I have a new validator added to one screen to validate a text box. If user clicks on submit button, the validation summary will pop up but not showing the text of this validator. It works well with all other validators on this page.
In other words, this validator works but is not shown in the validation summary.
Check if you use the same name as the default validation group may not verification. I suggest you to check out her hard have added value.
I figured it out, I used the Text property of the validator instead of ErrorMessage property. Thanks for your comment #MichaelLiu which made me look at the code.
Related
In one of our projects we want to show the "Required field validation error" by changing the border color of the corresponding textbox. our page contains a lot of required field validator,regular expression validator etc. But we want to highlight only the required field errors.
Is there any way to do this without using any custom validation function.?
or Is there any method to find all the required field validators in a page in the client side. If we can find this i think we can highlight the corresponding error textbox
one option, maybe less annoying than switching to custom validators, is to create your own javascript validation function that is triggered with a submit click. from here you can change the appearance of the invalid fields.
I have a web form. There are many different sections. I can say that each section displays data of a datatable. At each section I have OK and Cancel buttons. When I press OK any changes to the table in the database takes place. I've also put some Requiredfieldvalidators. Let's say I'm inserting a new record in the section one and the fields are correctly typed. When I press OK I get error message raised by the rest of the validators that are on the other sections. Isn't there any way that when I press OK button of a particular section to get validation errors of that same area? So what I probably need is a button that will not serve as the hole page submitter but rather a submitter of a specific section.
Place a ValidationGroup on the RequiredFieldValidator's. Then place the same ValidationGroup on the correct submit button. When its clicked, only validation controls that are a part of the group are validated.
http://msdn.microsoft.com/en-us/library/ms227424.aspx
I think janhartmann is correct ValidationGroup can help you solve the issue.Have a look at this article
I have an asp:textbox. On textchange of this textbox, I'm doing validation for the text entered. If the text entered is incorrect, I want to flash a message of incorrect text entered. Please re-enter. How can I do this in ASP?
Just use a RegularExpressionValidator and keep client validation property at it's default "true" value. The control will handle this behavior for you.
Here's an example in action with the code: http://www.w3schools.com/ASPNET/showasp.asp?filename=demo_regularexpvalidator
You should avoid using that property if you can. Your validation code will only run when you postback to the server, and you don't want to do a full postback every time the text changes unless you really have to. Instead, use javascript to handle the onchange event of the input element rendered in the raw html by asp.net. Then remember to duplicate your validation code on the server.
I have several asp.net validators.
I want to show all(except one) error messages in validation summary.
How can I not show the remaining one in validation summary but in other places?
Could you put the one you don't want to show in a different ValidationGroup to the rest?
Use the Text property of the validator to show in the validator itself. The ErrorMessage property is what is displayed in the ValidationSummary
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.basevalidator.errormessage.aspx
i have one page to design. in this it includes an , password text box,
My requirment is that when an user hit the submit button without entering any data, then it shows a message in red color at side of both the text box as "Cannot be empty"
How it can be done without using Javascript?
In this instance you would use a RequiredFieldValidator control, drop that in your page. It will by default use javascript and server side. You can turn the javascript off by setting the EnableClientScript property to false. You'd associate this validator with your text box using the ControlToValidate property. Set the Text property to the message you want to display.
On the server side event generated by your button simply call the Page's IsValid property and only if it is valid continue processing.
See Validating Form Input Controls.
I found this tutorial at http://social.msdn.microsoft.com/Search/en-US/?query=asp.net%20validation&ac=8.
You can use validation controls. They support client side and server side validation.
You don't need to know javascript if you mean that.
In ASP.Net you can have Validators.
http://www.dotnetcurry.com/ShowArticle.aspx?ID=121&AspxAutoDetectCookieSupport=1
Short but true =)