[ArgumentOutOfRangeException: “txb_pos”有一个无效 SelectedValue,因为它不在项目列表中。
参数名: value]
System.Web.UI.WebControls.ListControl.PerformDataBinding(IEnumerable dataSource) +1324
System.Web.UI.WebControls.ListControl.OnDataBinding(EventArgs e) +384
System.Web.UI.WebControls.ListControl.PerformSelect() +43
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +134
System.Web.UI.WebControls.ListControl.OnPreRender(EventArgs e) +36
System.Web.UI.Control.PreRenderRecursiveInternal() +162
System.Web.UI.Control.PreRenderRecursiveInternal() +256
System.Web.UI.Control.PreRenderRecursiveInternal() +256
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6875
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