float number in masked textbox

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hi i have a masked textbox and put it in numeric 5digits. i've writen float number on its mask as ___.__!
but my problem is how can i check it as a float number? for example, i want if my entrance number is higher than 102.00, show me an error, in a message box.

float a;
if(a>=102.00)
{
messagebox.showdialog("Error","");
}
-----------------------------
"a" is the value of in masked textbox!

Posted 13-Oct-13 22:16pm

mohsenvasefi

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3 solutions

Solution 1

You can use TryParse to try and parse the entered value. This prevents exceptions to be raised and will also convert the value from string. Check out this link:
String textValue = TextBox1.Text;[^]

Good luck!

Posted 13-Oct-13 22:43pm

E.F. Nijboer

Comments

mohsenvasefi 14-Oct-13 4:53am

i have a button. if pressed it, the value in masked textbox(as float number) must be compare with a constant value(like 102.00). if condition is true, do!
it can't compare the value on masked textbox by 102.00! :(

Solution 4

SQL

i can use as following:
Collapse | Copy Code

double f = Convert.ToDouble(maskedTextBox6.Text);
            if (f > 102.00)
            {
            MessageBox.Show("Err", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            serialPort1.WriteLine(maskedTextBox6.Text);

Posted 14-Oct-13 0:32am

mohsenvasefi

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mohsenvasefi · Accepted Answer · 2013-10-14T00:21:00

Solution 3

i can use as following:

C#

double f = Convert.ToDouble(maskedTextBox6.Text);
            if (f > 102.00)
            {
            MessageBox.Show("Err", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            serialPort1.WriteLine(maskedTextBox6.Text);

Posted 14-Oct-13 0:21am

mohsenvasefi

Comments

BillWoodruff 14-Oct-13 7:40am

If this not a "solution," but a progress report, then please add this to your original question. However, if you believe this does solve your problem, then fine.