C# winform textbox, I have a textbox and want to enter decimals

[Booney440]

C# winform textbox, I have a textbox and want to enter decimals like .2 or .7.
I keep getting System.FormatException: 'Input string was not in a correct format.

private void tb_Percentage_TextChanged(object sender, EventArgs e)
{

for (int i = 0; i < dataGridView1.Rows.Count; i++)

{
DataGridViewRow row = dataGridView1.Rows;

decimal d = Convert.ToDecimal(dataGridView1.Rows.Cells[31].Value);
// tb_Percentage.Text = string.Format("{0:C2}", Convert.ToInt32(tb_Percentage.Text));
decimal E = decimal.Parse(tb_Percentage.Text);
decimal f = d * E;
dataGridView1.Rows.Cells[32].Value = f.ToString("#.00");

}
}




Booney440

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