473,385 Members | 1,602 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,385 software developers and data experts.

Loading UserControl From Web Component Library Posted


i have developed a web componenet library project, which
access the usercontrol that resides in another web
application. In my component, I load the control like

Dim uCtrl As New UserControl
uCtrl.ID = "NestedGrid"
uCtrl.Visible = False

Now, when I use the component in my webform and try to
cast the usercontrol to a class, then it returns me the

Specified cast is not valid.

Here is how I cast the control from my ItemCommand:

Dim ctrl As UserControl = AADataGridStores.Items
'Dim ctrl As Object = AADataGridStores.Items
Dim obj As New myfileClass
obj = CType(ctrl, myfileClass)

I am 100% sure that this is the correct class, because I
added it. I dont understand why I getting the above error.
Can anybody help me out?


Jul 21 '05 #1
0 1133

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

by: steve bull | last post by:
I created a usercontrol class, RGBColorSpace, which is derived from an abstract class, ColorSpace, but when I try to click on the design panel for the control I get an error message "Unable to...
by: John | last post by:
Hi all, I'm having a little problem understanding the concepts of dynamically loading/unloading user conrols: 1. If I have a couple of usercontrols embedded within a few tables cells on my...
by: Sundaresan | last post by:
I've a form where I load two user controls dynamically. User Control-1 has a no.of dropdowns and based on the selection I typically populate a datagrid in the user control-2, Also the I could...
by: Harry | last post by:
Hello, I have a page with a RadioButtonList and a PlaceHolder control. The RadioButtonList's AutoPostBack attribute is set to TRUE and its SelectedIndexChanged event loads one of three...
by: anonymous | last post by:
Hello, i have developed a web componenet library project, which access the usercontrol that resides in another web application. In my component, I load the control like this: Dim uCtrl As...
by: Gary Shell | last post by:
I am experiencing some strange behavior between a UserControl's validating event and a treeview control. Initially, I thought it was related to an issue in the Knowledgebase article 810852...
by: Joe | last post by:
Hello All: Do I have to use the LoadControl method of the Page to load a UserControl? I have a class which contains three methods (one public and two private). The class acts as a control...
by: Tim B | last post by:
Hi, Previously I was loading my .NET Usercontrol like this : <OBJECT id="Obj" classid="Viewer.dll#Viewer.Viewer" width=105 height=20 VIEWASTEXT><param name="DONOTHING" value="1"> </OBJECT> ...
by: Adam Biser | last post by:
My apologies if this has been discussed before, but using Google and also searching the newsgroup has not given me any insight to this problem. I'm experiencing some strange behavior when I copy...
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...
by: ryjfgjl | last post by:
In our work, we often need to import Excel data into databases (such as MySQL, SQL Server, Oracle) for data analysis and processing. Usually, we use database tools like Navicat or the Excel import...
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.