private void InputLimit(TextBox tBox, KeyPressEventArgs e, InputMod inputMod)
{
string strStart, strEnd;
int data;
e.Handled = false;
if (e.KeyChar == '\b')
{
return; //'b'为退格键
}
strStart = tBox.Text.Substring(0, tBox.SelectionStart);
strEnd = tBox.Text.Substring(tBox.SelectionStart + tBox.SelectionLength, tBox.Text.Length - tBox.SelectionStart - tBox.SelectionLength);
switch (inputMod)
{
case InputMod.Int:
{
if (!Char.IsDigit(e.KeyChar) && e.KeyChar != '-')
{
e.Handled = true;
return;
}
if (!int.TryParse(strStart + e.KeyChar + strEnd, out data) && (strStart + strEnd) != "")
{
e.Handled = true;
return;
}
break;
}
case InputMod.UInt:
{
if (!Char.IsDigit(e.KeyChar))
{
e.Handled = true;
return;
}
break;
}
default: e.Handled = true; break;
}
}
/// <summary>
/// 输入限制
/// </summary>
static public void InputLimit(TextBox textBox, KeyPressEventArgs e, InputMod inputMod)
{
string strStart, strEnd;
e.Handled = false;
if (e.KeyChar == '\b')
{
return;
}
strStart = textBox.Text.Substring(0, textBox.SelectionStart);
strEnd = textBox.Text.Substring(textBox.SelectionStart + textBox.SelectionLength,
textBox.Text.Length - textBox.SelectionStart - textBox.SelectionLength);
switch (inputMod)
{
case InputMod.Int:
{
int data;
if (!Char.IsDigit(e.KeyChar) && e.KeyChar != '-')
{
e.Handled = true;
return;
}
if (!int.TryParse(strStart + e.KeyChar + strEnd, out data) && (strStart + strEnd) != "")
{
e.Handled = true;
return;
}
break;
}
case InputMod.UInt:
{
if (!Char.IsDigit(e.KeyChar))
{
e.Handled = true;
return;
}
break;
}
case InputMod.Float:
{
float data;
if (!Char.IsDigit(e.KeyChar) && e.KeyChar != '-' && e.KeyChar != '.')
{
e.Handled = true;
return;
}
if (!float.TryParse(strStart + e.KeyChar + strEnd, out data) &&
(strStart + strEnd) != "" &&
(strStart + e.KeyChar + strEnd) != "-.")
{
e.Handled = true;
return;
}
break;
}
case InputMod.UFloat:
{
float data;
if (!Char.IsDigit(e.KeyChar) && e.KeyChar != '.')
{
e.Handled = true;
return;
}
if (!float.TryParse(strStart + e.KeyChar + strEnd, out data) &&
(strStart + strEnd) != "")
{
e.Handled = true;
return;
}
break;
}
case InputMod.Hex:
{
if (!Char.IsDigit(e.KeyChar) &&
!(e.KeyChar >= 'a' && e.KeyChar <= 'f') &&
!(e.KeyChar >= 'A' && e.KeyChar <= 'F'))
{
e.Handled = true;
return;
}
break;
}
default: e.Handled = true; break;
}
}