Web Forms :: How To Use Dynamic Validator Control
Apr 2, 2010I am not able to find any Site which will tell how to use Dynamicvalidator control in asp.net 3.5 from scratch.
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Similar Messages:
Custom Validator Dynamic ServerValidate Using Reflection
Jul 4, 2010I have a UserControl which contains a TextBox and a CustomValidator. I would like to set the CustomValidator.ServerValidate to a method in the page that contains the UserControl I found this code which will allow me to dynamically set the custom validators validation function: cusvCustom.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(MethodName);
The problem is that a string value won't work there. It needs to be a reference to the method. Is it possible to use reflection (or some other method) to get a valid reference to the parent controls method using only the string name of it? The reason I want to use the string value of the method name is so I can place the control on the page thusly: <uc1:TextBoxField ID="tbUserName" runat="server" CustomValidationMethod="ValidateUserName" />
WebUserControl.ascx
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl.ascx.cs" Inherits="WebApplication1.WebUserControl" %>
<asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="Custom Validation Failed" OnServerValidate="CustomValidator1_ServerValidate" />
<asp:TextBox ID="TextBox1" runat="server" />
<asp:Button ID="Button1" runat="server" Text="Submit" CausesValidation="true" />
WebUsecControl.ascx.cs
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace WebApplication1
{
public partial class WebUserControl : System.Web.UI.UserControl
{
public ServerValidateEventHandler Validating;
protected void CustomValidator1_ServerValidate(object sender, ServerValidateEventArgs e)
{
if (Validating != null)
Validating(sender, e);
}
}
}
TestPage.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TestPage.aspx.cs" Inherits="WebApplication1.TestPage" %>
<%@ Register Src="~/WebUserControl.ascx" TagName="WebUserControl" TagPrefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<uc1:WebUserControl ID="WebUserControl1" runat="server" OnValidating="WebUserControl1_Validating" />
</div>
</form>
</body>
</html>
TestPage.aspx.cs
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace WebApplication1
{
public partial class TestPage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//WebUserControl1.Validating += WebUserControl1_Validating;
}
protected void WebUserControl1_Validating(Object sender, ServerValidateEventArgs e)
{
e.IsValid = false;
}
}
}
I did some research and I found Type.GetMethod and MethodInfo but I can't get them to work. Primarily because I don't know the type of the parent control and can't figure out how to get it. EDIT: My code for matt-dot-net. As you can see it's almost an exact duplicate of your code. For whatever reason it does not work for me as I have it here. When I click on the button the page reloads and is the same. When I un-comment the one line though and click the button then I see the error message.
.net - Validator Throwing Error On One Of Dynamic JS Pages?
Sep 8, 2010I have the following RegularExpressionValidator on one of my pages:
<asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server"
ControlToValidate="InKindTextBox"
ErrorMessage="The value entered for 'Cash' must be in a number format. Examples: 500.00, 500, $500, $50,000 or $500.00"
ValidationExpression="(?n:(^$?(?!0,?d)d{1,3}(?=(?<1>,)|(?<1>))(k<1>d{3})*(.dd)?)$)" >
But when it tries to validate it throws the error below from one of my dynamic JS pages.When I run this regex through regex texter it works fine. Am i doing something wrong here?
Javascript - Dynamic Error Message For Custom Validator Clientside?
Mar 22, 2011I am using a custom validator to call a javascript function for validation. My problem is that I need to be able to change the error message dynamically. Here is the code:
<asp:CustomValidator ID="CustomValidator1" runat="server" ClientValidationFunction="fcnValid1"
ErrorMessage="" Display="None" ValidateEmptyText="True">
</asp:CustomValidator>
[code]....
Web Forms ::setting Display ="Dynamic" For Required Field Validator
Aug 12, 2010Issue when setting Display ="Dynamic" for Required Field Validator.Here is my ASP.NET code. Simple. it has a A textbox associated with a required field validator and a submit button.
[Code]....
Do the following
1. Click on Button1
2. RequiredFieldValidator will be shown
3. Type some text in TextBox
4. Use your Mouse(no tab please). and click on the button , you can see that your page does not "POSTBACK" and only the validation gets cleared. you need to
click again the button for Submission of Form.This seems to be a bug by Microsoft when setting the property Display ="Dynmaic" and Is there a easy workaround without changing the intended behavior for this available?
Web Forms :: Validator Control For More Than One Text Box?
