Setting Selected Values On MultiSelectList C#
Jan 11, 2011
I'm working with a simple MultiSelectList on C#.
I just want to populate this MultiSelectList with some string values (not a pair such as <"Key", "Value"> just <"Value">) and set some selected items.
Here's my code:
IEnumerable<string> ubicaciones = new string[] { "NEGOCIOS", "TERRITORIOS",
"LOCALIDADES" };
IEnumerable<string> ubicacionesSelected = Ubicaciones.Split(',');
UbicacionesPermitidas = new MultiSelectList(ubicaciones, ubicacionesSelected);
IEnumerable<string> transacciones = new string[] { "CARGA: ACCESORIOS",
"CARGA: EQUIPOS", "ASIGNACIONES", "DESINCORPORACIONES",
"PRÉSTAMOS", "TRASLADOS", "SALIDAS" };
IEnumerable<string> transaccionesSelected = Transacciones.Split(',');
TransaccionesPermitidas = new MultiSelectList(transacciones,
transaccionesSelected);
However, is not working... (it shows all the values on the MultiSelectList but it doesn't show any item selected) what am I missing
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When I run this page I get
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 222:
Line 223: Sub DISPLAY_CATEGORY()
Line 224: ddlCatogory1st1.DataBind()
Line 225: ddlCatogory1st1.Items.FindByValue("A10").Selected = True
Line 226: End Sub
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<SelectedItemStyle CssClass="SelectedRowStyle" />
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[Code]....
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