Question

I have a datagridview with 1 column with some rows. I want to do :
When an user write a value in TextBox, if that value already exists in datagridview, I want to select the row which contains that TextInput value

How to do that ?
I’m going to use like this :

dataGridView1.CurrentCell = dataGridView1[0, index];

But I don’t know how to find the index using TextBox value.

Answer 1

You could loop through the rows until you find one that matches the value of the textbox:

foreach (DataGridViewRow row in dataGridView1.Rows)
{
    // Test if the first column of the current row equals
    // the value in the text box
    if ((string)row.Cells[0].Value == textBox1.Text)
    {
        // we have a match
        row.Selected = true;
    }
    else
    {
        row.Selected = false;
    }
}