How To Go For Custom Validation Control And When To Do Validation In Javascript
Mar 12, 2010When to go for custom validation control and when to do validation in javascript? What are pros and cons of each of them?
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Dec 25, 2010I 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 ?
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May 19, 2010I am trying to create a custom password validation attribute which has these requirements
1. cannot be empty.
2. doesn't contain space or other special chracters, which I'll define later.
3. length is between 6 - 12
[Code]....
it works fine on the server-side but I'd like to make this work on the client side as well, so I created a PasswordAttributeAdapter class
[Code]....
and in global.asax I added
[Code]....
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Aug 28, 2010Custom Validation Attribute is not called by validation mechanism?
[Code]....
ViewModel
[Code]....
Submit .NET With JavaScript After Custom Validation?
Jul 13, 2010I need to fire some custom JavaScript validation and then submit my ASP.NET using JavaScript.How do I submit the form using JavaScript?
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View 7 RepliesJavascript - Perform A Validation To Check Whether A TextBox Value Is Empty On Dropown List Selected Index Change Using Validation Controls?
Jan 19, 2011I need to perform a validation to check whether a TextBox value is empty on Dropown list selected Index change using validation controls in asp.net
View 1 RepliesHow To Add Custom JavaScript To Client Side Causes Validation Function
Mar 29, 2011I have an asp.net web for with a few Validation controls on:
[code]....
Custom Server Controls :: Custom Control Causing Validation?
May 25, 2010I've got a custom control with asp:hyperlinks that's causing validation which I don't want... Is there anyway I can stop this from happening?
View 1 RepliesMVC :: Modelstate Validation For Custom Control?
May 11, 2010I am creating a custom 'control' which is simply made of two html inputs [type=text] but can't figure out how the validation will work on the view end.
I want to treat these 2 inner controls as asingle control so when a error is added to modelstate both of these inputs are highlighted in the view and a single validation message is shown.
Web Forms :: Dropdown Validation Not Working When Add Validation Control In Code Behind
Mar 19, 2010I am creating dropdown controls in code behind. in some conditions I need to add validation control to dropdowlist. But Validation not firing when I submit button.
If mQuestion.RequiredToAnswer = True Then
Dim mValidator As New RequiredFieldValidator
mValidator.ControlToValidate = mDDL.ID
mValidator.InitialValue = mDDL.Items(0).Text
mValidator.Display = ValidatorDisplay.Dynamic
mValidator.ErrorMessage = "* Required!"
mTableCell.Controls.Add(mValidator)
End If
I have other dropdown controls on aspx page with validation comtrols. Those are working fine. Only when I ddl and validations from code not working?
C# - Custom Control Doesn't Fire Validation
Jun 4, 2010I've written a custom ASP.net control that descends from LinkButton and overrides the Render() method. I'm using it to replace ImageButtons in the site I'm working on so we don't have to have an image for each button. This control works fine, does the required post-backs etc., however it doesn't fire the validators in its validation group. This is obviously an issue. The code for the control is (condensed) as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public class CustomButton : LinkButton
{
public string SpanCssClass { get; set; }
protected override void Render(HtmlTextWriter writer)
{
if (!Visible)
{
return;
}
writer.AddAttribute(HtmlTextWriterAttribute.Name, UniqueID);
writer.AddAttribute(HtmlTextWriterAttribute.Id, ClientID);
writer.AddAttribute(HtmlTextWriterAttribute.Class, CssClass);
string postback = string.IsNullOrEmpty(OnClientClick) ? "javascript:__doPostBack('" + UniqueID + "','');" : OnClientClick;
writer.AddAttribute(HtmlTextWriterAttribute.Href, postback);
writer.RenderBeginTag(HtmlTextWriterTag.A);
writer.AddAttribute(HtmlTextWriterAttribute.Class, SpanCssClass);
writer.RenderBeginTag(HtmlTextWriterTag.Span);
writer.Write(Text);
writer.RenderEndTag();
writer.RenderEndTag();
}
}
Does anyone know why this would not be causing the validators to fire? I was under the impression that leaving all the other methods in LinkButton un-overridden would leave all the other functionality the same.
C# - Create A Control With ValidationGroup And A Custom Validation?
Oct 8, 2010I want to make panels Visibility true or false based on a result of a Func.I have a page with controls as in the following code:
<asp:Panel ID="Panel2" runat="server">
<asp:Panel ID="Panel3" runat="server">
<c:PermissionPanel ID="P1" runat="server" ValidationGroup="Val1">
[code]...
Custom Validation Control Of Image Not Firing?
