[InvalidCastException: 指定的转换无效。]
System.Data.OleDb.ColumnBinding.ValueString() +307
catlist.Page_Load(Object sender, EventArgs e) in d:\risesun\catlist.aspx.cs:160
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
System.Web.UI.Control.OnLoad(EventArgs e) +137
System.Web.UI.Control.LoadRecursive() +98
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2524
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