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 have changepass.aspx page that in this page i have 3 textbox and 1 captcha
refer [URL] ....
I want when users enter their data correctly in message box show ="your password update" and if they enter wrong data in messagebox show="please enter oldpassword correctly"
So I use below code
protected void Page_Load(object sender, EventArgs e) {
if (Session["Message"] != null) {
this.ClientScript.RegisterStartupScript(GetType(), "Javascript", "<script>alert('Yur password update correctly.')</script>");
Session["Message"] = null;
} if (Session["MessageError"] != null) {
this.ClientScript.RegisterStartupScript(GetType(), "Javascript", "<script>alert('please enter old password correctly .')</script>");
Session["MessageError"] = null;
}
But when I enter data correct or wrong it didn't show any thing in message box
protected void Imgpass_Click(object sender, ImageClickEventArgs e) {
string data=Server.UrlDecode(Request.QueryString["Behcode"]);
SqlCommand _cmd=new SqlCommand("changepassword",_cn);
_cmd.CommandType=CommandType.StoredProcedure;
_cn.Open();
[Code] .......
I have a user control with a label and a field. I add the user control dynamically to a page at run time. There could be many user controls which are built dynamically from data I get from the data base. The data describes the label name and if the text box should be completed.. ie is it required. I have a submit on the main page which has a validation group.All the validators on the user controls have the same validation group. So far so good I hope.
The user control has a RequiredFieldValidator for the text box and looks all like this. The validator is enabled by default.
<asp:TextBox ID="dfControl" runat="server" Text="" ToolTip="ucsAlphanumericEntryDC" Width="95%" CausesValidation="true"/>
<asp:RequiredFieldValidator ID="rfvContol" runat="server" ErrorMessage="Value is required" EnableClientScript="true"
ValidationGroup="ValidateContols" ControlToValidate="dfControl" Display="Dynamic" Enabled="true"></asp:RequiredFieldValidator>
When I dynamically load the control I check a parameter to tell me if the field is required or not. The paramater is from the database which represents the control that I am about to draw. If the Field NOT a required field I disable the validation in the page_preRender.. also tried it in load.
if (!DisplayRequired)
{
rfvContol.EnableClientScript = false;
rfvContol.Enabled = false;
dfControl.CausesValidation = false;
}
So far so good. This all works on the client side validation for only the user controls with the Display Required set to true, leaving the Validator enabled.however on posting page from a submit button which I have wired to the same validation group as the user controls, I check the IsValid on the submit and if its false I dont save anything. But when the page re-renders on the client.. I have error messages on all the user controls, saying that they are required... even though I disabled some of them that where not required. the View state is default on the control which I assume to be on.
I also tried not redrawing the controls with the validators, by enclosing the code in a if(!IsPostBack)
why the validators fire when they are disabled on the first page load but dont get disabled on the postback.
I have today developed a page that builds a series of RadioButtonLists, which may or may not be required fields.
As the page varies depending on DB values, I have rendered the controls using .RenderControl().
Unfortunatley I do not have the code to hand right now, but its along the lines of:
RadioButtonList rblQuestion = new RadioButtonList();
rblQuestion.id = question.ID;
// Add ListItems...
RequiredFieldValidator rfvQuestion = new RequiredFieldValidator();
rfvQuestion.ControlToValidate = rblQuestion.ID;
rfvQuestion.ErrorMessage = "*";
I then use .RenderControl on both rblQuestion and rfvQuestion, concatenate into a string then use the HTML String to populate a PlaceHolder.
This seems to work fine, all appears as expected apart from the RequiredFieldValidator - I get a red asterix (My ErrorMessage) next to each RadioButtonList - But this appears as soon as the page loads, not on a post/button click.
Using the ValidationProperty I've managed to connect a RequiredFieldValidator with my custom control. When I enable client script in the validator, JavaScript errors occur.
Is there a way to tell the RequiredFieldValidator how it can validate my custom control in the client?
I use validation control in my page when users click on button if they don't enter data in textboxs it show massage in validation control
I want In addition to using validation control when users click on button to insert data it show error massage thar show EX: "please complete your form"
How I can do it ?
