I've created a WYSIWYG HTML editor. I have an ImageButton whose onClick event is supposed to set the value of a hidden form field called txtHTML to the HTML content of an IFRAME called editor. Here's the code that is supposed to set the value: document.EditorForm.HTMLEditor_txtHTML.value = ed...more >>

I created a user control called MyToolBar which is a toolbar with a preset number of buttons such as Close, Add, Edit, Delete, Find etc. When the user clicks on the Find button, in my Button_Click procedure how do I pass a message to the appropriate form such as Vendors that the button was click...more >>

Hello This is my 1st project where I have to create a Webcontrol. I have created a simple custom control with a button and 2 labels added to a panel. My problem is that the event handler that I have assigned to the button [private void btnSubmit_Click()], is not getting invoked. Could anyone pleas...more >>

Hi I want to create a custom tab web control, drop it into an asp.net page as shown below, that will create a set of tabs and will generate client-side script and DHTML to toggle the tabs, show/hide panels ("div tags") etc. I would also like to expose a set of properites to set font, tab color, w...more >>

Hi I want to customize the look & feel of scroll bar which appears for controls like Textbox, ListBox, ComboBox etc. Is there any way to achive this in .NET I could not see any direct ways to replace the default scrollbar with my own Thank Prashanth...more >>

Hi, My web page loads the controls dynamically using Page.LoadControl("~/myControls/myControl.ascx") The control myControl.ascx contains several controls with following ID's : "_content1", "_content2", "_content3", ... Once the control myControl.ascx has been loaded into the web page, the...more >>

Hello... I the following class deriving from CollectionBase: ============================ public class YYYepC : System.Collections.CollectionBase { int i = 9; [DefaultValue(4)] [PersistenceMode(PersistenceMode.Attribute)] public int I { ...more >>

Hi I'm currently using Public Class Template Inherits Control Protected Overrides Sub Render(Writer As HtmlTextWriter) Writer.WriteLine ("...") Controls(1).RenderControl(Writer) Writer.WriteLine ("...") End Sub End Class in one of my controls. ...more >>

Hi,=20 How do I dynamically add linkbuttons and wire them to same event? I am = able to add linkbuttons but they do not fire the event. Does anybody = have a working sample? Many thanks, Linda...more >>

I have the following A class called PageHeader that derives from WebControl. The PageHeader class defines a property called ForwardButton As ForwardButtonProperties. This ForwardButtonProperties class TypeConvertor is the ExpandableObjectConvertor. I have defined several properties in the Forwa...more >>

(Type your message here) Hi, I have a problem with a control (C#) found on the web wich= implement a masked text box (derived from TextBox) in a dll= file=2E It has a property 'Masked' implemented as an enum that= alows you to select the mask you want (none, date, phone, digit,= decimal ...more >>

Hello, Can someone point me in the right direction on how I can build an image control in VB.NET. I would like this control to be used in either a windows form application or in a web application. Is this possible to do? I am finding it very difficult to obtain good information on how t...more >>

I can't figure out how to find the Form for a MenuItem is on using a reference to the MenuItem only? I'm looking for something like the FindForm method for controls. I finally figured out how do do it for components (see below), but I can't figure out how to do something similar for menu items....more >>

Trying to think through how to create a server control (or user control) that renders some HTML plus any needed images. The rendered HTML would include IMG tags with URLs that point back to the same page in such a way that my server control would have a chance to render the image as well. There...more >>

I can get the WebBrowser control (shdocvw.dll) to run great on a form using either C# or VB.net but if I try to include it in a user control and then drag the user control onto a form in another project, it doesn't work at all. Are there some pitfalls in doing this? Thanks for any insight that ...more >>

I have a general question what the best practice is passing along values from an aspx-page to a user-control. Let's say I call an aspx page like this: myaspxpage.aspx?id=5. On that page I use Request.Params to store the id value in a variable. But i also need that id value in the user-contro...more >>

I am binding a radiobuttonlist to a datagrid on the ItemDataBound event. See code: Sub dtgAccesSite_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles dtgAccesSite.ItemDataBound Dim radAcces As New RadioButtonList r...more >>

Hi, I am developing a custom control that inherits from the datagrid. I want the normal functionality of the Datagrid, then several buttons created underneath the grid (not in the footer or pager). In my basic example below I am creating a single button in the overridden CreateChildC...more >>

How can I obtain the value of a text box in an usercontrol from the aspx page ? I'm using VB and WebMatrix and am presently learning asp.net whilst struggling with the OO concepts... Thanks Murphy ...more >>

Hi I am building a calendar control with an functionality to change year. so, i have a dropdownlist box populated with years. When the user change the year in the dropdownlist box accordingly i addyears to the calendar control. Now, the problem is how shld i refresh / redraw the calendar...more >>

Hi Everybody, I have a composite control (in C#) which creates a DataGrid child control that binds to a DataSource (DataSet resultant from a sql query) passed in by the consuming .aspx. The .aspx page does the typical... if (!Postback) { //define datasource and bind } My question is ho...more >>

I'm seeking ideas for custom web controls. Ed ...more >>

Hi, My control works fine unless until i add dropdownlist box. When i add dropdownlist box to control and try to test that control in my aspx page it gives the following error. =================================== Specified cast is not valid. Description: An unhandled exception occurred dur...more >>

Hi, I have an user control(.ascx) file with one Text Box and a Regular Expression Validator. I wrote property in the User control Code behind (C#) to set the ErrorMessage for the RegularExpressionValidator. Now, I want this property to be displayed int the "Proeperties Window of the User control" ...more >>

Hi, Can anyone help me to build custom control for the following <HEAD> <LINK href="~/Styles/Blah.css" rel="stylesheet" type="text/css"> <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1"> <meta name="CODE_LANGUAGE" Content="C#"> <meta name="vs_defaultClientScrip...more >>

