I have created a form that shows a number of settings held in the exe.config file, that I would like the user to be able change. For example I have a text box named txtReadServer that I populate with the setting ReadServer in the following manner:
m_ConfigurationForm.txtReadServer.Text = My.Settings.ReadServer
From what I have read on this and other forums, I need to use ConfigurationManager in order to update these setting in the exe.config at runtime. My problem is that when I try anything like the following: Dim config As Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None) Visual Studio seems to not know what the Configuration object is. I have tried add an Imports System.Configuration at the top of my class, but the word Configuration is still highlighted in the dreaded red!
Any help - or suggestions on the best way to allow users to configure an app would be gratefully received.
Thanks,
Paul.
Add a reference in your project to System.Configuration.
Related
InitializeComponent();
This code line appeared in all my Xaml pages' constructors in code behind.
It throws the following error:
InitializeComponent does not exist.
Now I cannot debug any page in my project although I have commented out this line.
How can I fix this?
Any help would be greatly appreciated.
Note: I'm using Xamarin Forms Portable project.
Update: When I comment out this line and run the pages, only an empty screen shows up in both IOS and Android although my pages were working correctly without error before.
Update 2: now the InitializeComponent lines are disappeared but the pages that I debug are still totally blank.
I have asked a question about this new problem on here.
I had also the same problem in Xamarin Forms Application.I fixed it by changing the Build Action to:
Embedded resource
for .xaml and .cs file both using property window.
Hope it may help you.
Change something in the page, then save it. Scarily this resolves the issue sometime.
If that doesn't work.
Update your nugget packages so Xam Forms is the latest.
"Clean" your project
Go to your project dir and delete the bin and obj from your projects via File Explorer.
Rebuild it.
Good luck.
Be sure that your Xaml page has property Custom Tool set to MSBuild:UpdateDesignTimeXaml
'Its not an issue. You can try to build your solution. Hopefully it will bulid perfectly. Most of the time I also get red under line on InitializeComponent(); like you same. Its a problem of Xamarin studio and Visual studio'
Is it the first XAML page you create in the project? or you created other pages and they don't contain this problem?
you can Check the comments here: http://forums.xamarin.com/discussion/17638/initializecomponent-does-not-exist/p4
Have you renamed your page? All XAML pages have a viewable partial class (the one you enter your logic code in to) and a hidden, system generated partial class.
If you renamed the class but did not use the VS rename macro, your system generated partial class no longer matches your editable partial class.
Try running 'Clean Solution' and 'Rebuild Solution' (both in the 'Build' menu) to see if VS can automatically detect and fix this for you.
If that doesn't work, make sure your pages are set as partial classes e.g. public partial class MyPage : Page
If you still have no luck, manually delete the 'obj' folder in your project's root folder, then rebuild again.
Simple trick:
Just edit your Xaml code..(Put space also enough..But need editing)
After edit the xaml page save project..
Now check error disappears..
In my case this was a result of intermediate build paths being too long for Windows. Moving my solution to just off the drive root C:\dev{solution} in my case solved the problem.
I had this problem because the namespace of my .xaml file did not match the namespace of the .xaml.cs file. Fixing the namespaces so they matched corrected the problem.
I'm having trouble adding user controls to my project.
I right-click on my project and select Add -> User Control...
I then click Add
I drag a label onto the new user control, and save it.
I build the project, go back to my main form, and drag the control from the Components tab in the Toolbox onto the form.
I see the control, but I get an error:
Type 'crm.UserControl1' is not defined.
If I do this with a blank project, it works. I'm not familiar enough with vb.net or visual studio to understand what's going wrong.
If I double-click the error, it brings me to this line in the generated designer code for the form:
Me.UserControl11 = New crm.UserControl1()
and says that crm.UserControl1 is not defined. If I change it to Global.crm.UserControl1, it works, but obviously this code is overwritten when I fiddle with the designer.
Any ideas, or pointers to get me started in the right direction? Thanks in advance.
My main form had the same name as the root namespace. This is what caused the problem.
