473,840 Members | 1,642 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Designer error "could not find type..."

I've got a project I've been working on for a few weeks. I've been using
the BindingSource control - I've got four of them on this particular form.

This morning I went to view the report in the designer and got:

Could not find type 'LandarcBL.Budg et'. Please make sure that the
assembly that contains this type is referenced. If this type is a part of
your development project, make sure that the project has been successfully
Hide Edit

System.Componen tModel.Design.S erialization.Co deDomSerializer Base.Error(IDes ignerSerializat ionManager
manager, String exceptionText, String helpLink)
System.Componen tModel.Design.S erialization.Co deDomSerializer Base.Deserializ eExpression(IDe signerSerializa tionManager
manager, String name, CodeExpression expression)
System.Componen tModel.Design.S erialization.Co deDomSerializer Base.Deserializ eAssignStatemen t(IDesignerSeri alizationManage r
manager, CodeAssignState ment statement)
System.Componen tModel.Design.S erialization.Co deDomSerializer Base.Deserializ eStatement(IDes ignerSerializat ionManager
manager, CodeStatement statement)
When I click Edit it takes me to the MainForm.Design er.CS line:
this.budgetBind ingSource.DataS ource = typeof(LandarcB L.Budget);

When I hover the mouse over LandarcBL.Budge t is shows me the intellisense.
It's finding it just fine of course.

I can hit F5 and run the form just fine. I added another form, added a
BindingSource, set its DataSource to the same class and that form loads in
the designer just fine.

This morning I did a bunch of stuff - ran the form, closed VS, and I don't
know what else, and it started working again. Now none of that is having
any affect.

I've found many reports of this problem with google but no real solution to
my exact circumstances.

Anyone have any ideas?
Jan 6 '06
11 6587
Yeah, my fix was temporary. And I've seen that one too where the
DataGridView goes off wild reloading all the columns even though I've
explicity set them already.

The BindingSource bindings are getting hosed about once or twice a day, and
I have to go through the procedure of removing the binding code and then
resetting it. I'm not going to use the IDE any more for that either (at
least as a permanent setup).

It's pretty pathetic though because that destroys a big chuch of the benefit
of using the BindingSource components in the first place. You have to
wonder how such significant bugs get through.

"Marc Gravell" <mg******@rm.co m> wrote in message
news:ep******** ********@tk2msf tngp13.phx.gbl. ..
Not to mention the bug where the IDE gets confused and thinks there are
multiple "column1" (etc) definitions and then refuses to load...

I've only really used this approach with objects. Generally I find that if
I lay the bindings out *once* in the IDE (and then cut the bindings code
etc), I actually find it *easier*, not harder, to use. I can live without
seeing the bindings at design time (re your grid point, most of the time
when I am using columns, the exact columns and sequence is dynamic anyway,
so the designer isn't much use), and I find that not having all those
extra variables around makes life much easier.

And yes I know you can turn off the variable declaration in 2005 (for some
elements), but they still annoy me. Another benefit of the approach of
cutting the binding code is that I can essentially write a void
SetupBindings(B indingSource source) method, and bind via that from the
calling code; this means I can then share a BindingSource at runtime,
which allows me to do some very neat things:
* Multiple non-modal forms all using the same cursor position without any
extra code
* Complex forms where each tab has been written as a control; each control
can (again) use the same BindingSource

It means I have a lot less code to mess with when I change the current
object being displayed.

Now... back to reading your OPF stuff... <g>


"Joanna Carter [TeamB]" <jo****@not.for .spam> wrote in message
news:er******** *****@TK2MSFTNG P12.phx.gbl...
"Marc Gravell" <mg******@rm.co m> a écrit dans le message de news:
uI************* *@TK2MSFTNGP15. phx.gbl...

|I had this problem (or one very similar) back in December; my workaround
| (not fix) was to cut the data-binding code from the designer code into
| own method that is called in the ctor outside of InitializeCompo nent().
| The downside is that I can't amend my bindings in the IDE, but
| once I have set them up I'm doing much of this anyway... and when I do
| to change them I can do it in source-code easily enough. Plus it gives
| more flexibility to use converters etc.

