473,382 Members | 1,733 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,382 software developers and data experts.

Skinable web forms

SOS
Hi ,
i am trying to write a skinable web site.
i created several user controls for variuos operations such as login , page
navigation and etc.
how can i load some "custom controls" in these "user controls" ?
i use of Page.LoadControl method on these user controls but i get this error
: "object reference not set to an instacne ..."
what's the problem ?

Thanx
Nov 18 '05 #1
2 1059
one
I can see what you are trying to do

According to msdn help, the 'LoadControl' method takes (string virtualPath) as the arguement. And the 'virtualPath' specified the 'virtual path to a user control file

That means you cannot load 'custom control' that way

You can try doing something like this (in your user controls)
MyCustomControl mcc = new MyCustomControl()

You can also consider using Rendered Custom Controls, which you can programmatically stream out html.

HTH
Nov 18 '05 #2
Interesting fact...
LoadControl worked well for me
(Page.LoadControl("~/subfolders/UserControl.ascx"),
but when I tried programmatically add it like this
dim ucMyUserControl as UserControl
ucMyUserControl = new UserControl
I got "reference to null" error...
How come?
So what's the way to create/load UC dynamically according to language
reference? Thanks.

--
With the best wishes,
Shaul Feldman

"one" <on***********@onlins.nospam> wrote in message
news:0B**********************************@microsof t.com...
I can see what you are trying to do.

According to msdn help, the 'LoadControl' method takes (string virtualPath) as the arguement. And the 'virtualPath' specified the 'virtual
path to a user control file'
That means you cannot load 'custom control' that way.

You can try doing something like this (in your user controls):
MyCustomControl mcc = new MyCustomControl();

You can also consider using Rendered Custom Controls, which you can programmatically stream out html.
HTH

Nov 18 '05 #3

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

Similar topics

19
by: James Fortune | last post by:
I have a lot of respect for David Fenton and Allen Browne, but I don't understand why people who know how to write code to completely replace a front end do not write something that will automate...
3
by: Joshua Russell | last post by:
Hi, Both the methods below open up a windows form called MasterForm. However, one works better than the other. Method 1 opens the form correctly but I don't have any reference to the instance of...
2
by: SOS | last post by:
Hi , i am trying to write a skinable web site. i created several user controls for variuos operations such as login , page navigation and etc. how can i load some "custom controls" in these "user...
7
by: Mike Bulava | last post by:
I have created a base form that I plan to use throughout my application let call the form form1. I have Built the project then add another form that inherits from form1, I add a few panel controls...
13
by: MD | last post by:
I have been converting a program from VB6 to VB.Net and enhancing it as well. All has been progressing OK although its been hard work. Now, all of a sudden, when I try to execute a ShowDialog()...
15
by: Joshua Kendall | last post by:
I have a script in which it keeps opening the same form instead of only one instance. I also need help with a form that has a password. Where do I put the actual password? can I use a database for...
3
by: Lloyd Sheen | last post by:
I have the following situation: Need a user resizable user control. After much trying with user control I came across the idea of hosting the controls in a form marked as not TopLevel = false. ...
8
by: Stephen Rice | last post by:
Hi, I have a periodic problem which I am having a real time trying to sort. Background: An MDI VB app with a DB on SQL 2000. I have wrapped all the DB access into an object which spawns a...
3
by: Geraldine Hobley | last post by:
Hello, In my project I am inheriting several forms. However when I inherit from a form and add additional subroutines and methods to my inherited form I get all sorts of problems. e.g. I sometimes...
1
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
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...
0
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...
0
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...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
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...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

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.