vb.net - Error : Property is Read only? -

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i have binding source entity :

mybindingsource.datasource = _             (from t in context.mytable select t.id , t.vl1 , t.vl2).tolist

now , try change value :

mybindingsource.current.vl1 = 25

i error :

an unhandled exception of type 'system.missingmemberexception' occurred in microsoft.visualbasic.dll

additional information: property 'vl1' readonly.

why error ? can ?

thank !


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