I suppose the only real downside to this is not being able to layout the
columns in a grid by using the designer provided columns. Presumably this
works with database driven datasources ? If so, then it really ought to
with objects as well; if not, then it is obviously a pretty major bug
really should be fixed.


Joanna Carter [TeamB]
Consultant Software Engineer

Jan 11 '06 #11
"Marc Gravell" <mg******@rm.co m> a écrit dans le message de news:
ep************* ***@tk2msftngp1 3.phx.gbl...

| Now... back to reading your OPF stuff... <g>

Please bear in mind that it is a bit old now and I really must update it to
C# sometime :-)


Joanna Carter [TeamB]
Consultant Software Engineer
Jan 12 '06 #12

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

Similar topics

by: Brian Fulford | last post by:
I am trying to deploy a web app with a deployment project since I am including Crystal Reports for .Net. I attached all the merge modules, etc but I am getting a build error when I try to build the setup project. Could not find file 'C;\Web\ccsm\ccsm_search.aspx' 'Interface not registered' Thie file is included in the project, so I am not sure what is going on!!
by: stash | last post by:
Help - Please! I am trying to run the V8 db2setup script *again* (maybe for the third or fourth time) and it will not re-create the sqllib directory. It always stops with this error: ERROR:Could not switch current DB2INSTANCE to "db2inst1". The return code is "-2029059916". Then it follows with : ERROR:DBI1122E Instance db2inst1 cannot be updated. In between attempts we have uninstalled all DB2 products (using SMIT) - we have killed...
by: Daniel Wilson | last post by:
I have a small Windows Form app in Visual C++ .NET 2003. I opened it up today and got the following message on the tab for my form. An error occured while loading the document. Fix the error, and then try laoding the document again. The error message follos: The designer could not be shown for this file because none of the classes within it can be designed. I don't have any custom code in InitializeComponent. I have commented out...
by: Johann Blake | last post by:
I installed "Visual Studio.NET 2003 Special Upgrade for Version 2002 customers". At the time of this posting, this is the latest version available. When I go to create a Smart Device application using C#, the IDE shows the designer window with the error message: "The designer could not be shown for this file because none of the classes within it can be designed."
by: eminemence | last post by:
Hi, I have been trying to get STLPort work for Symbian. I am using CodeWarrior compiler and it spews this errors namely ************************************************************************* Error : type specifier omitted for parameter string.h line 30 ************************************************************************ The following is the line where I get this error: Line 30 : # if (_STLP_OUTERMOST_HEADER_ID == 0x269) Line 31...
by: amindi | last post by:
Hi, I wrote a VB6 program to read some data records from a Ms Access database and to write them into a SQL server database.(I use Ms Access 2000 and SQL server 2000).After reading each record in Access database, I update a text type datafield of that record in Access database to 'Y' (to mark the perticular record as a copied record)(The program does the updation). I tested the program several times by using a seperate copy of the same database...
by: Jon Paal | last post by:
error : "Could not find stored procedure 'dbo.aspnet_CheckSchemaVersion'." using VWD 2005 with sqlexpress 2005 I am trying to create membership roles and users......
by: Nitinkcv | last post by:
Hi, While trying to run my app im getting the error Could not find a part of the path "c:\inetpub\wwwroot\Do not Delete\dbglobal.config". I checked and found that there is no Important_Do not Delete folder inside the wwwroot. The error occurs when i try to use the following code: //inside my test.aspx
by: ipramod | last post by:
Hi, I have a codebase which contains project for all the DLL's and another project for all UI presentations. When I try to open an aspx page on Visual Studio editor, I get following error on the very first line of the aspx page: ASPX Code: ++++++++++++++++++++++++++++++++++++++++++++++
by: Sejoro | last post by:
Hello, I am trying to write a program that opens a file; reads through it; outputs the text; then outputs the number of lines, words, and characters. Problem is, every time I try to compile, no matter what modifications I make, I get an error, "line 42: Error: Could not find a match for std::basic_istream<char, std::char_traits<char>>::get(int)." I have tried everything I can think of. Help? #include <iostream> #include <fstream>
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 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 a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

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.