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 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}$)(?=.*[0-9].*)(?=.*[a-zA-Z].*)
I checked this expression in my unit tests using Regex.IsMatch(), and it worked fine. However, when I use it in a RegularExpressionValidator, it always fails.
to pass existing route values using the RouteUrlExpressionBuilder syntax?
I mean, having a page route, say, 'Countries/Great Britain', how can I get a hyperlink with NavigateUrl="<%$ RouteUrl: RouteName=cities,country=*current*,city=London %>" without using codebehinds?
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.
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 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'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 have a text field where user can enter either an URL or an Email address. How can I use a RegularExpressionValidator to validate that user have entered an URL or an Email address
View 8 RepliesI am using a RegularExpressionValidator in my code as follows:
<asp:RegularExpressionValidator ID="rev1" runat="server"
ValidationExpression="[a-zA-Z0-9]{5,7}"
ControlToValidate="txtTAM5" ErrorMessage="Please enter a valid value." SetFocusOnError="True"
Display="Dynamic" ValidationGroup="vg1"></asp:RegularExpressionValidator>
I have a query on RegularExpressionValidator. Although this question already asked in various time, I just want to confirm that if I want to validate "only alphanumeric or(and) double quote, single quote, exclamation, semicolon, colon, ampersand, dot, comma, hyphen, question mark, front slash, parentheses, space of 5-40 character length" then will the regular expression be this :
[Code]...
I have a ValidationExpression that works fine in IE8 and Firefox but client uses IE6 and it doesn't seem to work for them. The issue concerns special characters in a password text box, the clients wants to be able to INCLUDE special characters but IE6 doesn't seem to pick them.
Basically we want to be able to include any letter (upper and lower case) , any number and any special character. This is what I've got so far...
ValidationExpression="^(?=.*d)(?=.*[a-zA-Z]).{8,}$"
Like I said,
test123*
works ok on IE8 but IE6 doesn't seem to pick up special chars so thinks it's only 7 characters long..
I added to my project a simple RegularExpressionValidator for email.ut i cant undersend why it is allows wrong for any email.
[Code]....
Wondering if you could give me a nudge in the right direction. I'm working on an app where I need to validate a field for a correct URL. However, this is an optional field and may be left blankI was just wondering, how can I bypass the validator if the field is null.
View 5 RepliesDoes the RegularExpressionValidator always need a RequiredFieldValidator?I see that when there is no input the RegularExpressionValidator is not working. Correct?
View 1 Replies[Code]....
so what did i do wrong with the regex that its now allowing other document types to be uploaded. I need to make sure that ONLY pdf are allowed. What can i change to the validator and if anything add to the code behind to correct this?
My implementation is simple. I have a public static variable in a class called EmailHelper containing my regular expression as follows:
[Code]....
I then have the following web controls on my page:
[Code]....
The problem is that doesn't matter what regular expression I define as the value of my static public variable bound to the <asp:RegularExpressionValidator />, I always get an error (i.e. it aways says "invalid email")...
gularExpressionValidator on my textbox that I am already using, but I need it tweaked. Here is the one I'm using: ^(([0-9]|[1][0-9]|2[0-3])(.)(25|50|75|00))|(24.00)|([0-9]|[1][0-9]|[2][0-4])$It is for the input of hours worked in a day. The minimum is 0.00 and the max is 24.00. The hours are rounded off to the quarter hour, so it allows for .25, .50, .75, and .00.
View 4 Repliesi am using RegularExpressionValidator inside Ajax popup.
inside this poupup i have a cancel button which will exist the popup in whatever state it is.
problem: when ValidationExpression is false i am not able to exits the popup by hitting cancel button.
i always have to remove the vale from the textbox and exist from poupup.
question:
how can i achieve my goal, not always emptying the textbox...?
i have an text box i need to validate so that the user can enter up to four character and they can be aplha numeric (combination of numbers(0-90 and characters(a-z),
i am using vs2003, .net 1.1
what is the expression i should use to validate this condition
I have tried everything and can't seem to wrap my head around it...I am trying to use the RegularExpressionValidator to validate that a asp:textbox has an '' in the value that the user types in, and it can't be the first or last character.
View 4 RepliesI have a small form with 3 TextBoxes. One textbox I check for numeric values using RegularExpressionValidator / ValidationExpression. Bellow are two buttons: Cancel / OK.
Is there any way to allow the user to continue with "Cancel" even though RegularExpressionValidator finds an error in the textbox?
note: now, if there is an error, whatever user clicks (cancel or OK), nothing happens until the user either corrects the error or deletes the text from textbox completely...
I have an asp:regularexpressionvalidator with the following expression to validate a file upload.
[Code]....
Expresso shows me that it works. The simple html test page below shows that it works, but in my application, loading an html file in the file input always triggers the validator?
debugging the javascript of this control?
control code:
[Code]....
simple test page:
[Code]....
My website has 500 *.dll in bin folder. I write a page with only one TextBox At aspx file.and cs code as below. After iisreset , it costs a long time to open the page.The trace log show itspend much time between Begin PreRender and End PreRender. Please tell me why it takes so long ?
cs code:
protected void Page_Load(object sender, EventArgs e)
{
RegularExpressionValidator _regularExpressionValidator = new RegularExpressionValidator();
_regularExpressionValidator.EnableClientScript = true;
_regularExpressionValidator.Display = ValidatorDisplay.None;
_regularExpressionValidator.ControlToValidate = "TextBox1";
Page.Form.Controls.Add(_regularExpressionValidator);
}
trace log:
aspx.page Begin LoadComplete 0.000986438220500092 0.000158
aspx.page End LoadComplete 0.00100739060411309 0.000021
aspx.page Begin PreRender 0.00102359378077381 0.000016
aspx.page End PreRender 16.6258622255063 16.624839
aspx.page Begin PreRenderComplete 16.6259253620223 0.000063
.net framework 2.0