C# .NET - Button validation - Asked By shaheen parveen on 16-May-10 01:01 PM

Hi.......
i want to perform validation on button...how should i do it....
problem is:

i have one button...after clicking button some value should displayed in the textBox...
what i want is user should to move to next control on form only after clicking the button.....
similar to that of textBox Validation...

can any one help me....

thanks.

When u are using validation control in asp.net that by default perform validation on button click.

if u want to use validation in javascript than u add that validation function on button's click event as follows

btnSubmit.Attribute.Add("onClick", "javascript:valfunction();");

and u can put your desired validation code in that javascript function

you can simply check textbox1.Text=="" in next control and if that true then you can display message that need to click the button

You Can Check That If In Textbox Some Value  Or Not.

ON your button click you can check the value of textbox and according to that you can move to next textbox like;

if(textBox1.Text=="")
{
    textBox1.Focus();
    MessageBox.Show("Please enter value in TextBox1");
    return;
}
else
{
    //here you can move cursor to next textbox like;
    textBox2.Focus();
}