Must Click Twice for Event to Fire

I have an GridView with an Select link on each line. The link brings up a modal popup for editing data. The GridView is inside an updatepanel.

Everything works great, except for some reason, I have to click the Select link twice for the event to fire. The first click does nothing...does not enter the

SelectedIndexChanged event at all.

Anyone know why?

Wanna post your HTML here so we can take a peek?

WS

Sure here you go..

<%

@.ControlLanguage="vb"AutoEventWireup="false"Codebehind="Packer.ascx.vb"Inherits="WDE.Packer" %>

<%

@.RegisterAssembly="AjaxControlToolkit"Namespace="AjaxControlToolkit"TagPrefix="ajaxToolkit" %>

<

divid="PackerUpdatePanel"><asp:UpdatePanelID="UpdatePanelPackers"runat="server"UpdateMode="Conditional"><ContentTemplate><asp:PanelID="PanelPackersHeader"runat="server"CssClass="collapsePanelHeader"Height="30px"><divstyle="padding: 5px; vertical-align: middle;"><divstyle="float: left;"><asp:LabelID="LblPackers"runat="server"Text="Packers"></asp:Label></div><divstyle="float: left; margin-left: 5px;"><asp:LabelID="LblPackersCount"runat="server"></asp:Label></div><divstyle="float: right; vertical-align: middle; cursor: hand"><asp:ImageButtonID="ImageExpand"runat="server"ImageUrl="~/images/expand_blue.jpg"/></div><divstyle="float: right; margin-right: 20px;"></div></div></asp:Panel><asp:PanelID="PanelPackersViewDetails"runat="server"Height="100%"Width="100%"Wrap="False"><tableid="border"width="100%"cellpadding="0"cellspacing="0"><tr><tdclass="addHeader"><divstyle="float: right; margin-right: 1px;cursor: hand"><asp:LinkButtonID="HyperLinkAddPacker"runat="server"OnClick="HyperLinkAddPacker_Click"ForeColor="White"CssClass="hyperlinkNoLine">Add New Packer</asp:LinkButton></div></td></tr><tr><td><asp:GridViewID="packerGrid"runat="server"CellPadding="4"DataSourceID="PackersXmlDataSource"Width="100%"ForeColor="#333333"AutoGenerateColumns="False"GridLines="None"OnSelectedIndexChanged="packerGrid_SelectedIndexChanged"><FooterStyleBackColor="#5D7B9D"Font-Bold="True"ForeColor="White"/><RowStyleBackColor="#F7F6F3"ForeColor="#333333"/><EditRowStyleBackColor="#999999"/><SelectedRowStyleBackColor="#E2DED6"Font-Bold="True"ForeColor="#333333"/><PagerStyleBackColor="#284775"ForeColor="White"HorizontalAlign="Center"/><HeaderStyleBackColor="#5D7B9D"Font-Bold="True"ForeColor="White"/><AlternatingRowStyleBackColor="White"ForeColor="#284775"/><Columns><asp:CommandFieldShowSelectButton="True"SelectText="Edit"/><asp:BoundFieldDataField="packerDate"HeaderText="Date"SortExpression="packerDate"><ItemStyleHorizontalAlign="Left"/><HeaderStyleHorizontalAlign="Left"/></asp:BoundField><asp:BoundFieldDataField="packerOperation"HeaderText="Operation"SortExpression="packerOperation"><HeaderStyleHorizontalAlign="Left"/><ItemStyleHorizontalAlign="Left"/></asp:BoundField><asp:BoundFieldDataField="packerCode"HeaderText="Code"SortExpression="packerCode"><HeaderStyleHorizontalAlign="Left"/><ItemStyleHorizontalAlign="Left"/></asp:BoundField><asp:BoundFieldDataField="packerDepth"HeaderText="Depth"SortExpression="packerDepth"><HeaderStyleHorizontalAlign="Left"/><ItemStyleHorizontalAlign="Left"/></asp:BoundField><asp:CommandFieldButtonType="Image"DeleteImageUrl="~/Images/DELETE.jpg"ShowDeleteButton="True"/></Columns></asp:GridView></td></tr></table></asp:Panel><ajaxToolkit:CollapsiblePanelExtenderID="CollapsiblePanelExtenderPackers"runat="Server"TargetControlID="PanelPackersViewDetails"ExpandControlID="ImageExpand"CollapseControlID="ImageExpand"Collapsed="True"ExpandedImage="~/images/collapse_blue.jpg"CollapsedImage="~/images/expand_blue.jpg"ImageControlID="ImageExpand"SuppressPostBack="true"/></ContentTemplate></asp:UpdatePanel>

