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POListView with TextBoxes in UpdatePanel does not return values after OnTextChanged
 

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  1. POListView with TextBoxes in UpdatePanel does not return values after OnTextChanged
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    <p>I have a <strong>ListView</strong> with <strong>TextBoxes</strong> in it. When I enter a value in the TextBox A I want a calculated value to show up in TextBox B. I am doing this in the CodeBehind. This works well until I place the ListView in an <strong>UpdatePanel</strong>.</p> <p>On the <strong>OnTextChanged</strong> I would like to do some calculations/database actions (In the example beneath I just multiply the inserted value by 2). Since I do not want to do a complete <strong>PostBack</strong> everytime I enter a value, I inserted an UpdatePanel. Also because I want to stay on the same scroll position.</p> <p><strong>The first time</strong> I enter a value the OnTextChanged method does everything as it should, but <strong>the second time</strong> the UpdatePanel seems to remove all calculated values and only returns the first inserted value.</p> <p>In Debug mode everything works well, also in IE8, but not in FireFox,Chrome or IE9. I assume I am not using the UpdatePanel as I should be?</p> <p>aspx page:</p> <pre><code>&lt;%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Testing.aspx.cs" Inherits="Sales_NewOrderPOS" ClientIDMode="AutoID"%&gt; &lt;asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" Runat="Server"&gt; &lt;/asp:Content&gt; &lt;asp:Content ID="Content2" ContentPlaceHolderID="MainContent" Runat="Server"&gt; &lt;asp:ScriptManager ID="ScriptManager1" runat="server"&gt; &lt;/asp:ScriptManager&gt; &lt;asp:UpdatePanel ID="UpdatePanel1" runat="server"&gt; &lt;ContentTemplate&gt; &lt;asp:ListView ID="ListView1" runat="server" DataSourceID="ObjectDataSource1"&gt; &lt;LayoutTemplate&gt; &lt;table&gt; &lt;asp:PlaceHolder runat="server" ID="itemPlaceholder"&gt;&lt;/asp:PlaceHolder&gt; &lt;/table&gt; &lt;/LayoutTemplate&gt; &lt;ItemTemplate&gt; &lt;tr&gt; &lt;td&gt; &lt;asp:Label ID="lblItemNo" Text='&lt;%# Eval("ItemNo") %&gt;' runat="server"&gt;&lt;/asp:Label&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:Label ID="lblItemDecription" Text='&lt;%# Eval("ItemDescription") %&gt;' runat="server"&gt;&lt;/asp:Label&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="txtPalletQuantity" runat="server" Width="30px" OnTextChanged="TextChangedPallet" AutoPostBack="true" &gt;&lt;/asp:TextBox&gt; &lt;/td&gt; &lt;td&gt; &lt;asp:TextBox ID="txtUnitQuantity" runat="server" Width="30px"&gt;&lt;/asp:TextBox&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/ItemTemplate&gt; &lt;/asp:ListView&gt; &lt;/ContentTemplate&gt; &lt;/asp:UpdatePanel&gt; &lt;asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="SP_SelectItems" TypeName="ItemClass"&gt; &lt;/asp:ObjectDataSource&gt; &lt;/asp:Content&gt; </code></pre> <p>Code Behind:</p> <pre><code>protected void Page_Load(object sender, EventArgs e) { } protected void TextChangedPallet(object sender, EventArgs e) { TextBox txtPalletQuantity = (TextBox)sender; ListViewItem item = (ListViewItem)txtPalletQuantity.NamingContainer; TextBox txtUnitQuantity = (TextBox)item.FindControl("txtUnitQuantity"); txtUnitQuantity.Text = ((Convert.ToDecimal(txtPalletQuantity.Text) * 2)).ToString(); } </code></pre>
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    1. PTQuestion
    1. USbart_dp
    1. USbart_dp
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    1. COJust a quick guess, try putting the ObjectDataSource1 inside the UpdatePanel
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      1. POListView with TextBoxes in UpdatePanel does not return values after OnTextChanged
      1. USMVCKarl
    2. COTried it before, but it doesn't help.
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      1. POListView with TextBoxes in UpdatePanel does not return values after OnTextChanged
      1. USbart_dp
 

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