An ASP.NET DataGrid with AutoFilter not working !!!!

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dear sirs
i was trying the following

An ASP.NET DataGrid with AutoFilter[^]

the auto filter appears but never worked , whatever i choose any item to filter on it
i got ArgumentOutOfRangeException

i found that ArrayList list which used in the OnItemDataBound is became empty when the RaisePostBackEvent is called

System.ArgumentOutOfRangeException was unhandled by user code
Message=Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
Source=mscorlib
ParamName=index
StackTrace:
at System.Collections.ArrayList.get_Item(Int32 index)
at DataGridAF.DataGridAutoFilter.RaisePostBackEvent(String eventArgument) in C:\Users\admin\Desktop\dwn\DataGridAF\DataGridAutoFilter.cs:line 143
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Posted 20-Dec-12 10:07am

AhmedOsamaMoh

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Indul Hassan · Answer 1 · 2012-12-20T10:19:00

It the easy way but something like this should work

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindGrid();
}
}

protected void UpdateFilter(object sender, EventArgs e)
{
BindGrid();
}

private void BindGrid()
{
DataTable dt = new DataTable();
//...
dt.DefaultView.RowFilter = "SomeColumnInTheDataTable = '" + SearchText.Text + "'";
gvProjList.DataSource = dt.DefaultView;
gvProjList.DataBind();
}