[ArgumentOutOfRangeException: 'drpNganhNghe' has a SelectedValue which is invalid because it does not exist in the list of items.
Parameter name: value]
System.Web.UI.WebControls.ListControl.PerformDataBinding(IEnumerable dataSource) +2738325
System.Web.UI.WebControls.ListControl.PerformSelect() +49
Bambu.oData.BindDataDropList(String sSQL, DropDownList drp) +89
tuyendungvn.nguoitimviec.LoadMain() +79
System.Web.UI.Control.OnLoad(EventArgs e) +132
System.Web.UI.Control.LoadRecursive() +66
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2428
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