how to get selected values of one grid to another grid in same winform

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hello frens,
i have a problem while doing this code.
here i want to select multiple values of first grid but one by one. as soon i select the values from one grid, it should disappear from first grid and seen in second grid, i have this code which shows only one data in second grid as everytime a new datatable is created but cannot get all the selected rows in second grid please help ...
the code i have written is like this...

C#

private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
       {
           foreach (DataGridViewRow r in dataGridView1.SelectedRows)
           {
               int stdid = Convert.ToInt32(dataGridView1.CurrentRow.Cells[0].Value.ToString());
               string stdname = dataGridView1.CurrentRow.Cells[1].Value.ToString();

               dataGridView1.Rows.Remove(r);

               //now adding the datas into second datagridview by adding new row each time
               //first creating the column and adding new row each time


               DataTable dt = new DataTable();
               dt.Columns.Add("Student ID");
               dt.Columns.Add("Roll Number");
               dt.Columns.Add("Student Names");
               DataRow dr;
               dr = dt.NewRow();
               int i = 1;
               dr[0] = stdid;
               dr[1] = i;
               dr[2] = stdname;
               dt.Rows.Add(dr);
               i++;
               this.dataGridView2.DataSource = dt;

           }

       }

Posted 20-Jun-12 6:07am

bishnuk

Updated 20-Jun-12 6:10am

Wes Aday

v2

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[no name] 20-Jun-12 12:12pm

You are creating a new datatable on each iteration through your foreach.

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Sameer Alomari · Answer 1 · 2012-06-20T06:24:00

Don't create a new DataTable for the second grid everytime you select a row on the first grid.
in the form load, create your DataTable and columns for the second grid, something like this:

C#

private DataTable SecondDataTable = new DataTable();

private void MainForm_Load(System.Object sender, System.EventArgs e)
{
    SecondDataTable.Columns.Add("Student ID");
    SecondDataTable.Columns.Add("Roll Number");
    SecondDataTable.Columns.Add("Student Names");
}

private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
foreach (DataGridViewRow r in dataGridView1.SelectedRows)
{
int stdid = Convert.ToInt32(dataGridView1.CurrentRow.Cells[0].Value.ToString());
string stdname = dataGridView1.CurrentRow.Cells[1].Value.ToString();
 
dataGridView1.Rows.Remove(r);
 
//now adding the datas into second datagridview by adding new row each time
DataRow dr;
dr = SecondDataTable.NewRow();
int i = 1;
dr[0] = stdid;
dr[1] = i;
dr[2] = stdname;
SecondDataTable.Rows.Add(dr);
i++;
this.dataGridView2.DataSource = SecondDataTable;

} 

}