May 14, 2010I have more than two text boxes in my web form.Now I want to validate either of the text boxes value is empty then only user should get error message i.e enter either text values.
For ex: There are two text boxes Phone no and Name. If user clicks on submit button without entering in either of text boxes then only user will get error message i.e enter either phone no. or your name .I can use the javacript in order to solve this case but I want to know is there any control in asp.net to solve this purpose?
Web Forms :: Validator Control Does Not Let Code Run?
Jan 31, 2011I have a a web form with multiple formviews and one field is a mandatory field. Each formview has its own submit button. User cannot submit the data in any of the formviews until that one mandatory text field is entered.
But I also have another section in the webform, which has a calculation code in it. It takes in input from two text boxes, does some calculations and displays the result in another text box. Because of the validator control, I am not able to run the calculation code without the mandatory field filled in. I would like to run the calculation code irrespective of the mandatory field.
How do I do this? I need that submit button (in calculation section) to disregard the validator and display the result.
Web Forms :: Can Add Validator Control Programmatically
Feb 3, 2011I am adding validator controls to a page on runtime. When I do this it seems to work except for one thing: the page doesn't get validated (the Validate() method is not invoked) - neither on the client nor on the server. However when I can Validate() myself, the validators do their work and generate the required errors. So it looks like the simple fact of adding a validator programmatically causes the page validation to not take place. My page does have validators in the aspx file - they work fine when I don't add any programatically, but as soon as I do add one programatically, the Validate() method is not invoked.
The way I add the validators is by creating an instance, giving values to all relevant properties, and then adding to the page control collection. I tried this in the PageLoad, and prior page-cycle events. The same result occured. I also tried with or without having a ValidationGroup, and with or without having a ValidationSummary control on the page. The same result occured.
Forms Data Controls :: Text Validator Case-sensitive / Change The Server-side validator?
Dec 13, 2010I have a validator on a textbox that validates against a list to ensure that the user doesn't input the same name. When testing it, if I type in the same name including the same case structure, it returns an error. If I change one letter to a different case, it doesn't return an error but rather my SQL server returns a duplicate error. How do I change the server-side validator so that it picks up duplicate names regardless of case?
View 4 RepliesWeb Forms :: Using Range Validator And Regular Expression Validator For A Text Box?
Dec 31, 2010I using RangeValidator (0-10)gularExpressionValidator for text box ,Iam using regx for validate numeric characters
But if i enter charcters it will fire both RangeValidator and regx validator eventhoug i am enterd character,
i want to fire both validators seperatly
Here is my code
[code]...
Web Forms :: Compare Validator /Range Validator Does Not Work While Using Localization
Oct 27, 2010I have a requirement of converting existing english form to multi lingual form.I am currently converting english form to spanish form.
Everything works except the date formats.
The range validator is not working in a spanish form but works in a english form.
I have set the maximum and minimum value in page load as below in the english form
Heres how i have set the values
[code]...
Web Forms :: RequiredField Validator Seems To Be Validating Some Other Control?
Mar 11, 2010I'm adding RequiredField validators to a group of RadioButtonList controls, and something strange is happening when the page loads. The page renders just fine with no validators tripped, but as soon as I click on one of the radio buttons, the validator for that RadioButtonList fires and shows me the error message. I initially thought that maybe the various validators were cross-linked, so I tried clicking on a radio button in every list, but they all react the same. Here's the code that generates the whole thing:
[Code]....
Web Forms :: FileUpload Control And Custom Validator?
Oct 6, 2010I am having a strange issue.
I have a file upload control and a custom validator to check the file size.
When the file size is small and when I hit upload button it hits the breakpoint on the custom validator BUT strangely when the file size is big it does NOT hit the custom validator and see the following IE error.
Internet Explorer cannot display the webpage
Diagnose Connection Problems
Web Forms :: Custom Control Not Enter To Validator?
Apr 27, 2010what is the reason its never get in to the customvlidator event?
View 1 RepliesWeb Forms :: Custom Validator - Control To Validate?
Sep 15, 2010I am running the code below in a .net 2.0 content page.There are no containers such as wizard etc. When I click on the submission button for debugging purposes I get 'Nothing'. why I can't access the 'controlToValidate'?
Protected Sub validateCharacter(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs)
If Page.IsPostBack Then
Dim validationControl As CustomValidator = DirectCast(source, CustomValidator)[code]....