</

div>

<

divid="PackersMaintenancePanelDiv"><asp:ButtonID="FakePackerTarget"runat="server"Style="display: none"></asp:Button><ajaxToolkit:ModalPopupExtenderID="ModalPopupAddEditPacker"runat="server"TargetControlID="FakePackerTarget"PopupControlID="PanelPackerAddEdit"BackgroundCssClass="modalBackground"DropShadow="false"CancelControlID="btnCancel"/><asp:PanelID="PanelPackerAddEdit"runat="server"Width="45%"Wrap="False"Style="display: none"BorderStyle="Solid"BorderColor="#6b8aad"><asp:UpdatePanelID="UpdatePanelPackerModalPopup"runat="server"><ContentTemplate><tableid="AddPackTable"runat="server"style="width: 100%; background-color: white;"><tr><tdcolspan="3"style="font-size: 10pt; background-color: #6b8aad; color: White"><asp:LabelID="lblPackerHeader"runat="server"Text="Packer"></asp:Label></td></tr><tr><td><asp:LabelID="lblPackerDate"runat="server"Text="Date:"Width="78px"></asp:Label><br/></td><td><asp:TextBoxID="txtPackerDate"runat="server"></asp:TextBox><spanstyle="font-size: 10pt; color: #ff0033">* </span><asp:ImageButtonID="ImageBtnCalendar"runat="server"ImageUrl="~/Images/CalendarButton.gif"/><ajaxToolkit:PopupControlExtenderID="PopupControlExtenderPackerDate"runat="server"TargetControlID="ImageBtnCalendar"PopupControlID="PanelCalendar"Position="Bottom"/><spanstyle="font-size: 10pt">(yyyymmdd)</span></td><td><asp:RequiredFieldValidatorID="RequiredFieldValidator2"runat="server"ControlToValidate="txtPackerDate"ErrorMessage="RequiredFieldValidator"Display="Dynamic">Date is required.</asp:RequiredFieldValidator></td></tr><tr><td><asp:LabelID="lblPackerOperation"runat="server"Text="Operation:"></asp:Label></td><td><asp:RadioButtonListID="rblPakerOperation"runat="server"RepeatDirection="Horizontal"><asp:ListItemSelected="True"Value="P">Pulled</asp:ListItem><asp:ListItemValue="S">Set</asp:ListItem></asp:RadioButtonList></td><td></td></tr><tr><td><asp:LabelID="lblPackerCode"runat="server"Text="Code:"></asp:Label></td><td><asp:TextBoxID="txtBoxPackerCode"runat="server"></asp:TextBox><asp:ButtonID="btnPackerCodes"runat="server"Text=".."/><ajaxToolkit:PopupControlExtenderID="PopupControlExtenderPackerCodes"runat="server"TargetControlID="btnPackerCodes"PopupControlID="PanelPackerCode"Position="Bottom"/></td><td></td></tr><tr><td><asp:LabelID="lblPackerDepth"runat="server"Text="Depth:"></asp:Label></td><td><asp:TextBoxID="txtboxPackerDepth"runat="server"MaxLength="7"></asp:TextBox>mkb<spanstyle="font-size: 10pt; color: #ff0033">*</span></td><td><asp:RequiredFieldValidatorID="RequiredFieldValidator1"runat="server"ControlToValidate="txtboxPackerDepth"ErrorMessage="RequiredFieldValidator"Display="Dynamic">Depth is required.</asp:RequiredFieldValidator></td></tr><tr><tdcolspan="3"><hr/></td></tr><tr><td><spanstyle="color: #ff0033"><spanstyle="font-size: 10pt; color: #ff0033">*</span></span>-Required</td><td></td><tdstyle="width: 100%"><asp:ButtonID="btnPackerAddOk"runat="server"Text="Ok"/><asp:ButtonID="btnCancel"runat="server"Text="Cancel"OnClick="btnCancel_Click"CausesValidation="False"/></td></tr></table></ContentTemplate></asp:UpdatePanel></asp:Panel>