Jul 18, 2010I have this code:
protected void registerBtn_click(object s, EventArgs e)
{
bool agencyPictureActive = agencypicture.HasFile;
agencypictureValidator.Enabled = agencyPictureActive;
Page.Validate();
if (Page.IsValid)
{
and this control:
<asp:label runat="server">Logo</asp:label>
<asp:FileUpload id="agencypicture" runat="server"/>
<asp:CustomValidator id="agencypictureValidator"
ValidationGroup="userForm"
ControlToValidate="agencypicture"
ErrorMessage="some error msg" Text="*"
OnServerValidate="checkImageSizeValidate"
runat="server">
</asp:CustomValidator>
I want to validate and save the image along with other form value upon "registerBtn_click" , but the custom validation control of the image does not activate somehow... why?
This is my submit control:
<asp:LinkButton id="btnSubmit" OnClick="registerBtn_click"
ValidationGroup="userForm" Text="Submit" runat="server">
</asp:LinkButton>
Web Forms :: Validation Control - Finding Syntax For The Validation
Nov 1, 2010 I am using the File upload control in asp.net
In that control filter option not available at least i need provide the validation for file upload control
like xml, xsls, txt
give me the syntax for the validation.
Web Forms :: Custom Validation Only Works For FileUpload Control
Oct 12, 2010I have 2 custom validator controls on my page but for some strange reason the Custom Validator for FileUpload control works and the custom validator for TextBox control does not work. Here is the aspx code:
<asp:FileUpload ID="_fileCv" runat="server" Width="500px" /><br />
<asp:RequiredFieldValidator ID="_rfvFileCv" runat="server" ErrorMessage="Resume; " ControlToValidate="_fileCv" SetFocusOnError="True" ValidationGroup="APPLY">
<img src="images/mandatory.gif" alt="Required" /></asp:RequiredFieldValidator
<asp:CustomValidator ID="CustomValidator1" runat="server" ControlToValidate="_fileCv"
ErrorMessage="Max file size for documents is 4MB." OnServerValidate="CustomValidator1_ServerValidate" ValidationGroup="APPLY"></asp:CustomValidator>
<asp:TextBox ID="_txtHealthComments" runat="server" TextMode="MultiLine" Rows="5" Width="500" />
<asp:CustomValidator ID="CustomValidator2" runat="server" ControlToValidate="_txtHealthComments"
ErrorMessage="Kindly enter health Comments ." OnServerValidate="CustomValidator2_ValidateHealth" ValidationGroup="APPLY"></asp:CustomValidator>
Here is the code behind:
protected void CustomValidator1_ServerValidate(object source, ServerValidateEventArgs args) {
if (_fileCv.FileBytes.Length > 4194304) {
args.IsValid = false;
} else { args.IsValid = true; } }
protected void CustomValidator2_ValidateHealth(object source, ServerValidateEventArgs args) {
if (_rdoHealth.SelectedValue == "1" && _txtHealthComments.Text == "") {
args.IsValid = false; } else { args.IsValid = true; } }
C# - Add A Validation Support To DropDownList By Creating A Custom Control?
Feb 2, 2011I'm trying to add a validation support to DropDownList by creating a custom control inheriting from DropDownList:
public class MyDropDown: DropDownList, INamingContainer
{
private const string ValidatorID = "Validator";
private RequiredFieldValidator _validator;
[Code]....
My class implements INamingContainer because I wanted to avoid naming conflicts. Unfortunately when I try using this control I get the following exception:
Unable to find control id 'MDD' referenced by the 'ControlToValidate' property of 'MDD_Validator'
This is happening beause for INamingContainer FindControl(NamingContainerId) returns null.
When I remove INamingContainer implementation and set validator ID in the following way:
_validator.ID = String.Format("{0}_{1}", ID, ValidatorID);
Everything is working fine, and id given to Validator is the same as it would be inside Naming container.
But is there a way to accomplish this WITH INamingContainer ?
Reset .net Validation Control Via Javascript?
May 26, 2010How do I reset an asp.net validation control via JavaScript? The current code sample clears the error message text but does not reset the validation control for the next form submission.
var cv= document.getElementById("<%= MyValidationContorl.ClientID %>");
cv.innerHTML = '';
Update:Here is the full code sample of the form. I can not seem to get the validation controls fire off on another form submission:
function ClearData() {
var cv = document.getElementById("<%= MyValidationContorl.ClientID %>");
cv.innerHTML = ''; [code]....
Custom TextBox Control With Built-in Client-side Validation?
