控件数据绑定时无法在DataGridView中以编程方式添加行

Question

In my DatagridView already have data, then i want to add new row when click add button in windows form i got "Rows cannot add programmatically to the datagridview row collection when in the controls data-bound.

Then i google it i got some answer like you can use DataTable to add a new row, below code i used

Then, i tried to run,

in my datagrid shows rows added but with blank values for all rows like a empty row

kindly suggest me where i'm wrong i'm new at windows application datagridview with c#

DataTable dataTable=new DataTable();

 foreach (DataGridViewColumn col in dataGridView.Columns)
 {
     dataTable.Column.add(col.Name);
 }
 foreach (dataGridViewRow row in dataGridView.Rows)
 {
     DataRow drow=dataTable.NewRow();
     foreach (DataGridViewCell cell in row.cells)
     {
        drow[cell.ColumnIndes]=cell.value;
        dataTable.Rows.add(drow);
     }
 }
   //then,
   //i assigned dataTable values to dataGridView

   dataGridView.DataSource=dataTable;
 }

Answer 1

I couldn't get why you do all of these things. You said you have data in your dataGridView, Mean you have already set headers of the dataGridView and you just want to add new row while clicking on the button. If my perception is right then you just do the below thing on button click event.

dataGridView1.Rows.Add("Column1", "Column2",..);