Web Forms :: Controlling The ValidationGroup And ValidationSummary With JavaScript And C#?
Jan 13, 2011
I'm new to programming and recently spent some time navigating these forums and searching google to learn how to manipulate Validations with ClientValidationFunction using JavaScript and OnServerValidate with C#. Now that I have a decent handle on it I wanted to give back a bit. I hope some of you all can use this information. Mess around with it and see what its doing and how.I'm using Visual Studio 2008 as my IDE. I did not include a master page so just copy and paste, set break points, and add a watch to the following:
I have an ASP.NET TextBox ID="txtDate" in my usercontrol. It has ValidationGroup="MyUC" set. Now my UC is inside a Repeater Control. So there will be multiple instances of the same textbox. I am able to get all textboxes like: $("[id$='_txtDate']");
Each of the txtDate will have a separate ValidationGroup assigned to it, dynamically. So I want to get a textbox based on the id + ValidationGroup using jQuery / javascript.
Edited based on Josiah's Reply and the way I found:
my scenario is kind of complicated to include entire code. In short the textboxes are attached to jquery datepicker and the code below runs when a date is selected. The same handler is attached to multiple textboxes. Here is what I have:
var valgrp="MyGroup"; /*this mygroup is dynamic but keeping static for e.g.*/ var txtdate1 = $("[id$='txtDate']").filter(function(){if(this.Validators!=null){return this.Validators[0].validationGroup == valgrp;}}); var txtdate2 = $("[id$='txtDate']").filter(function(){return this.validationGroup == valgrp;}); alert("date1- " + txtdate1.val()); /*this returns date selected from datepicker*/ alert("date2 " + txtdate2.val()); /*this returns empty*/
Depending on the date I want to do something else. So txtdate1 is currently working for me where I don't have to add class to my textbox. I was playing with the txtdate2 which isn't behaving how I was expecting and so I had to post this question.
Here is a sample test to see this.validationGroup not returned:
I have a button on which I wish to validate a specific ValidationGroup in ASP.NET. This button is not a server control, but a standard a tag with an onclick event on.
I have multiple validation groups on this page, so by calling Page_ClientValidate() is not enough, as the other validators will kick in as well.
I am successfully including a javascript resource by calling ScriptManager.RegisterClientScriptResource at the end of OnPreRender in my custom control. However, the resulting script tag is being included before the automatically included script tags that define things like Type and Sys which my script depends on. I thought they were defined in the order that they are included but I can't include my script any later then I am. How can I control the order in which the script tags are included?
Button1 works fine, it causes the validator to work. Button2 works fine, it doesn't cause the validator to work because it's CauseValidation=false But, Button3 in Repeater1 items doesn't work as I want, it still fire the validation of the validator.
is there a way to add a validationgroup to a fieldset, this way i do not have to add a validationgroup attribute to every single validator within that fieldset?
I have an AJAX TabContainer. Each tab I have a ValidationSummary control with different ValidationGroup name for each tab. The problem is, now nothing show sup in the ValidationGroup when q required field is blank. The web form won't get submit but there is nothing displaying on the page either. All the RequiredFieldValidator are not showing in the web form either. All the RequiredFieldValidator controls are set to use the correct ValidationGroup too.
Is it possible to control a web page from another web page. ?My scenario isI have a page (UI1). It has a hyperlink. Clicking on the same it opens another seperate UI (UI2). UI2 also have a hyper link.My question is , is there any way that I can control UI1 from UI2 using this hyper link
I have a user control that has multiple instances on a single page.
Is it possible to have each instance use a unique ValidationGroup? I could expose a property, but I'm wondering if there's any way to do it automatically.
I have to customize a validation scheme for my form because required validation is only necessary if 2 other conditions are met; I have this figured out, but is there a way to add the messages to the ValidationSummary Control using C#
I have a Gridview control on my webpage which is loaded using a GridViewTemplate dynamically. I have added FormatValidators toemailaddress, date type data fields. I also have a ValidationSummary control to show the error summary at the bottom of the page.Now, on the webpage, when a user enters incorrect data into two emailaddress fields, the ValidationSummary control summarizes the error messages and shows same error message twiceone per row. I think this is a standard behavior of the ValidationSummary control.
My question is, is there anyway to show the error message only once per column i.e. even if two email address fields are incorrect, the error message shown by validationsummary will appear only once instead of twice? I am referring to showing the validationsummary once per column of gridview instead of once per row...
The validation control will validate if I set the Display to Dynamic or Static, but it won't display the error text in the ValidationSummary when the onBlur event is fired (its fine if the form is submitted using the button). Does anyone know if this is a restriction of using the ValidatorValidate function or am I doing something wrong?
<asp:RangeValidator id="RangeAmountDeposit" runat="server" ErrorMessage="Znesek za vplačilo je premajhen!" ValidateEmptyText="True" ControlToValidate="AmountDeposit" ValidationGroup="ErrormessageValidationGroup" MinimumValue="1" MaximumValue="10" Type="Integer" Display="dynamic "/>
ValidateEmptyText="True" - not works.
I want to display text only ValidationGroup = "ErrormessageValidationGroup" and add a picture next to AmountDeposit (view image): <asp:Image ID="Image12" ImageUrl="~/Images/warning.png" ImageAlign="TextTop" runat="server" />
I'm sure you've seen sites that display a portion of the available text in a limited space followed by an ellipsis or a [more] link. That's what I need to do. The text is in a database field, and includes carriage returns and line feeds. I can't just count the number of characters. How can I only display the text that will fit in a defined space? I've tried using a panel control with the height defined. I've also tried a div with the height defined. Neither has worked. How is this done?
I have some custom validation that occurs outside of the built in ASP field validators and I want to update the contents of asp:ValidationSummary section in my document. Is this possible? Is there a reccomended method for doing it?
When my validation fires on my web form, the validation summary writes out the same error message for each control that was in error twice! I have no validation groups in my web form.Here is my html for the Validationsummary control.
<code>
<asp:ValidationSummary ID="ValidationSummary1" runat="server" DisplayMode="BulletList" ShowMessageBox="true" ShowSummary="false" EnableClientScript="true" HeaderText="You must enter a value in the following fields:" />