Jan 30, 2011I have a textbox in my application which has multiple validation on it e.g. RequiredFieldValidator, RegexValidation and CustomValidation. My page has several similar textboxes. So I just copy-paste and change id and controltovalidate properties and it is working.
Since similar tbxs are going to be used on another page as well, I think it would be nice to create my own custom TextBox control with built-in validation.
Here are two approaches I have found and tried:
1: Implement from IValidator perform my custom validation in Validate Method. As shown here: Self-Validating TextBox But it does not show how to implement client-side validation.
2: Create custom control that derives from TextBox and add asp.net built-in validators I need. As shown here:Custom TextBox. I tried the code and it works server/client side.
I like the first approach but don't know how to implement client-side validation. I know I need a client-side js function. I can do that. I know how to include my js file using Page.ClientScript class but don't know how to integrate all together and make it work.
I can create a UserControl or the second approach above but for now I am specifically looking to learn and implement client-side validation from custom control.
C# - How To Make XHTML Validation Happy When Using Custom System.Web.UI.Control
Aug 28, 2010I am sure this question has been asked and answered; but I haven't managed to find it...
I am creating a very simple custom System.Web.UI.Control that has a few properties. I can define in my ASPX page the following tag and everything is happy:
<ns:MyControl runat="server" MyProperty="Value" />
However, if I want to have one or more "child" properties, like so:
<ns:MyControl runat="server" MyProperty="Value">
<Element AnotherProperty="AnotherValue1" />
<Element AnotherProperty="AnotherValue2" />
</ns:MyControl>
what I need to do to make the XHTML validate. I always have
Content is not allowed between the opening and closing tag of element 'XXX'
Element 'XXX' is not supported
The name contains uppercase characters, which is not allowed
The code actually runs as expected, but I haven't manged to find a good example on how to do this correctly so that everything validates. In terms of implementation of the Custom Control, I just have all properties stubbed out at the moment, and looks something like:
[ParseChildren(true)]
[PersistChildren(false)]
public class MyControl : Control[code]....
Ultimately, Element is intended to build up a collection of Elements. Any insight on how to do this properly and have the XHTML validate
Javascript - Client Side Validation And Server Side Validation In Java Script And Respectively ?
Sep 6, 2010want to know that can we validate a control which is out side a form element in asp.net(server side validation)and outside a form element in html(client side validation) let's take a closer look
<html>
<body>
<input type="text" name="first name"/>
</body>
</html>
can we apply clien side validation on above text box by java script ?in asp.net
<form runat="server">
</form>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
Web Forms :: Custom Login Control In Masterpage With Coded User Validation?
Jan 17, 2010I have a little doubt about creating a login control in the master page within a contentplaceholder.
What i want is to create my own login control in the masterpage, using a loginview inside a contentplaceholder. The code is the following:
[Code]....
So far so good, but now i want to create the logic to do the actual login. In a regular aspx page i'll do it in the cmdlogin click event, but as i'm in the masterpage, i'm not sure if i can do that. I actually tried to do it in the code behind of the masterpage, but it didn't work. What can do?? do i ahve to use the asp.net login control?
JQuery :: Custom Invalid Validation / Using JQuery Plug-in Validation?
Oct 10, 2010Is there a method in jQuery that I can customize an invalid validation myself instead of using jQuery plug-in validation?
For example, if the form is valid do this below.
$('form').validate();
if ($('form').valid()) {
//do something
};
But if I wanted to have a cutomize invalid method I could do this below.
$('form').validate();
if (!x == y) {
$('form').valid() = False; //[:(]
alert('Form is not valid.');
};
Web Forms :: Validating Input In A Custom User Control Using Jquery Validation Plugin?
Jun 18, 2010I have a custom user control with some input fields and a submit button. I need to validate the fields using the jquery validation plugin when the submit button is clicked. (The function of the submit button is to create another custom control which displays the data entered in the above mentioned control)
Bt as far as I knw, validation plugin works only with form validation ryt? And my custom control does not contain a form tag as I am using master pages. The custom control is present in one of the content pages and the master page already contains a form tag with a runat=server attribute. And I guess one page can contain only a single form tag with runat=server attrib ryt?
So how do I get it to work?
AJAX :: Created A Custom Validation Control That Compares Two Textboxes And Verifies Their Content?
Jul 19, 2010I recently created a custom validation control that compares two textboxes and verifies their content. When I use this control in a detailsview I have no problems but, when an updatepanel is added the validation control no longer works.I'm using Visual Studio 2010 and .net 3.5 framework.
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