search with upper and lower case letters

Question

I want to make a search in a datagrid with the text "Modele" but it takes only the upper case or lower case according to the text to search. i want that it show me the "Modele" regardless of upper or lower case.

This is what i try:

  private void textBox_model_TextChanged(object sender, EventArgs e)
{

    string searchValue = textBox_model.Text;

    for (int u = 0; u < dataGridView_Articles.RowCount; u++)
    {
        if (dataGridView_Articles.Rows[u].Cells[5].Value.ToString().Contains(searchValue))
        {
            dataGridView_Articles.Rows[u].Visible = true;
        }
        else
        {
            dataGridView_Articles.Rows[u].Visible = false;
        }
    }            
}

score 0 · Answer 1 · answered Mar 28 '18 at 08:55

0

Just change this:

string searchValue = textBox_model.Text;

to this:

string searchValue = textBox_model.Text.ToLower();

answered Mar 28 '18 at 08:55

Rob

11,492
14
59
94

Seems rather inefficient. – Patrick Hofman Mar 28 '18 at 08:56
And incorrect in some locales: https://haacked.com/archive/2012/07/05/turkish-i-problem-and-why-you-should-care.aspx/ – heijp06 Mar 28 '18 at 09:05

search with upper and lower case letters

1 Answers1