If I add a new Form to my C# Project it always throws the error
CS1955 "Non-invocable member 'name' cannot be used like a method.".
Even If i create a new Form and add it like
Application.Run(Form1());
in the Program.cs file in VS15 Enterprise
It still throws this error, and I have no idea why.
Related
I get the following error at runtime from a C# WPF application:
A first chance exception of type
'System.Windows.Markup.XamlParseException' occurred in
PresentationFramework.dll
Additional information: 'Set property
'System.Windows.Controls.ContentControl.Content' threw an exception.'
Line number '6' and line position '6'.
How can I find which file this is associated with? The Visual Studio solution contains two XAML files, app.xaml and MainWindow.xaml.
I am using VS 2010 on Windows 7. The application targets .NET 4.0.
UPDATE:
Following up on Kasper's helpful suggestion, I displayed the exception in detail, and this is what it showed:
Based on the information in there, I was able to gather that a certain DLL was missing. Supplying the DLL fixed this problem, but I still have other XAML parse errors coming up.
In the code-behind, the XAML code is parsed in the method InitializeComponent which is automatically generated. This method is called in the Window object's constructor. So to have more details about the exception, put the call to InitializeComponent in a try/catch block. This way, you have access to the useless XamlParseException, but also to its InnerExceptions and to the StackTrace.
UPDATE!
You can call the inner exception using a MessageDialog.
public partial class Window1 : System.Windows.Window
{
public Window1()
{
try
{
InitializeComponent();
}
catch ( Exception ex )
{
// Log error (including InnerExceptions!)
// Handle exception
MessageDialog dialog = new MessageDialog(ex.InnerException);
dialog.ShowAsync();
}
}
}
Hope that helps :)
There is also another trick to this:
Open the "Exceptions" window (Debug/Exceptions) in Visual Studio.
Click "add"
Add "System.Windows.Markup.XamlParseException"
Check the box to break on throw for this exception.
Hit F5!
You'll find that the XamlParseException you catch is much more descriptive, and will give the correct position in the xaml file.
Let me know if this was easier :)
The main Problem is completely different, please skip to the Edit
I have an exception of an unknown type which doesn't even get thrown properly. Following Code provides the Context:
MMDataAccess.InitDemoDB();
MMDataAccess.InitInternalDB();
MMDataAccess.InitMaintDB();
try
{
SQLiteToDBLib sqltdbl = new SQLiteToDBLib();
sqltdbl.WriteToSQLite();
}
catch(Exception ex)
{
string message = ex.Message;
}
These are the very first lines of my first Activity in my app. The first 3 lines belong to my very own implementation of an in-memory database and are behaving nicely. The problem rises with the next two lines inside the try-block. The declaration and initalistation of the sqltdbl variable never happens. The constructor of SQLiteToDBLib looks like this:
public SQLiteToDBLib()
{
msc = new MSConnection();
}
The MSConnection class doesn't even have a constructor (except for the default one of course).
As you can see i've tried to catch any exceptions, but without success. everything i can figure out is, that a exception is thrown because of the debugger going into the catch section while ignoring everything that has to do with "ex". Without breakpoints everything seems fine. Just without the call to WriteToSQLite which should create a .sqlite file on the external Memory.
What can I do to resolve this error? Is there anything i can catch except the default Exception?