Kind of late to the party with this one but I had this problem and I think that the issue was due to the controls being built in a more recent framework than the one that I was using.
Basically my custom controls were built in 4.7, but my project was being built in 4.5.1
Once I changed the current build so that they both were the same it compiled happily.
As far as I know, it is kind of accessibility issue because you are able to solve the issue when you try to access the object globally. I think when you drag and drop the control, the definition codes of the control in the designer class automatically generated with private accessibility but I don't know why. You could try to change it as public. I hope this will work.
Way late to this party. I fixed it by referencing it in the aspx page with the following as it was missing.
<%# Register Src="~/Controls/mycontrolname.ascx" TagPrefix="ucControl" TagName="MyControl" %>
Good Morning,
I'm working in a VB project (usually I work mostly on C#) and there is an issue at the compilation that I don't understand:
In my VB project I have a Windows Form (with its own Designer.vb and .resx) and a Resources file (with its Designer.vb), both have the same name, and it seems that it produce the following compilation error:
Error 13 The item "obj\Debug[projectName].[fileName].resources" was specified more than once in the "Resources" parameter. Duplicate items are not supported by the "Resources" parameter.
I can't change the name of one of them as it's an internal design pattern (and it works in C# projects).
Doesn't VB accept such pattern ? If yes, are there any workaround possible ?
Or do I have something wrong in one of my project files ?
Regards
Edit: As my problem may not be very clear, here is the pattern I have to respect in this project :
This doesn't compile. In VB only as I'm using this pattern in C# projects without any issues.
You probably have a duplicated entry inside the form.designer. I ran across this problem once
Goto to your Solution Explorer, Select your project and click on the show all files icon at the top of the Solution Explorer. You should then be able to expand out your form.vb to see all the sub files. Look for a frmMain.Designer.vb and check it for a duplicate resource entry. If that doesn't work try cleaning your Solution
Extracted from here, check the link it may help:
VB.net designer error
Edit: I would delete the form. Save the code behind and create it with another name pasting the code.
Finally I found where the problem was:
It was an issue with namespaces, as VB generated in VisualStudio doesn't provide any namespace by default in WinForms, ones I gave a namespace to the form and the designer of the form, and gave a different namespace to the second resx (via it's properties/Custom Tool Namespace) it compile.
I have written up troubleshooting documents for my project and would like them included in my program. I remember in VB6 there was a very easy way to do this with a control, where it already has the help document tree set up on the left and you just set it to point to certain files.
Does something like this exist for .NET? I am aware of the HelpProvider control but as far as I know this just puts in tooltips and opens documents on a button press?
Thanks for any help. :)
To the best of my knowledge no such interface exists in Visual Studio, at least in the express editions that I have installed here. As your investigations showed you, the only way to provide help is to add a HelpProvider to a form and set its HelpNamespace property to your HTM/CHM file. Then on each control you can manually set the HelpKeyword, HelpString and/or HelpNavigator properties. Setting the last option controls how the values of HelpKeyword or HelpString are passed to the external help file.
onload i do a msgbox (my.settings.mytext)
it returns a value, but i cannot find where in the project i have set this value!! it was definitely set by me, but i cannot find it anywhere. please help
it is attached to textbox1.text, but that has no value either
Please see My.Settings:
The My.Settings object provides access
to the application's settings and
allows you to dynamically store and
retrieve property settings and other
information for your application. For
more information, see Managing
Application Settings.
and also How to: Add or Remove Application Settings:
Application settings allow you to
store and retrieve property settings
and other information for your
application dynamically. There are two
types of application settings, based
on scope: user-scoped and
application-scoped settings.
At design time, you can add
application settings either using the
Settings pane of the Project Designer,
or using the Properties window for a
form or control, which allows you to
bind a setting directly to a property.
This last line that I have emphasized is most likely where you want to look.
Maybe you could goto the Edit menu and do a Quick Find on the Settings name, if it finds it you'll probably find out where you've set the value.
Also, have you checked the Program.vb file? I always forget about that file.
Hope this has helped.