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POASP.NET dynamic Command Button event not firing
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  1. POASP.NET dynamic Command Button event not firing
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    copied!<p>I'm trying to create Command Buttons dynamically, but clicking the button in question doesn't seem to raise the corresponding CommandButton_Click event. I noticed that in the examples on SO a property is set for Button.OnCommand as well as the CommandName and CommandArgument but it isn't an option in intellisense.</p> <p>So the question is, what am I doing wrong here (code below without the OnCommand), is it accessed in some other way - if so, why do the examples I've found all show it as .OnCommand?</p> <p><strong>EDIT:</strong> Further to help, I have added the handler however the event is still not firing. The buttons reside in an UpdatePanel and are rebuilt on every postback (along with the handler). I have created a simplified example of what I'm doing which is shown below If the button event fires, it writes "EVENT FIRED" to the txtTestFired Textbox - suffice to say I have never seen that. This is really driving me nuts, any help is very gratefully received.</p> <p>.aspx file</p> <pre><code>&lt;form id="frmMain" runat="server"&gt; &lt;asp:ScriptManager ID="scmAddProducts" runat="server"&gt; &lt;/asp:ScriptManager&gt; &lt;asp:updatepanel runat="server"&gt; &lt;ContentTemplate&gt; &lt;asp:TextBox ID="txtProduct" runat="server"&gt;&lt;/asp:TextBox&gt; &lt;br /&gt; &lt;asp:Button ID="btnAddItem" runat="server" Text="Add Line" /&gt;&amp;nbsp; &lt;asp:TextBox ID="txtTestFired" runat="server"&gt;&lt;/asp:TextBox&gt; &lt;br /&gt; &lt;br /&gt; &lt;asp:Panel ID="pnlAddedLines" runat="server"&gt;&lt;/asp:Panel&gt; &lt;/ContentTemplate&gt; &lt;/asp:updatepanel&gt; &lt;/form&gt; </code></pre> <p>.aspx.vb file</p> <pre><code>Protected Sub btnAddItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAddItem.Click Dim dtItems As New System.Data.DataTable If Session("Items") Is Nothing Then Dim dcColumn As New System.Data.DataColumn dcColumn.DataType = Type.GetType("System.String") dcColumn.ColumnName = "Product" dtItems.Columns.Add(dcColumn) Session("Items") = dtItems End If dtItems = CType(Session("Items"), System.Data.DataTable) Dim drRow As System.Data.DataRow drRow = dtItems.NewRow() drRow("Product") = txtProduct.Text dtItems.Rows.Add(drRow) Session("Items") = dtItems txtProduct.Text = "" End Sub Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender If Not Session("Items") Is Nothing Then Dim dtItems As System.Data.DataTable = CType(Session("Items"), System.Data.DataTable) Dim iItemIndex As Integer = 1 For Each drRow In dtItems.Rows Dim btnClose As New Button btnClose.ID = "btnClose" &amp; iItemIndex btnClose.CssClass = "formCloseButton" btnClose.Text = "X" AddHandler btnClose.Click, AddressOf Button_Clicked pnlAddedLines.Controls.Add(btnClose) btnClose = Nothing Dim txtProduct = New TextBox txtProduct.ID = "txtProduct" &amp; iItemIndex txtProduct.CssClass = "formText" txtProduct.Text = drRow("Product") txtProduct.Columns = "40" pnlAddedLines.Controls.Add(txtProduct) iItemIndex += 1 Dim litHR = New Literal litHR.Text = "&lt;hr /&gt;" pnlAddedLines.Controls.Add(litHR) litHR = Nothing Next End If End Sub Private Sub Button_Clicked(ByVal sender As Object, ByVal e As System.EventArgs) txtTestFired.Text = "EVENT FIRED" End Sub </code></pre>
 

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