Validate Date using C#
Submitted by donbermoy on Wednesday, June 4, 2014 - 19:23.
In this tutorial, i will teach you how to create a program that validates an inputted date using C#, thus this will determine if a date is invalid or not. Here, we will use the IsDate Function.
So, now let's start this tutorial!
1. Let's start with creating a Windows Form Application in C# for this tutorial by following the following steps in Microsoft Visual Studio: Go to File, click New Project, and choose Windows Application and name your project as Valid or Invalid Date.
2. Next, add only one Textbox named TextBox1. Then add a button named Button1 labeled as "Validate" for us to know that the date we have entered in our TextBox is a valid date or not. You must design your interface like this:
3. Now, put this code in Button1_Click. This will determine if the date is valid or not in our inputted textbox.
This IsDate function in Information class here checks if the given expression is a valid date and returns a boolean true or false. IsDate returns True if Expression is of the Date Data Type or can be converted to Date; otherwise, it returns False.IsDate returns True if Expression represents a valid date, a valid time, or a valid date and time.
Press F5 to run the program.
Output:
Best Regards,
Engr. Lyndon Bermoy
IT Instructor/System Developer/Android Developer/Freelance Programmer
If you have some queries, feel free to contact the number or e-mail below.
Mobile: 09488225971
Landline: 826-9296
E-mail:[email protected]
Add and Follow me on Facebook: https://www.facebook.com/donzzsky
Visit and like my page on Facebook at: https://www.facebook.com/BermzISware

- public void Button1_Click(System.Object sender, System.EventArgs e)
- {
- MessageBox.Show(TextBox1.Text + " is a valid date: " + Information.IsDate(TextBox1.Text));
- }

Add new comment
- 251 views