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POButton does not submit on first click, but on subsequent click submits previous information
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  1. POButton does not submit on first click, but on subsequent click submits previous information
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    copied!<p>I am making an editable <code>GridView</code>, but my problem is that whenever I click on a button nothing happens. When I click a second time I see what happened during the previous click. </p> <h3>aspx</h3> <pre><code> &lt;%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" EnableEventValidation="true" CodeBehind="Default.aspx.cs" Inherits="BeheerSysteemWeb._Default" %&gt; &lt;asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"&gt; &lt;/asp:Content&gt; &lt;asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"&gt; &lt;h2&gt; &lt;asp:GridView ID="GridView1" runat="server" onrowcancelingedit="GridView1_RowCancelingEdit" onrowediting="GridView1_RowEditing" onrowupdating="GridView1_RowUpdating" AutoGenerateColumns="False"&gt; &lt;Columns&gt; &lt;asp:CommandField ButtonType="Button" ShowEditButton="true" ShowCancelButton="true" /&gt; &lt;asp:TemplateField HeaderText="36"&gt; &lt;EditItemTemplate&gt; &lt;asp:TextBox runat="server" ID="txtSpoor" Text="TramNummer" /&gt; &lt;/EditItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;/Columns&gt; &lt;/asp:GridView&gt; &lt;/h2&gt; &lt;/asp:Content&gt; </code></pre> <h3>Codebehind</h3> <pre><code> namespace BeheerSysteemWeb { public partial class _Default : System.Web.UI.Page { List&lt;string&gt; leeg = new List&lt;string&gt;(); protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { LoadData(); } } private void LoadData() { leeg.Add(""); leeg.Add(""); leeg.Add(""); leeg.Add(""); GridView1.DataSource = leeg; GridView1.DataBind(); } protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) { GridView1.EditIndex = e.NewEditIndex; } protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) { e.Cancel = true; GridView1.EditIndex = -1; } protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) { GridViewRow row = GridView1.Rows[e.RowIndex]; TextBox txtSpoor = (TextBox)row.FindControl("txtSpoor"); e.Cancel = true; GridView1.EditIndex = -1; } } } </code></pre> <p>How can I get the button to work in ASP.NET ?</p>
 

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