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POButton click event on modal popup, inside a grid-view not firing
 

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    <p>I'm having problems with the following.</p> <p><strong>The scenario:</strong> I have a asp grid with a few columns that bind to data. The last column has been converted to a template-field. In this template-field is a button with a modal popup extender attached to it. Hidden inside this field is a modal popup. This modal popup is used to add a new account. it contains 2 text boxes, drop down lists and buttons("Add" and "Cancel"). When "add" is clicked the modal should close after the inserting of the new account in the code behind.</p> <p><strong>The Problem:</strong> I get the popup to display and load the Drop down lists from the cache, without problem. How do I get the button click event to fire in the code behind. I've tried using a JavaScript function that performs a _doPostBack('btnAddAcc','') but it keeps returning the error "JavaScript error: Object expected". I gathered after about 1 hour on Google that it is because "btnAddAcc' is not found because it is actually within the grid-view cell and can't be directly accessed. Using page methods and ajax calls is a last resort as the company has a strict policy against this and only allowes this after a bunch of paperwork.</p> <p>The Code:</p> <pre><code>&lt;asp:GridView ID="gvNEA" runat="server" CssClass="gridA_Orange" AutoGenerateColumns="False" AllowPaging="True" EmptyDataText="No transactions with 'Non Existent Account(s)'" ShowHeaderWhenEmpty="True" Width="945px"&gt; &lt;Columns&gt; &lt;asp:BoundField HeaderText="Transaction Date" DataField="Transaction_Date" /&gt; &lt;asp:BoundField HeaderText="Account Number" DataField="Account_Number" /&gt; &lt;asp:BoundField HeaderText="Description" DataField="Description"/&gt; &lt;asp:BoundField HeaderText="Amount" DataField="Amount"/&gt; &lt;asp:BoundField HeaderText="Offset Account" DataField="OffsetAccount" /&gt; &lt;asp:BoundField HeaderText="File Name" DataField="FileName" /&gt; &lt;asp:BoundField HeaderText="Transaction Type" DataField="TransType" /&gt; &lt;asp:TemplateField ShowHeader="False"&gt; &lt;ItemTemplate&gt; &lt;asp:Button ID="btnAdd" runat="server" CausesValidation="false" OnClientClick="showPopUp('pupAddAcc');" Text="Add Account" CssClass="ButtonStyle_Gray" /&gt; &lt;asp:ModalPopupExtender ID="mpeAddAcc" runat="server" BackgroundCssClass="modalBackground" TargetControlID="btnAdd" PopupControlID="pnlAddAcc" CancelControlID="btnCancelAddAcc" DropShadow="True" Enabled="True"&gt; &lt;/asp:ModalPopupExtender&gt; &lt;div id="pupAddAcc"&gt; &lt;asp:Panel ID="pnlAddAcc" runat="server" BackColor="White" BorderColor="White" BorderStyle="Solid" BorderWidth="1px" Width="430"&gt; &lt;table align="center" id="tblAddAcc" class="BasicHTMLTable"&gt; &lt;asp:HiddenField ID="hfTransType" runat="server" Value='&lt;%# Bind("TransType") %&gt;' /&gt; &lt;tr align="center" &gt; &lt;td colspan="2"&gt; &lt;asp:Label ID="lblAccountHeader" runat="server" width="390px" Text="Add Account" CssClass="ButtonStyle_Orange" Height="25px" Font-Bold="true" Font-Size="Large" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td align="right" class="PopupCol"&gt;Account Number&lt;/td&gt; &lt;td align="left" &gt;&lt;asp:Label ID="lblAccNumber" runat="server" Width="165px" Text='&lt;%# Bind("Account_Number") %&gt;' /&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td align="right" class="PopupCol" &gt;Name&lt;/td&gt; &lt;td align="left" &gt;&lt;asp:TextBox ID="txtName" runat="server" Width="165px" /&gt; &lt;asp:RequiredFieldValidator ID="rfvName" runat="server" ControlToValidate="txtName" Text="*" ValidationGroup="acc" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td align="right" class="PopupCol" &gt;Search Name&lt;/td&gt; &lt;td align="left" &gt;&lt;asp:TextBox ID="txtSearchName" runat="server" Width="165px" /&gt; &lt;asp:RequiredFieldValidator ID="rfvSName" runat="server" ControlToValidate="txtSearchName" Text="*" ValidationGroup="acc" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td align="right" class="PopupCol" &gt;Group&lt;/td&gt; &lt;td align="left" &gt; &lt;asp:DropDownList ID="ddlGroup" runat="server" Width="170"&gt; &lt;/asp:DropDownList&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td align="right" class="PopupCol" &gt;Currency&lt;/td&gt; &lt;td align="left" &gt; &lt;asp:DropDownList ID="ddlCurrency" runat="server" Width="170px"&gt; &lt;/asp:DropDownList&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td align="center" colspan="2"&gt; &lt;asp:Button ID="btnAddAcc" runat="server" Text="Add Account" CssClass="ButtonStyle_Orange" OnClientClick="javascript:addAccount()" ValidationGroup="acc" /&gt; &amp;nbsp&amp;nbsp &lt;asp:Button ID="btnCancelAddAcc" runat="server" Text="Cancel" CssClass="ButtonStyle_Orange" /&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/asp:Panel&gt; &lt;/div&gt; &lt;/ItemTemplate&gt; &lt;/asp:TemplateField&gt; &lt;asp:BoundField HeaderText="RecId" DataField="RecId" Visible="False"/&gt; &lt;/Columns&gt; </code></pre> <p></p> <p>I open the popup with this JavaScript function:</p> <pre><code>function showPopUp(p) { var Popup = document.getElementById(p); Popup.style.visibility = "visible"; Popup.style.display = ""; } </code></pre> <p>The function when btnAddAcc is clicked:</p> <pre><code>function addAccount() { _doPostBack('btnAddAcc', ''); }; </code></pre> <p>The code behind function</p> <pre><code>Protected Sub btnAddAcc_Click(sender As Object, e As System.EventArgs) 'Code for inserting new account goes here End Sub </code></pre> <p>Thank you in advance for any help and proposals. Regards</p>
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