Web Forms :: If Try Using <asp:LinkButton> Can't See Anything On The Actual Page?
May 6, 2010
I have a basic webform (method="POST") which I would like to "hide" in codebehind by using <asp:LinkButton> and using the OnClick-value to generate the form in C# & doing the http-request. So basically the form looks like this:
[Code]....
Now what I want is to have something like this:
[Code]....
Now my problem is that if i use the normal <form> it displays correctly and works correctly but if I try using <asp:LinkButton> I can't see anything on the actual page.
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<PagerStyle HorizontalAlign="Right" CssClass="paging"/>
<PagerTemplate>
<table width="100%">
<tr>
<td style="text-align:left; width:50%">
<asp:LinkButton ID="lnkPrv" Visible="false" CommandName="Page" CommandArgument="Prev" runat="server">Previous</asp:LinkButton>
</td>
<td style="text-align:right; width:50%;padding-left:50%;">
<asp:LinkButton ID="lnkNext" CommandName="Page" CommandArgument="Next" runat="server">Next</asp:LinkButton>
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Code behind is below
protected void gvProduct_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
Literal1.Visible = gvProduct.PageIndex == 0;
LinkButton lnkPrv = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkPrv");
LinkButton lnkNext = (LinkButton)gvProduct.BottomPagerRow.FindControl("lnkNext");
lnkPrv.Visible = e.NewPageIndex > 0;
lnkNext.Visible = e.NewPageIndex < gvProduct.PageCount - 1;
gvProduct.PageIndex = e.NewPageIndex;
FillGrid();
}
The code does not give any error. I can see it set the visible property to true/false. But actual control on page remain same (always visible on every page).
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<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder ID="Header" runat="server">
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</body>
But I get following error
Content controls have to be top-level controls in a content page or a nested master page that references a master page.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Content controls have to be top-level controls in a content page or a nested master page that references a master page.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[HttpException (0x80004005): Content controls have to be top-level controls in a content page or a nested master page that references a master page.]
System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +8836686
System.Web.UI.Page.get_Master() +54
System.Web.UI.Page.ApplyMasterPage() +15
System.Web.UI.Page.PerformPreInit() +45
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +328
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[CODE]
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[Code]....
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[Code]....
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[Code]....
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[code]....
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[Code]....
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[Code]....
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