I would like to know how the validation frame work implemented in .Net.
i have similar requirement need to implement . I would like to know how to start in visual studio.
Am trying to implement some sort of validation on a text box, that users would input dates into. I need help on writing VB code, such that when users fill there date of birth into the text box, it prevents them from putting a date in the future. Also for a text box that requires a date in the future, the validation should prevent them from picking a date in the past.
View 2 RepliesI'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 want to call some web-service webmethods on asp.net submit button's click in order to validate the form regarding to some business logic and then I would like to have the button to go on its default behavior if the validation is OK.
How can I stop the aspx page to post-back (after submit button click) and continue submitting the form only if it is allowed by the 'success' function of jQuery.ajax()'s option parameter?
I have a problem to use jquery Plugin/Validation.I want to add a method and follow the documentation but I think I still missing some thing.First I add the method but I think I have a problem to implement it.
<script src="js/jquery-1.4.1.js" type="text/javascript"></script>
<script src="js/jquery.validate.js" type="text/javascript"></script>
[code]....
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 need to implement a centralized form validation framework for my ASP.NET(C#) 3.5 website.
And for this I have tried the following solutions-
[URL]
[URL]
I have added the .dll file in my project's BIN folder and for Matt Gibb's solution I have also added the tagMapping code to web.config file. But for both of the solution, when I ran the project I noticed it doesn't have any effect on the validation controls.
I 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 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.
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.
do you have validation using HTML5 and also I am using with Master Page.
View 1 RepliesI am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?
View 1 RepliesAm using ModalPopupExtender (In VS 2005 ). But it doesnot showing it when i use in SSL.
View 2 RepliesUsing the code such as found below, sometimes certain .PNG files will fail to load. While other images, nearly identical in size, never have any such problem. Build Action set to Resource. Why is that? Anybody figure it out? This is for a datagrid but I doubt the control has much to do with it. Probably certain .png files make Visual Studio 2008 choke because of some attribute set internally. But it's a mystery to me....anybody else notice this? # private void dGrid_LoadingRow(object sender, DataGridRowEventArgs e) { Employee emp = e.Row.DataContext as Employee; FrameworkElement ele = dGrid.Columns[4].GetCellContent(e.Row); string url ="http://localhost:7642/DisplayImageHandler.ashx?id=" + emp.ID; Uri imageUri = new Uri(url, UriKind.RelativeOrAbsolute); (ele as Image).Source = new BitmapImage(imageUri); } private void img1_ImageFailed(object sender, ExceptionRoutedEventArgs e) { Image img = sender as Image; // Display an image for error here }
View 2 RepliesI have a PageMethod that works perfectly well when it either (a) running in the VS dev server, or (b) deployed but marked with UseHttpGet=false.
What doesn't work, and is driving me mad, is having UseHttpGet=true and then deploying it to a test server (Vista & IIS7). It fails to call through the proxy with error code 404 coming back. But it works find if I set UseHttpGet=false.
I have gone through all of the basic stuff I can think to check, and as noted it works perfectly well on the dev box. So there must be something particular about full-blown IIS7 and its config that I am missing..
anything to check in the IIS manager that would cause this to fail? I've tried with forms authentication enabled and disabled, as a few posts mentioned issues with that.
I saw some code written by another developer that looks something like this:
var stringBuilder = new StringBuilder();
if(stringBuilder == null)
{
// Log memory allocation error
// ...
return;
}
I am working on my first project with Linq to Sql entities/winforms, and I have little problems updating the entities childs in the main form, when I come back from the entity editor....
I have a list of people, and I can edit them or add new. The edited or new person opens in a new form and can have many addresses that can be added modified from the person editor and it opens a third form...
when I have finished edit the new address, so i return to the person editor and add the address, within the person entity context... so person.address.add(newAddress)...
Then I update the list of addresses, referencing: Datasource= foreach(address adr in person.addresses).And when I have finished editing the person i return to the mainform and save the changes from that entity.
_datacontext.save()
The problems I have are that if there is a new person, and I don't add addresses, the person saves without problem. But It doesn't do it if I add any address. With the updates I haven't any problem, they updates all, adds new addresses, but I can't remove anything with the person.addresses.remove(address)...