Web Forms :: Is Using Both A Required Field Validator And A Compare Validator
Mar 1, 2010When it comes to field validation, when I use a Compare Validator to make sure a date is a date or a numeric field has a number, I must also use a Required Field Validator to make sure there is something actually enetered. In other words, the Compare Validator allows a blank value even though a blank is not a date or number or whatever.
Is using both a Required Field Validator and a Compare Validator the way to do this or is there some way to make the Compare Validator also require input of some kind?
Web Forms :: Using A Session Variable As Web Form Validator Control
Apr 13, 2010I'm creating a session variable in my .vb file and I'm able to display it in my .aspx but I can't seem to use it as a control in my asp:CompareValidator. The only way I can think to reference it on the .aspx page is with <%=Session("MyVariable") %> but
such constructs are not allowed in a validator with runat="server". But it seems like the validator must have that attribute and value.
Really what I'm trying to do is validate a user-entered number in a textbox against the one populated in that same textbox from the database. If the user replaces the textbox value with a smaller one I want to show an error message and prevent submit.
Web Forms :: Validator Control Prevents Page Processing?
Oct 6, 2010I have at text box with a validator control which works fine (prevents letters being entered, only numbers)
However once it displays the error message I am unable to do anything else on the page, links don't work etc. I have to close down the window and start the website agin.
Web Forms :: Using RequiredField Validator For RadiButtonList In DataList Control
Sep 8, 2012I got a problem when using required field validator in datalist ,We have 4 polls. In that user must answer two polls which are required.I have added all the four polls in my datalist ,it is displaying fine and while clicking submit button the required field validator is working and giving the error message. Once we answered the required polls and clicking submit button again, all other polls which are not required showing as required one.My poll answer getting submitted thats not a problem ,I want to avoid displaying the error message for non-required polls.Here is my design and code:
<div id="pollQuestion_div" Class="read-messages-poll" runat="server" >
<asp:DataList ID="PollDataList" runat="server" onitemdatabound="PollDataList_ItemDataBound">
<ItemTemplate>
<asp:HiddenField ID="PollIDReqHiddenField" Value='<%# Eval("PollID") %>' runat="server" Visible="false" />
[code]...
AJAX :: Necessary To Give Control To Validate Control In Custom Validator
Sep 18, 2013Is it necessary to give Control to Validate control in Custom Validator?
If yes then why this will happen?
Web Forms :: How To Apply Styles On The Message Displayed By Required Field Validator Control
Sep 17, 2010I want to apply styles on the message (i.e. Name field is required) display by the asp.net required field validator control.
Styles=border, padding, background-color, font-color, font-weight, img etc
And I also want highlight the border or asp.net textbox and asp.net dropdown list with which this control is associated.
RequiredFieldValidator does not have style property !
Web Forms :: Trying To Create A Custom Control That Has A Dropdown List And A Required Field Validator In It?
Jan 19, 2011I'm trying to create a custom control that has a dropdown list and a required field validator in it.I've got as a far as being able to set the error message if the control fails to validate, but I can't actually get it to validate, not can I figure out how to call a .Validate method server side. This is driving me nuts!
To create my control, I followed the article here I ran the text box example through, and I can get that to validate without any problems, so I then went through and created a new set of class files relating to a drop down list.Anyone got any thoughts, or hints as to what might be wrong, or where I should start looking?
Forms Data Controls :: Dynamic Size For Chart Control / Using The Control In Web Application
Feb 22, 2010using the control in web application.
View 1 RepliesWeb Forms :: Dynamic Control Creation In User Control?
Apr 19, 2010i developed a custom control (inherited from System.Web.UI.UserControl) which is used within a Gridview's TemplateField:
<sc:MyControl
runat="server"
id="my_ctrl"
AllowEditing="true"
NumberOfControls='<%# Eval("Count")%>' />
"Count" is an integer value from the GridView Datasource.
Based on this value i have to create some LinkButtons dynamically in my custom control (in Page_Init), which works very well when the value for NumberOfControls is hard-coded.
My problem is that the value of "Count" is not available (NumberOfControls = null) during Page_Init and therefore i can't decide how many controls there should be generated.
Is there any way to pass databinded values to custom controls so that they can be used earlier (as if the values were hard-coded)?
Finding An Example Of A Validator Inside A User Control
Mar 30, 2010Is it possible to have a validator inside of a User Control? If so, does anyone have a snippet of code from a working example?
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