C# Validation

Question

i am using this codes to separate masked textbox values then put a validation where hour can only contain 0 to 23 while minute is 0 to 59. But still this doesn't work.

string text = maskedTextBox1.Text;

string[] parts = text.Split(':');

try

{

var hour = Convert.ToInt32(parts[0]);

var minute = Convert.ToInt32(parts[1]);

if (hour > 23 || minute >59)

SendKeys.Send("{BACKSPACE}");

else

if ((maskedTextBox1.Text.Length == 2) && (string.IsNullOrEmpty(maskedTextBox1.Text)))

maskedTextBox1.Focus();

}

catch (Exception ex)

{

}

Help please :)

Vulpes · Answer

Try this instead: string text = maskedTextBox1.Text; string[] parts = text.Split(':'); try { int hour minute; bool hourValid = int.TryParse(parts[0] out hour); bool minuteValid = int.TryParse(parts[1] out minute); if (!hourValid || hour 23 || !minuteValid || minute 59) { maskedTextBox1.Focus(); SendKeys.Send({BACKSPACE}); } } catch (Exception) { maskedTextBox1.Focus(); }