我放了5个TEXT...
都有一个KeyPress事件..限制他们只能输入数字
想写个方法
private void bound()
{
if (e.KeyChar >= '0' && e.KeyChar <= '9')
e.Handled = false;
else
e.Handled = true;
}让他们都调用这个方法。但提示不存在e..怎么解决呢。谢谢。
都有一个KeyPress事件..限制他们只能输入数字
想写个方法
private void bound()
{
if (e.KeyChar >= '0' && e.KeyChar <= '9')
e.Handled = false;
else
e.Handled = true;
}让他们都调用这个方法。但提示不存在e..怎么解决呢。谢谢。
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (!(char.IsDigit(e.KeyChar) || char.IsControl(e.KeyChar)))
{
e.Handled = true;
}
}
private void txtGate_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar >= '0' && e.KeyChar <= '9')
e.Handled = false;
else
e.Handled = true; }
private void bound(KeyPressEventArgs e)
{
if (e.KeyChar >= '0' && e.KeyChar <= '9')
e.Handled = false;
else
e.Handled = true;
} 然后再KeyPress事件里调用:Bound(e);
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (!(char.IsDigit(e.KeyChar) || char.IsControl(e.KeyChar)))
{
e.Handled = true;
}
}
{
if (e.KeyChar >= '0' && e.KeyChar <= '9')
e.Handled = false;
else
e.Handled = true;
} )