I want to check textbox validation

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Hello Guys, I want to know how to check textbox1.text is greater than textbox2.text
actually i am using sum value in this textboxes.

What I have tried:

C#

i want to check if textbox1.text > textbox2.text so messagebox show (Calculate);
else{
<pre lang="C#">messagebox show (try Again);</pre>

}

Posted 30-Nov-16 11:34am

Member 9983063

Updated 30-Nov-16 21:22pm

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2 solutions

Solution 2

The CompareValidator can compare two values, for instance the values of two controls.

Visit this helpful resources.It can help you.

Validation controls in ASP.Net[^]

C# Tutorial 15: How to validate the value in a textbox - YouTube[^]

Posted 30-Nov-16 21:22pm

Sachin Singh

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Karthik_Mahalingam · Accepted Answer · 2016-11-30T16:12:00

Solution 1

try like this

C#

int value1 ,value2;
         bool isValid1 = int.TryParse(textbox1.Text, out value1);
         bool isValid2 = int.TryParse(textbox2.Text, out value2);
         if (isValid1 && isValid2)
         {
             if (value1 > value2)
             {
                 // your code
             }
         }
         else
         {
             // invalid entry in the textbox
         }

Posted 30-Nov-16 16:12pm

Karthik_Mahalingam

Comments

ridoy 1-Dec-16 3:44am

5ed!

Karthik_Mahalingam 1-Dec-16 4:19am

Thank you ridoy