Remove selectd Rows in a Datagridview using Checkbox not working..

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Hi all,
I am using checkboxes inside Datagridview to select rows. While checking the value of checkbox its returning true, but I am trying to remove selected rows means its not working for some rows. Please see the codes I used.Please help me..

C#

private void BtnFill_Click(object sender, EventArgs e)
{
    for (int i = 1; i < 11; i++)
    {
        Dgv.Rows.Add(true, i, "name");
    }
}

private void BtnGet_Click(object sender, EventArgs e)
{
    string line = "Sl.No. "+ " ===== " + " Value " + "=====" + "EditedFormatedValue" + "\n";

    foreach (DataGridViewRow row in Dgv.Rows)
    {
        line += row.Cells[1].Value.ToString() + " ===== " + Convert.ToBoolean(row.Cells[0].Value) + "=====" + Convert.ToBoolean(row.Cells[0].EditedFormattedValue) + "\n";

    }
    MessageBox.Show(line);
}

private void button1_Click(object sender, EventArgs e)
{
    foreach (DataGridViewRow row in Dgv.Rows)
    {
        if (Convert.ToBoolean(row.Cells[0].Value))
        {
            Dgv.Rows.Remove(row);
        }

    }
    Dgv.Update(); Dgv.Refresh();
}

Thanks in Advance..

Posted 8-Oct-14 18:44pm

Manu Prasad

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lukaszbl · Accepted Answer · 2014-10-08T21:34:00

Solution 1

You are modifying collection from which you are deleting, try following in button1_Click:

C#

List<DataGridViewRow> rowsToRemove = new List<DataGridViewRow>();
foreach (DataGridViewRow row in Dgv.Rows)
{
    if (Convert.ToBoolean(row.Cells[0].Value))
    {
        rowsToRemove.Add(row);
    }
}
rowsToRemove.ForEach(row => Dgv.Rows.Remove(row));

Posted 8-Oct-14 21:34pm

lukaszbl

Updated 9-Oct-14 7:25am

v2

Comments

Manu Prasad 9-Oct-14 5:05am

Thanks!!!!