GridView Cell Format

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Hi, in gridview i want few columns should accept only numbers 0to9 and decimal point. and few columns should accept only letters a to z.
I tried with keypress event but not working...

Posted 30-Nov-10 19:19pm

krishna kishore58

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Hiren solanki 1-Dec-10 1:36am

use OnChange Javascript event either.

Jason C Daniels 17-Jan-11 0:42am

Are you using Winforms?

2 solutions

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jagadishvarma · Answer 1 · 2011-07-24T23:42:00

<pre lang="cs">private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
if (e.RowIndex != -1)
{
if (e.ColumnIndex == 0 && dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString().Length > 0)
{
Regex objAlphaPattern = new Regex("[*a-zA-Z]");
if (objAlphaPattern.IsMatch(dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString()))
{
}
else
{
MessageBox.Show("Only Alphabet Value");
dataGridView1.Columns[e.ColumnIndex].Selected = false;
dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = "";

}
}
else if (e.ColumnIndex == 1 && dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString().Length > 0 )
{
decimal number;
if (Decimal.TryParse(dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString(), out number)) {
}
else
{
MessageBox.Show("Only Decimal Value");
dataGridView1.Columns[e.ColumnIndex].Selected = false;
dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = "";
}
}
}
}</pre>

Theingi Win · Answer 2 · 2011-01-16T19:21:00

First you create gridview contain two columns .One for letters/alphaber test and another one is number/decimal test. After two columns created , you write following code in CellValueChanged event.

C#

private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex != -1)
            {
                if (e.ColumnIndex == 0 && dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString().Length > 0)
                {
                    Regex objAlphaPattern = new Regex("[*a-zA-Z]");
                    if (objAlphaPattern.IsMatch(dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString()))
                    {
                    }
                    else
                    {
                        MessageBox.Show("Only Alphabet Value");
                        dataGridView1.Columns[e.ColumnIndex].Selected = false;
                        dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = "";

                    }
                }
                else if (e.ColumnIndex == 1 && dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString().Length > 0 )
                {
                    decimal number;
                    if (Decimal.TryParse(dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString(), out number)) {
                    }
                    else
                    {
                        MessageBox.Show("Only Decimal Value");
                        dataGridView1.Columns[e.ColumnIndex].Selected = false;
                        dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = "";
                    }
                }
            }
        }

And then you can test.

Best Regard

Theingi Win

GridView Cell Format

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