Web Forms :: Extend TextBox Control To Include A BaseValidator Control?
Mar 31, 2010
I have an implementation of a textbox which inherits from the TextBox control. It currently has some features built in to validate text by some JavaScript that is injected when the control is created. I want to modify this so that the control uses the ASP.NET validation controls (eg. RequiredFieldValidator) instead. Is this possible? Is there a place in the lifecycle of the control where I can programmatically create a BaseValidator control and add it to the form? I want to implement this in my textbox control, rather than each specific page that the textbox is on.
I am trying to included a rating control in a composite control that renders many different type of controls. I render the controls by overriding the rendercontents so that I can control the layout of the controls. When I try to add the rating control to the output i get a Page cannot be null error. Can someone provide me with the proper way to render a rating control from a composite control and be able to control the layout of the child controls.
I'm trying to create a user control class that extends Panel. Essentially, what I want to do is to have a panel that fires off an event whenever it's clicked upon.
So, I create something like this:
[Code]....
And then, in the ClickPanel.ascx.cs file:
[Code]....
I'm not exactly sure whether this would work as I haven't had the opportunity to test it yet.
The problem is that I can't have a class inherit from Panel. Creating a user control class requires that my class extend User Control - at least that's what the error messages have been saying up until now. The problem is that if I do extend it from the base class of UserControl then I lose all the functionality of the Panel itself and the entire thing is rendered pointless.
All I would like to be able to do is include one user control within another! Is this possible? I have spent the last hour searching the internet and it seems that I can't find a single thing.
In classic ASP it would be something like: <!--#include file="EditProject.ascx"-->
I tried this but no luck!
Parser Error Message:
There can be only one 'control' directive.
Source Error:
[Code]....
Line 1: <%@ Control Language="VB" AutoEventWireup="false" CodeFile="EditProject.ascx.vb"Line 2: Inherits="Controls_WebUserControl" %>Line 3: <form runat="server">
I want to use the all the default functionalities of autocomplete control from toolkit, also want to customise it.For e.g. i want to add few more properties to it or customise the servicemethod parameters.Is there any way to do it?
Im using the asp.net membership provider and I would like to know how to add fields for a first name, last name, and phone numbre on my registration page with the CreateUserWizard Control ando also how to insert this new data to tha membership database table. I already created the culumns for these but I don't know how to insert the new data from the CreateUserWizard Control.
I'm building form validation controls for our C# ASP application. The bulk of the work is handled by a BaseValidator control (subclassing System.Web.UI.UserControl), which also has the markup for the validation output. This is then extended by subcontrols like PasswordValidator, that provides the Validate method and any extra fields needed by that validator control.
(The end goal is to have controls like <uc1:PasswordValidator ControlId="txtPassword" /> which we can plop into any form with minimum duplication.)
However, PasswordValidator.ascx.cs cannot access the form elements defined in BaseValidator.ascx; the only way I've found to do so is to duplicate the markup in each subcontrol's *.ascx file. How can I extend BaseValidator.ascx.cs and access BaseValidator.ascx's markup in the subclass?
I was working with treeview and bumped into this problem where i need to add child nodes to a treeview control,these child nodes are a combination of textbox and button control so that
i should be able to save the text as new child control,i tried overiding the pre render and post render text but didn't get the solution.
I have a combobox (DropDownList) control in my aspx project, linked to a datasource. I would like to show more than one field on the dataTextField (like in MS-Access). It's possible? How can I do it?
How can I get all the textboxes inside a create user wizard control using getElementsByTagName().
Below is my JQuery code:
[Code]....
The above code isn't displaying hint text when the textbox retreives focus.
I think there is something wrong with this getElementsByTagName("asp:TextBox"); , I have also tried getElementsByTagName("TextBox"); , getElementsByTagName(":textbox"); and getElementsByTagName("input"); .
But no one of them gets the textboxes array.
Can anyone tell what will be the correct syntax for getting all the textboxes inside a create user wizard control using getElementsByTagName()?
I am using AJAX ComboBox control (or I can use simple ASP.NET DropDown Control it does not matter) in my form. What I do is, I bind combo box control to my database and retrieve client names:
[Code]....
But here is the problem. I want First and Last names to go into separate TextBox controls (txtFirstName and txtLastName). Now it inserts Last Name and Firts Name in txtLastName control. At the same time I would really like to keep LastName + FirstName together in Combo Box.
I need to validate textbox so that it will contain only numbers or comm or dot, or any combination of them. I can validate them to include only digits..
I need to create a user control. This control is so simple. It consists of a "Label" control and a "Textbox" control. The purpose of this control is just to be dropped onto a web page and have a user enter a single value into the textbox portion. This is the only code I have in the code-behind page of the control.
Public MustInherit Class AlbumName Inherits System.Web.UI.UserControl Private _text As String Public Property Text() As String Get Return _text End Get Set(ByVal value As String) _text = value End Set End Property End Class
I would like to put a recognized event such as a KeyPress event in this control so that I can validate the users input.
I have a ListView (in an update panel) bound to an ObjectDataSource (connected to an NHibernate object) and in the EditItemTemplate I use Text='<%# Bind("HideLocation")%>' to bind to a string property of the object.
When I click edit (twice, another issue I'm having) and view the code in Chrome, the output looks like this:
[code]....
why the value of the bound data (in this case: In locker 2317) is showing up outside of the text box instead of as the contents of the data?
I have written a Web Page which allows Club members to send a message to Committee Members. The Input Page is a Details View which allows input of the Members name, Email Address and a text message - this is stored in a SQL Table.
Currently the Page then sends an email to Committee Members which advises that there is a message on the website. The Committee then have to log on and access the Message page to read the message.
I would like to include in the email the content of TextBoxes from the Details View.
The Code I am currently using for sending the email is below
Imports System.Net.Mail Partial Class NonAdmin_ContactUs Inherits System.Web.UI.Page Protected Sub ContactUs_ItemInserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewInsertEventArgs) Handles ContactUs.ItemInserting e.Values("Date") = DateTime.Now Dim textSubject As String = "New Message" Dim textBody As String = "There is a new Message on the Malling Photographic Society Website. Please advise the rest of the Committee if you are handling this message" Dim mailMessage As New System.Net.Mail.MailMessage Dim MailClient As SmtpClient = New SmtpClient mailMessage.From = New MailAddress("jpoll@sky.com") mailMessage.To.Add(New MailAddress("committee@yahoogroups.co.uk")) mailMessage.Subject = textSubject mailMessage.Body = textBody MailClient.Send(mailMessage) End Sub End Class
Am using a ascx page i want to add a textbox control but its giving me the error like " Control 'TopFront1_TextBox1' of type 'TextBox' must be placed inside a form tag with runat=server.
