as DropDownList, ListBox or RadioButtonList, are populated by a list of ListItems. A ListItem has a Value and a Text property.

ListControl offers the following methods to access the currently selected item:

ListControl.SelectedItem returns the currently selected ListItem,
ListControl.SelectedValue returns the Value property of the currently selected ListItem.

Now, the interesting thing is:

ListControl.Text returns exactly the same value as ListControl.SelectedValue. It does not return SelectedItem.Text, as one might expect.

This is by design:

[code]....

The Text property gets and sets the same value that the SelectedValue property does.

This seems counter-intuitive and confuses people. My question is: Why was it done this way? I can imagine that providing a Text property is necessary for implementing the ITextControl interface, but why on earth would you choose to have it return the Value of the ListItem rather than the Text?

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