| private IsValidCharacter ( char character ) : bool | ||
| character | char | The character being input |
| return | bool | |
internal bool IsValidCharacter(char character)
{
if (BoProp == null) return true;
if (TextBoxControl == null) return true;
if (BoProp.PropertyType.IsInteger())
{
if ((character < '0' || character > '9') && character != 8 && character != '-')
{
return false;
}
if (character == '-' && TextBoxControl.SelectionStart != 0)
{
return false;
}
}
else if (BoProp.PropertyType.IsDecimal())
{
if ((character < '0' || character > '9') && character != '.' && character != 8 && character != '-')
{
return false;
}
if (character == '.' && TextBoxControl.Text.Contains("."))
{
return false;
}
// In fact the char is valid, but we want the event to get handled in order to prevent double dots
if (character == '.' && TextBoxControl.SelectionStart == 0)
{
TextBoxControl.Text = "0." + TextBoxControl.Text;
TextBoxControl.SelectionStart = 2;
TextBoxControl.SelectionLength = 0;
return false;
}
if (character == '-' && TextBoxControl.SelectionStart != 0)
{
return false;
}
}
return true;
}
}