dotnet/Documentation/compatibility/gridviews-with-allowcustompaging-set-to-true-may-fire-the-pageindexchanging-event-when-leaving-the-final-page-of-the-view.md

GridViews with AllowCustomPaging set to true may fire the PageIndexChanging event when leaving the final page of the view

Scope

Minor

Version Introduced

4.5

Version Reverted

4.6

Source Analyzer Status

Planned

Change Description

A bug in the .NET Framework 4.5 causes xref:System.Web.UI.WebControls.GridView.PageIndexChanging?displayProperty=name to sometimes not fire for xref:System.Web.UI.WebControls.GridView?displayProperty=names that have enabled xref:System.Web.UI.WebControls.GridView.AllowCustomPaging?displayProperty=name.

• Quirked
• Build-time break

Recommended Action

This issue has been fixed in the .NET Framework 4.6 and may be addressed by upgrading to that version of the .NET Framework. As a work-around, the app can do an explicit BindGrid on any Page_Load that would hit these conditions (the xref:System.Web.UI.WebControls.GridView?displayProperty=name is on the last page and Lastxref:System.Web.UI.WebControls.GridView.PageSize?displayProperty=name is different from xref:System.Web.UI.WebControls.GridView.PageSize?displayProperty=name). Alternatively, the app can be modified to allow paging (instead of custom paging), as that scenario does not demonstrate the problem.

Affected APIs

• P:System.Web.UI.WebControls.GridView.AllowCustomPaging

Category

ASP.NET

More information