[RESOLVED] Specified Cast Is not valid

[Waseemalisyed]

when we run this code with Debug.WriteLine Generate No error
when we run this code with dReader.GetValue/GetString Generate Error Specified Cast Is not valid In Database field datatype also Varchar

public string GetID(string strQuery)
{
SqlDataReader dReader=null;
string RCode="";
try
{
dReader = FillDataReader(strQuery,dReader);
if (dReader.Read())
{
//Debug.WriteLine(dReader.GetValue(0));
RCode = (string)dReader.GetValue(0);
return RCode;
}
}


}