Edit:
After some testing with commented code something interresting happened. I could step into commented code. Well not exactly the commented code, but the code that was there before my changes. Visual Studio somehow shows me the things, that are changed in the file, but is compiling the old code. Up to now i tried to rebuild, clean and build the project in various combinations, unload and reload the project, Restart Visual Studio and restart Windows. Nothing has changed so far. I Will now proceed to create a new .cs File With the exact same Code. I'm working with VS 2013 Community
add static constructor to your SQLiteToDBLib class and perform all static objects initialization in it:
static SQLiteToDBLib()
{
// initialize static members here
}
If this doesn't give you a clue, try enabling CLRE exceptions-break in visual-studio:
DEBUG
Exceptions
Check the 'Common Language Runtime Exceptions' option (under the 'Thrown' column)
Press OK
Restart your app and try again
When I try to build my WPF project I get the folowing error:Samotorcan.Client.WPF.Windows8\Views\MainWindow.xaml(1,17): error MC3074: The tag 'Window' does not exist in XML namespace 'clr-namespace:Samotorcan.Client.WPF.Windows8.Controls'. Line 1 Position 17.The problem only occurs when I try to use linq. If I have a line like this new List<object>().ToArray<object>(); somewhere in the MainWindow.xaml.csfile I get the above error and if I change it to new List<object>().ToArray(); the error disappears and the project builds successfully.I also checked the build log and it contains the same error at task MarkupCompilePass2.I am using .NET Framework 4.5 and Visual Studio 2012.EDITAfter playing with it a bit I managed to find out that it's not specificly related to linq an random changes like removing an unused file from a project or just removing parts of code like a simple string creating string s = new String(); fixes the error.At one point a simple change in a constructor from this
public LoggedEventArgs(string message)
{
Message = message;
}
to this
public LoggedEventArgs(string message)
{
// Message = message;
}
fixed the error.
Managed to find a workaround for the above error by moving all my controls from the project into a separate project just for controls.
Now there are no random errors on build because as it looks like it can always find the window and other controls that are now in a separate assembly.
I am currently saving my .NET FX 4.0.1 StateMachine activity like this:
var sb = new StringBuilder();
var xamlWriter = ActivityXamlServices.CreateBuilderWriter(
new XamlXmlWriter(new StringWriter(sb),
new XamlSchemaContext()));
XamlServices.Save(xamlWriter, activityBuilder);
return sb.ToString();
This works fine and the generated XAML looks good. Unfortunately, it is invalid. I can read it back in using ActivityXamlServices.Load but when I execute it, it says that it doesn't know the properties defined in the workflow. Opening it in the Visual Studio designer yields the same errors:
Compiler error(s) encountered processing expression "ActiveCall". "ActiveCall" is not declared. It may be inaccessible due to its protection level.
Through comparing the original XAML with the XAML produced by my code, I found out how to fix this problem. I have to have this tag before the StateMachine tag:
<mva:VisualBasic.Settings>
Assembly references and imported namespaces for internal implementation
</mva:VisualBasic.Settings>
By the way:
The text inside the tag must be exactly like this, otherwise there will be an error when opening the WF in VS:
Failed to create a 'Settings' from the text 'FooBar'
Question:
What do I have to change in my code to have this tag in the generated XAML?
I think I found the answer.
I have to use the following code before calling Save:
VisualBasic.SetSettings(activityBuilder, new VisualBasicSettings());
If the activityBuilder has been created from a DynamicActivity it is even better to use the following code:
VisualBasic.SetSettings(activityBuilder,
VisualBasic.GetSettings(dynamicActivity));
If this is not used, namespaces that are only needed for extension methods are not written to the XAML and will lead to an error when loading and executing the XAML.
I summarized my findings on code project.
i have a list of struct
list who have a detail of stuff.
i need a another string info with this list.
so i wrote many function already who is used in my project
so i make a new list
who called stuffdetailedanother
who have a stuffdetailed stuff
and string info;
but when i send it to page using viewdata then he not worked when i use immediate window everything is fine.
are any another way i use ?
or how to pass him to a control
i pass it by a way
controller > View > Partial view
but it is not worked
i got the error
Server Error in '/' Application.
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: CS1519: Invalid token '(' in class, struct, or interface member declaration
Source Error:
Line 347: #line default
Line 348: #line hidden
Line 349: #__w.Write("\r\n </div>\r\n</div>\r\n");
Line 350: }
Line 351:
Source File: c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\2114142c\1d077c0d\App_Web_wishproductlist.ascx.89207646.1grmjmuq.0.cs Line: 349
The problem is that you have a syntax error on line 351 of your ASPX file. Take a closer look at it. If you don't understand why it's not compiling, post the code.
The problem is that the following line:
#__w.Write("\r\n </div>\r\n</div>\r\n");
(Line 349 in App_Web_wishproductlist.ascx.cs) contains a syntax error - probably the # symbol.
Without knowing more context its difficult to know what other advice to give, however hopefully this helps make the error a little clearer.