i have this ValidationExpression="(d{1,}.{0,2} .{2,})|(.{2,} d{1,}.{0,2})" used in regularexpression validator. I want to use the same one in a customvalidator. But customvalidator does not have option validationexpression. how can i add this in code or in tag.
View 1 RepliesI am using the expression to test for numbers and letters, what do I need to add to also text for "no spaces"?
View 3 RepliesI have a CheckBoxList generated from the code behind file that I want to validate with a CustomValidator.However, I don't succeed in stating the C# function that it has to use, and I can't seem to bind it to the CheckBoxList control.
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and then something like:WorkCheckboxValidator.ControlToValidate = WorkScheduleCheckboxList.ToString();
I'm very new to asp and vb.net, I've just learned about regular expression validation but one thing is bugging me: How can I hide my expression from being viewed on my source code?
The plan is to make a very simple 'login' type of page. I know this goes against all that is holy in this kind of operations, but it's just something I'd like to try out.
Also, after the expression has been validated, I want to load another page, I was thinking of achieving this with:
<asp:TextBox ID="txtcp" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="CP Errada"
Display="Dynamic" ControlToValidate="txtcp" ValidationExpression="admin"></asp:RegularExpressionValidator>
and in vb:
If txtcp is validated then Response.Redirect("mypage.aspx") end if
But the syntax on this IF is obviously not right
I am currently working on a web form where you need to make your own account. One of the required fields is where you need to fill in your postal code. I work with an RegularExpressionValidator. This exists out of 4 numbers. The first number may not be a zero. I know that I need the ValidationExpression (propertie of RegularExpressionValidator) but I don't know what to fill in.
View 1 RepliesRegularExpressionValidator.ValidationExpression="d{10}" means only digits - 10 max.
RegularExpressionValidator.ValidationExpression="d{10,12}" means only digits - 10, 11 or 12.
How to force strictly 10 or 12 symbols?
I'm trying to implement a RequiredFieldValidator with a ValidationExpression which is fail validation if the value is -I'm guessing there will probably be a very simple RegEx for it but I am still trying to get my head around it.
View 7 RepliesI found the answer to this, but it's a bit of a gotcha so I wanted to share it here.
I have a regular expression that validates passwords. They should be 7 to 60 characters with at least one numeric and one alpha character. Pretty standard. I used positive lookaheads (the (?= operator) to implement it:
(?=^.{7,60}$)(?=.*[0-9].*)(?=.*[a-zA-Z].*)
I checked this expression in my unit tests using Regex.IsMatch(), and it worked fine. However, when I use it in a RegularExpressionValidator, it always fails.
Using a RegularExpressionValidator, I want my textbox to accept a max of 20 chars, and only English characters A-Z (upper and lowercase), 0-9, hyphens (-), underscores (_), and spaces. That's it.
Now that I think about it, since this text will be used by a proprietary software to create a file of the same name, and will also be included in the querystring when the page is redirected (so that I can find the file so the user can download it), I'm not sure if I should keep it safe and not accept spaces.
how am I be able to display a text into a customvalidator control, say for example an asterisk symbol (*) for a new entry. If in case that, the inputted value is invalid then, I will place proper prompt text.
View 2 RepliesMy web page uses a number of custom validation controls to check that values have been selected in DropDownList controls. I have written simple Client side scripts and also server side, but the validation control never gets fired. I am performing validation using a button-click that has CausesValidation set to true.
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I have two CustomValidators, both of which function in the same way (call a query and check if a particular value is available in the DB), the only difference is the query itself.
Rather than writing the same function definition in the code-behind, I would like to find a way to execute a particular query depending on which CustomValidator called the function (I guess using the CustomValidator's ID) so if I have the follwing:
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How can I check in the code behind , which validator called the function "Check"??
I have a text box that among other requirements, it is not allowed to be Null.
I setup my validation through a CustomValidator, but the event wont fire when the Value is Null. everything else works fine
Here is a simplified version of my customvalidator
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How can I create a CustomValidator on Client Side for validating my file path from FileUpload?
View 1 RepliesI am working with a page that has a series of checkboxes that at least one box must be checked.
The validator fires when I click the submit button and if no checkboxes are checked indicates the validation has failed. However If I check one of the checkboxes the validation message does not go away until I click the submit button again.
If I was using this on a control in which I had specified the ControlToValidate and I fixed the validation issue the error message goes away immediately.
However in this case I am not setting the ControlToValidate due to the neeed to validate serveral independent controls.
So my question is can I cause a re-validation of the custom validator? For instance I would like to add on each checkbox a onclick="revalidate()" that would then force the validation to happen again.
Here is some sample code that I wrote to demonstrate the scenario.
<script type="text/javascript">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
function IsOneCheckboxChecked(sender, args) {
if (!$('[id$=checkBox1]').attr('checked') &&
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I am clicking one linkbutton to check the validators clientside in the panels. This works well in IE, but not in Firefox. When I click the button, it does not even hit the validateLength function
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Sample code below. Either I am doing something wrong or missing something in 4.0.
1: The function CheckText fires upon button click in IE but not in FF.
2: The function CheckText fires upon button click in IE /FF when the site runs under 2.0 or 3.5.
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I found this article [URL] on how to create a customvalidator for the checkboxlist. Followed all the way thru, but when i load my page i get the following error, how can it exist in 2 places? How can i resolve this to use the validation on the page?
Compiler Error Message: CS0433: The type 'CustomValidators.RequiredFieldValidatorForCheckBoxLists' exists in both 'c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files
oot294f506e54827e67assemblydl3b4b5a368e15533_8dcfca01RequiredFieldValidatorForCheckBoxLists.DLL'and 'c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files oot294f506e54827e67App_Code.5yh9snf-.dll'
VWD 2008 Express. Visual Basic.
I have placed a customvalidator in my listview control in the InsertItemTemplate. I want to make a check before the insert is done and set the validator to false if the test fails. I placed the code to check this in a click event routine that fires when the "Insert" button is clicked. When the code tries do a FindControl for any controls in the ListView, I get an error saying, "Object reference not set to an instance of an object."
Here is the code:
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I have a custom validator which validates three text boxes. my code is,
View 4 RepliesHow can I set an error message in a CustomValidator and show this with the ValidationSummary after the submit with JavaScript.Thus, I want to trigger the Customvalidator with Javascript.
View 3 Replies<asp:TextBox runat="server" ID="Accountname" />
<asp:CustomValidator runat="server" ControlToValidate="Accountname" OnServerValidate="Accountname_CheckUnique" meta:resourcekey="ACCOUNTNAME_UNAVAILABLE" />
protected void Accountname_CheckUnique(object source, ServerValidateEventArgs arguments)
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I try to use CustomValidator ClientValidationFunction. The issue I have is CallBack using Asynchronous call which make it difficult to detect when the call is complete.
var callbackresult;
function ValidateSomething(src, args)
{
MyCallBackMethod(param); How shall I check when the call back is complete??? Any workaround?
if(callbackresult == 'true')
args.IsValid = true;
else
args.IsValid = false;
}
function CallBackRef(result, context)
{
callbackresult = result;
}
I want to use CustomValidator for CheckBoxList web control. I tried the code found on:[URL]
But it is not working for me. Nothing happens. No error.
My code (based on the provided link) is as follows:
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But it doesn't execute client side CheckItem2 method.
Does anyone know how to make CustomValidator work with controls which are in DetailsView for example ahen updating item
CustomValidator doesnt work on controls which are in detailsView after performin for example update on that detailsView. For example RequiredFiledValidator works with no problem while CustomValidator has problems (Validation doesnt occur):/