示例#1
0
        private void MultiplyTableButton_Click(object sender, EventArgs e)
        {
            TableRichTextBox.Clear();
            float number = 0f;

            if (NumberTableTextBox.Text.Trim() == string.Empty)
            {
                MessageBox.Show("Please enter any number to calculate Table", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            try
            {
                number = Convert.ToSingle(NumberTableTextBox.Text);
            }
            catch
            {
                MessageBox.Show("Invalid Number", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            for (int i = 1; i <= 10; i++)
            {
                TableRichTextBox.Text += number + " * " + i + " = " + number * i + "\n";
            }
        }
示例#2
0
 private void ResetTableButton_Click(object sender, EventArgs e)
 {
     TableRichTextBox.Clear();
     NumberTableTextBox.Clear();
     NumberTableTextBox.Focus();
 }