User control can not be added in to toolbox,Unless or until it is changed into custom control.(VS 2005.) Once i have changed user control into custom controls(Composite Controls,WebControls,Controls) then i can add it into tool box. These statement are correct?. or is there any possibility to add usercontrol in toolbox?
View 1 RepliesI have developed a User Control in inline code model and convert this into dll and try to add it into Visual Studio ToolBox. It shows error "There is no component found in the object.". It is showing actually because i have not added ToolBoxData attribute just before the class declaration, because there is no class declaration in the inline code model. I don't know where i have to add ToolBoxData attribute.
View 1 Replies I would like to use the gridview paging feature and have built a gridview with a user control. The data source has lots of columns, so to make it easier I want to return a LIST<MyObject> and just pass <Myobject> into the user control rather than all the data elements. Not sure how I access the object of the data source to bind to the control. Assume it would be during ondatarowbound.
Also, my guess is there is a better way to do this than gridview. I'd take either solution that allows me to have easy paging and pass the complete object into the user control
I don't think I understand fully how ASP.NET does inheritance of controls.I have a user control, ucBase, which has an asp.net label in the ascx file. Code behind references the label and it works fine during run time if the control is not a parent for another user parent.
If I have another user control, ucChild, inheriting from ucBase, the label in ucBase's code is always null. ucChild has no controls in its ascx fileThe server controls (like the label) needs to be declared in the ascx file and not created programmatically.What needs to be done for ucBase to see its own controls when it's a parent user control?
I have a calendar control where a user selects a date and then inputs info into a FormView control. Underneath the FormView is a GridView that shows all data from the SelectedDate on the calendar control. However, when the date is selected, all the information from the table ( from all dates ) is displayed.
[Code]....
And the code behind:
[Code]....
I want to create a map control which will be a server side control.I want to have it as a tool in the toolbox. The above control will contain providers that will fetch maps from the following sources:
1) WMS
2) Oracle Spatial DB
3) Google
4) MS Virtual earth.
How to create the providers for the different map sources? Then I hav to create different screens which will take the parameters and send them to the map preoviders. The map providers will send the generated map to a map control (could be a active X control) or something else. The map control should also be capable of performing standard functions like pan,zoom etc. Pls give some idea as well as source code on how to start with it.
I'm using Visual Studio 2008 SP1 for ASP.NET 3.5 development.But the SqlDataSource control is not visble in the Toolbox - Data section.When I drag in a GridView control, the smart task list asks me to configure the SqlDataSource control, so it is "in there somewhere"
View 2 RepliesI am running Visual Studio 2010. I do not see a label control in my toolbox HTML tab. How can I add it?
View 10 Replieshow to use password recovery control present in toolbox.
is there any other way to recover forgot password?
I have to access the parent form's controls inside an event handler method on my user control's code behind.
View 4 RepliesI have a web user control that represents a simple message box. It is used to display simple messages like "Item has been deleted", or "The item was saved successfully".
On the other hand, I have another web user control that represents the item in the form of an editable form (I made this a user control because this is used in two different pages). I want to embed an instance of the message box user control inside the editable form. I am writing this right after the @Control directive:
[Code]....
Instead of using @Register directives, I register the user controls in web.config and so far this has worked just fine.
With the above markup, the project compiles, but whenever I try to navigate to a page that contains this construct, I get an HttpParseException exception. Furthermore, Visual Studio states that the tack w7rc9:MessageBox doesn't represent a known control.
What am I doing wrong?
I've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
and on this page I have another user control (ucPageControl), I need to find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all?
I am trying to assign user control from another user control ..first time its binding control successfully but when we refresh the data its giving error
saying "Object reference is not set an instance".
how to refresh data from another user control ...
My senerio below :
1 Aspx page
2. User control
calling usercontrol databinding method from aspx page but once it get refreshed ,not allowed to bind it again..
Does anyone know why I can't add a subclass that inherits a control from AjaxControlToolKit to the ToolKit? I explicitly implemented IComponent which I didn't really have to since the IControl in the parent implements IComponent already. I'll compile the code, and try to add the DLL but I get the "doesn't contain any controls" error. I know this is a very specific error so there wasn't much help elsewhere.
[System.ComponentModel.DesignerCategory("Component"),
ToolboxData("<{0}:TabPanelWithDataBinding runat=server></{0}:TabPanelWithDataBinding>")]
public class TabPanelWithDataBinding : TabPanel, IComponent, IDisposable
{
//all the meat stuff
}
I delete a control(TextBox) from toolBox by accident, but not getting how to get it back at there please help me to recover.
View 1 RepliesI am using a login control from the toolbox currently. I have the following code that is invoked when the user click on the log in button:
Protected Sub Login_Authenticate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.AuthenticateEventArgs) Handles
Login.Authenticate 'To attempt connection to database. Prompt if fail Dim myConnection As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("connString").ConnectionString) Try myConnection.Open() Catch ex As Exception MsgBox("Cannot
connect to server", 0) End Try 'Prepare SQL command to query,update or delete from database Dim sqlComm As New SqlCommand("SELECT * from Accounts", myConnection) 'Execute SQL command Dim reader As SqlDataReader = sqlComm.ExecuteReader() 'Retrieve result from
reader While (reader.Read()) If Login.UserName = reader("Username") & Login.Password = reader("Password") Then e.Authenticated = True Response.Redirect("Management.aspx") End If End While 'Close the connection myConnection.Close() End Sub
Now my question is instead of using memebership table, I would like to do the authentication with my own sql server database and once the verification is done as shown in the above code, I want to activate the DestinationPageUrl. I tried using: e.Authenticated = True Response.Redirect("Management.aspx") to set the authentication to be successful after I am done with the verification but it still does not redirect.