</

div>

<

divid="PanelCalendarDiv"><asp:PanelID="PanelCalendar"runat="server"CssClass="popupControl"Style="z-index: 10002"><asp:UpdatePanelID="UpdatePanelCalendar"runat="server"UpdateMode="Always"><ContentTemplate><center><asp:CalendarID="Calendar1"runat="server"BackColor="White"BorderColor="#999999"CellPadding="1"DayNameFormat="Shortest"Font-Names="Verdana"Font-Size="8pt"ForeColor="Black"Width="160px"OnSelectionChanged="Calendar1_SelectionChanged"><SelectedDayStyleBackColor="#666666"Font-Bold="True"ForeColor="White"/><TodayDayStyleBackColor="#CCCCCC"ForeColor="Black"/><SelectorStyleBackColor="#CCCCCC"/><WeekendDayStyleBackColor="#FFFFCC"/><OtherMonthDayStyleForeColor="#808080"/><NextPrevStyleVerticalAlign="Bottom"/><DayHeaderStyleBackColor="#CCCCCC"Font-Bold="True"Font-Size="7pt"/><TitleStyleBackColor="#999999"Font-Size="7pt"BorderColor="Black"Font-Bold="True"/></asp:Calendar></center></ContentTemplate></asp:UpdatePanel></asp:Panel>

</

div>

<

divid="PanelPackerCodeDiv"><asp:PanelID="PanelPackerCode"runat="server"CssClass="popupControl"Style="z-index: 10003"><asp:UpdatePanelID="UpdatePanel1"runat="server"><ContentTemplate><asp:RadioButtonListID="RblPackerCodes"runat="server"OnSelectedIndexChanged="RblPackerCodes_SelectedIndexChanged"AutoPostBack="true"><asp:ListItemValue="1">1 - Packer</asp:ListItem><asp:ListItemValue="2">2 - Bridge plug or whipstock packer</asp:ListItem><asp:ListItemValue="3">3 - Cement retainer</asp:ListItem><asp:ListItemValue="4">4 - Through tubing packer</asp:ListItem><asp:ListItemValue="5">5 - Through tubing bridge plug</asp:ListItem></asp:RadioButtonList></ContentTemplate></asp:UpdatePanel></asp:Panel>

</

div>

<

asp:XmlDataSourceID="PackersXmlDataSource"runat="server"DataFile="~/XML/Packers.xml">

</

asp:XmlDataSource>

<

asp:ObjectDataSourceID="PackersObjectDataSource"runat="server"DataObjectTypeName="Packer"DeleteMethod="DeletePacker"SelectMethod="GetPackers"TypeName="WellOperation"UpdateMethod="UpdatePacker"></asp:ObjectDataSource>

I'm having the same problem and have tried for 2 weeks to resolve without success. I have converted to the RC AJAX - still same issue. I have suspected that the problem revolves around a custom user control that is on my form. It is simply an alphabet selector with 26 letters as links.

I have traced the events and on the first click, the code goes as far as the constructor code for the user control and then simply stops. But then, as Janet wrote, the second click works just fine.