searching in datagridview and filtering it

Question

i have a question regarding with this code, i use a bindingsource to show the data and this code only select the row when im searching in datagridview. i want to know how can i filter the data im searching.

 private void button1_Click(object sender, EventArgs e)
    {
        string searchValue = textBox1.Text;

         dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;

         try
         {
             foreach (DataGridViewRow row in dataGridView1.Rows)
             {
                 if (row.Cells[2].Value.ToString().Equals(searchValue))
                 {

                     row.Selected = true;
                     break;

                 }
             }
         }
         catch (Exception exc)
         {
             MessageBox.Show(exc.Message);
         }
    }

Answer 1

if you want to display only the filtered rows use BindingSource.Filter property. Here is a good sample in MSDN

bindingSource.Filter = "columnname = 'value'";

private void button1_Click(object sender, EventArgs e)
{
    string searchValue = textBox1.Text;

     dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
     bindingSource.Filter = string.Format("{0} = '{1}'","YourColumnName", searchValue );
     //here you can do selection if you need
}

---

To remove filter use the following

bindingSource.RemoveFilter();

or

bindingSource.Filter = null;

Answer 2

Without changing that much your code, you could set the row.Visible property to false instead of just changing row.Selected . Anyway, the answer above is more performant and clean, you should try that.