I made a UserControl called SliderUserControl which contains two labels and a WebSlider (third party slider control) in a table. The labels left and right of the slider should give the value of the slider and (Maximum - value) of the slider respectively. So if the slider goes from 0-100 and is at 30 now, then the control looks like this:
Code:
30 ----|---------- 70
I accomplished this with some simple javascript, and it's all working just fine:
asp Code:
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="SliderUserControl.ascx.vb" Inherits="F1TimeTrials.Controls.SliderUserControl" %>
<%@ Register assembly="Infragistics35.Web.v10.2, Version=10.2.20102.1011, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb"
[code]....
I said, this works fine. If I use a Register directive that points to the SliderUserControl.ascx source then I can use it on my page and it works.However, I actually need three different kind of sliders, each slightly different from this 'base' slider. For example, one will work with integers, another will work with float point values, etc. So what I want to do is create three classes that inherit SliderUserControl, and customize it from there. So, for example, a slider that goes from 1 to 11 with only one label (without the extra second label on the right) could look like this:
vb.net Code:
Imports Infragistics.Web.UI.EditorControls
Namespace Controls
[code]....
And now I'm a little stuck... I can build this project, but the NormalSlider control does not show up in the toolbox as I'm used to from windows forms projects. I thought well, that's probably different for ASP.NET, but then I remembered that it DOES work for a different control. I have a class Grid that inherits a third party UltraWebGrid control:
vb.net Code:
Imports Infragistics.WebUI.UltraWebGrid
Namespace Controls
Public Class Grid
Inherits Infragistics.WebUI.UltraWebGrid.UltraWebGrid
'...
End Class
End Namespace
When I build the project now, the Grid control does show up in the toolbox! So that's a bit strange..However, I googled the problem of course and I figured out how to get a custom control (class inheriting a control) onto a page, and apparently I can use another Register directive where I need to specify the Assembly and the Namespace. As far as I know, the Assembly is just the current project (the control is not in a separate project) called F1TimeTrials, and the Namespace is either Controls or F1TimeTrials.Controls. So I tried both of those, for example:
asp Code:
<%@ Register TagPrefix="uc" Assembly="F1TimeTrials" Namespace="F1TimeTrials.Controls" %>
Now, I can type "<uc:" and Intellisense shows me the NormalSlider control. Great! However, when I place it on the page, it does not show up during design-time.
asp Code:
<%@ Page Title="" Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeBehind="SliderTest.aspx.vb" Inherits="F1TimeTrials.SliderTest" %>
<%@ Register TagPrefix="uc" Assembly="F1TimeTrials" Namespace="F1TimeTrials.Controls" %>
[code]....
There are no warnings or errors or anything, but the control isn't there.When I run the project, it throws a null-reference exception in the Page_Load event of the NormalSlider class. Apparently, Slider (= the WebSlider third party control on the base class) is Nothing. I don't get it... How can it be Nothing in the Page_Load event? Should I call some method that creates the control in the base-class first?
I downloaded and installed AJAX Control Toolkit, following this link
http://www.asp.net/ajaxlibrary/act.ashx.
The tab doesn't show on the Toolbox. I right clicked at the Toolbox and select Show All. The tab and the controls shows up but all controls are gray out, look like disable. How can I make enable?
ive used the Ajax Control Toolkit in previous versions of VWD but for some reason im having trouble adding the Toolkit to the toolbox in this new version (2010) i have setup on my laptop, when i browse to and select the .dll file it gives me the error "Object reference not set to instance of an object" can anyone please help ive been trying to fix this issue for a little over an hour now.
View 1 RepliesI'd made a WebUserControl called Matrix, this UC inherits from the Gridview control. The Matrix User Control has 9 properties, which of 3 properties are the DataSources DataTables). The 3 DataSources are the RowSource, ColumnSource and DataSource. Together they form an gridview with labels (name of column) at the header of each column, a abel (name of row) at each first cell of a row and rest of the cells on each row are checkboxes. This forms a kind of Matrix, that's why I named it so.
I drag the Matrix User Control on a new .aspx page, for example Index.aspx. In the Page_Load event I set the 3 DataSources and DataBind the Matrix Control. Then the Matrix is build up correctly.The user can now edit the gridview by checking or unchecking the checkboxes. I also have a 'Save' button on the page which has an ID 'cmdSave' to save the changes.What I wanna do is: I want to have a Method within the User Control which gives me back a list of checkboxes which are checked. But when the OnClick event of the cmdSave button is fired, the data of the User Control is null/empty. And how do I get the changedHow can I fix this and build a method which gives me a list of checked checkboxes?If not everything is explained clearcly,
I have a user control that I am trying to make a function to return the site name www.siteName.com for my page but every time I try and use Request.Url.AbsoluteUri;
I get an error:
System.NullReferenceException: Object reference not set to an instance of an object
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 have a website the main page holder is placed within an iframe - everytime I navigate to a page from the menu a new page id is set within the frame. I have a left hand panel seperate to thee i frame which is a usercontrol and is static. I'm trying to capture the main iframe pageid from within the usercontrol.When I navigate to to a new page - the iframe is updated but the usercontrol is not, and im struggling to think of how I can grab frame id from within the usercontrol.
I've tried setting trhe page id as a session variable but this isnt accurrate enough. I need to grab it as as soon as a new page is hit.
Is there a way to search the Toolbox for a specific control?
View 3 RepliesI have project A, which is a class library project. I compile it and it creates a dll. In my project B which is a web application project, I add a reference to the A.dll, and I click on toolbox and select choose item, navigate to dll, and click on it. The control does not show up on my toolbox. When I right click my toolbox and select "show all", the control is there, but it's grayed out. I have been searching for an answer to this for a couple of days now, nothing changes.
View 3 Replies