Error occur when Add a DataRow[] into a DataTable
Dear Programer,
I kept received the error message "Object reference not set to an instance of an object", pls help!!! :(
I added "//error occur" in the line. Thanks a lot!
DataTable* selectedTable = new DataTable();
selectedTable = this->localDB->Tables->Item[S"BusinessCard"]->Clone();
selectedTable = localDB->Tables->Item[S"SelectedTable"];
DataRow* selectedRow[];
selectedRow = this->localDB->Tables->Item[S"BusinessCard"]->Select("Industry='Education'", "Index Desc");
for (int i=0; i<selectedRow->Length; i++)
{
selectedRow[i] = localDB->Tables->Item[S"selectedTable"]->NewRow(); //error occur
localDB->Tables->Item[S"selectedTable"]->Rows->Add(selectedRow[i]); //error occur
}
this->dataGrid1->DataSource = this->localDB;
this->dataGrid1->DataMember = S"SelectedTable";
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