I am not using (can't use) vs.net to create my asp.net pages - I am using dreamweaver MX (essentially using it as a glorified notepad). I am using C#. Pages involved: header.ascx - an in page (ie not a code behind) user control default.aspx - an asp.net page default.aspx.cs - a code behind...more >>

Is it possible to use c# and .NET to create a COM+ object that can be accessed in classic ASP/VBScript using Create.Object ? -- W '04 <:> Open...more >>

In my web control code I define an enum: public enum LayoutDirections { Horizontal, Vertical }; In my demo web application I get and set an enum value like so: T.LayoutDirection = T.LayoutDirections.Horizontal; When I compile the web app which uses the web control I get: Int...more >>

Hi Everybody, I have a composite control (CompositeControl) which uses an instance of the DataGrid (DataCtrl1) as a child control. The DataGrid is dynamically created in the CreateChildControls() method of my control and is responsible for rendering a list of web sites. The DataGrid also g...more >>

Hi All I'm creating an application and I want to add images to a dropdownlist in asp.net using C#. Can anybody help me with this plz. Koen ...more >>

Sorry, this is a 2nd post related to this problem, but I've now set up my MSDN e-mail id, so I wanted to post with this e-mail. I'm trying to build some custom controls/components for use with ASP.NET. I have ControlParent (I've tried this where ControlParent is a Control, and also where it's ...more >>

I want to create a custom datagrid control that uses XML data islands to control the data client side with editing. I am trying to inherit the minimal for implementing this server control and would like to derive from BaseDataList. Does anyone know what I need to put in the two abstract methods ...more >>

Hi, I would like to use user controls such that my complete site contains just only user controls, but aspx pages which hold them. i would like to have only one aspx page for diaplaying the controls, but dynamically i would like to load each control based on some criteria and display only one at a...more >>

I have a custom list control that allows other controls to be added to it dynamically. I want to be able to maintain the custom list of controls on postback. I tried storing each added control into a ViewState element, but the WebControl object cannot be stored in ViewState (I get an exception ...more >>

Hi group I developed a custom control wich use some shell functions, I've added reference to shell32.dll, defined wrap for some interfacee and declared my shell32's functions I need. Now it work fine in a test form, and load and shows in a asp.net form. But when it need to use shell32 functi...more >>

Who can explain me why this very simple UserControl with the "Document" property, when is in a WebForm, I can't see/set the "Document" property from the Properties Frame of VisualStudio? WebUserControl1.ascx <%@ Control Language="c#" AutoEventWireup="false" Codebehind="WebUserControl1.ascx...more >>

Does anyone know how to postback to an inherited custom control from a pop-up window? Thanks in advance. ...more >>

Hi I'm creating an asp net application with dynamic controls, I have a dynamic tabstrip and multipage and each page is filed with several controls types based on SQl database.( The code that create them in in the Page_Init ) The problem - When I first load the page everything works OK and wh...more >>

H I want to make an ascx control with a DataGrid on it and make its bindings generic by using an ascx control, is there any way I can give each ascx control its own 'properties', like I want to make each instance of it a different forecolor, and I also want to give each one a different dataset (alt...more >>

Attached is an article on how to create a textbox control with built in = validation. See = http://www.codeproject.com/aspnet/SelfValidatingTextBox2.asp?df=3D100&for= umid=3D33309&select=3D792375 Check it out. Any help would be greatly appreciated. You might even = value the control discussed...more >>

i would like modify font texybox in verdana in onpage_load textbox.font=? ...more >>

Hi, I want to develop a custom checkbox. I want to use the existing checkbox in a custom control where I use the disabled state as a third state. I need to be able to detect mouse or click events in the disabled checkbox or the parent custom control. Is this possible? How does a contro...more >>

The basic life cycle is (hopefully I am correct): OnInit LoadViewState LoadPostBackData* (loads controls with postback data) OnLoad (form load) RaisePostDataChangedEvent* (controls raise data change event here) RaisePostBackEvent* (controls rais...more >>

Hello, I have a custom control that overrides the base class render method. From the Render method I got a call to the follwing method in the code snippet below, problem is that the textbox gets rendered, but not the validator, it's simply only leaving a span in the html page which prints the ...more >>

I'm trying to build serval custom controls and I'm havinig trouble maintaining their viewstate. So I wanted to back it up to the most basic level - and now I'm more confused than ever. I have a web form where I've overridden two methods: Protected Overrides Function SaveViewState() As Object...more >>

Can anyone tell me how to reference a a control, e.g. a control I have added to the controls collection without specifically naming it. Also can anyone give me some pointer on how to attach events to them. Regards. ...more >>

Using code-behind, I have a page "index.aspx" that has a user control mainHeader.ascx (with a language selection dropdownlist). Upon selecting a language from the dropdownlist, it should post back OnSelectedIndexChanged to a Sub "languageSelect" in the index.aspx.vb code-behind. The variable ...more >>

Hello, i want to make a server control for my ASP.NET page which should have = its own window in the page and should have scroll bar and should be = capable of containing html in it.=20 any one if can guide, i will be very thankfull to him....... thanks Software Developer Chemmed Co...more >>

I have two listboxes, the first of which is an autopostback=true that allows multiple row selection. When I select multiple values (by holding down CTL) in the first one, it should query the second one. I seem unable to do this as it only sends back the first item I select whether I have the CT...more >>

Hi, I tried with "Developing a Simple ASP.NET Server Control" from MSDN a http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconwalkthroughdevelopingsimplewebformscontrol.asp But I saw "Error Creating Contro - Firstcontrol1" at the design tim and when I try to run ...more >>