How to add value to a datagridview column....

hi

i have one grid with 2 datasets, the grid displays rows from 2 datasets, and i want my new column in my grid to add text to all rows added from dataset2.....

how can i only add a text to rows added from dataset2...? and not ALL rows displayed in the grid....?!

private void Reset()
        {
            
            gridImports.AutoGenerateColumns = false;
            DataSet myDsFilesToUndo = AmEngine.Instance.GetUnreconciledImpFiles(myOperator);
            DataSet importedReconsiledfiles = AmEngine.Instance.GetReconciledImpFiles(myOperator);
            
            int test = myDsFilesToUndo.Tables[0].Rows.Count;
            int test1 = importedReconsiledfiles.Tables[0].Rows.Count;
 
            myDsFilesToUndo.Merge(importedReconsiledfiles);
 
            gridImports.Columns[0].Name = "Reconsiled";
 
 
         
            
            gridImports.DataSource = myDsFilesToUndo.Tables[0];
 
}

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