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Let's give it a try, and add a Required Field Validator to our page.We will also add a Text Box to validate, as well as a button to submit the form with.If not then go to my tutorial “How to add Ajax Toolkit in VS10” and add it, we need that later.DATABASE CHAMBERStep 4 In Server Explorer, under your database (Database.mdf) do something to table then select Add New Table. Stored Procedure – sp_insert: Figure 2 Stored Procedure DESIGN CHAMBERStep 6 Now get back to your page, where we will design our application. May i know, how to create validation code, and how to add code in my existing code? Query String("from") else 'If the first page that the user accessed is the Logon page, 'direct them to the default page. Redirect "My Page.asp" End if Else ' Only present the failure message if the user typed in something. Form("User") When i enter the logon button without fill the input fields, it shows like this "username or password required". The regular expression is set in the Validation Expression property.
I'm sure that all the attributes of the controls makes sense by now, so I won't go into details about them. You should see something like this: If your browser supports Java Script, which most modern browers do, then you will notice that the page is not being posted back to the server - the validation is performed clientside! To see how it feels, you can add enableclientscript="false" to the Required Field Validator and try again. Form("password") = Password then 'Set the validation cookie and redirect the user to the original page. Cookies("Valid User") = Validated 'Check where the users are coming from within the application. Query String("from") else 'If the first page that the user accessed is the Logon page, 'direct them to the default page. Redirect "My Page.asp" End if Else ' Only present the failure message if the user typed in something. Information sent from a form with the POST method is invisible to others and has no limits on the amount of information to send.
User input should be validated on the browser whenever possible (by client scripts).
Step 2 In Solution Explorer right-click the project and select Add New Item (or use Ctrl Shift A) the select Web Form (validation_demo.aspx).