How to call C# form from a VB.NET form????

[cooldudeattitud]

Hi,

How can we call a c# form from vb.net form.

The c# form is called as csform and is in project csharps.

The VB.net form is called as vbform and is in project vbnets.

There is a button in vbform on clicking should lead to the c# form.

How can we do this. Ur help will be appreciated

[Pirate]

Compile your C# form as Class Library (output = yourproj.dll) . reference that dll in your VBproj , then something like this :

Dim  csharpfrm As New YourCsharpProj.Form1
csharpfrm.Show()

[cooldudeattitud]

Hi Pirate,

Thanks a lot for your reply
But two questions

(1) How do we create dll's in VS.NET for C#.

(2) And How do we use that dll and compile in VB.NET using VS.NET

links or tutorial will be appreciated.

I once again thank you for your reply.

[Pirate]

Originally posted by cooldudeattitud


(1) How do we create dll's in VS.NET for C#.

(2) And How do we use that dll and compile in VB.NET using VS.NET

1- Create new Windows proj whether C# or VB , do you work there , after you're done , right click your project name in the Solution Explorer and Properties . In the Common item under General Properties , change the Output type to Class Library . Note applies to your first post , so that you can reference the C# form in your VB form [ if you're going to write the whole class then the type of proj should be Class Library Project ]. Anyways , right click the solution project not the project itself . Select properties , then select Configuration Properties , then Release . After this , go to Build menu , then Build Solution , your dll should be there in the bin\release.

2-After you get your dll from the C# proj , then you have to reference it in your VB.NET Proj . Open your VB Proj , right click References in Solution Explorer , then Add Reference . Browse to the C# dll you have just compiled . then press OK .Almost done , use it something like this :

Dim myCsharpFrm As New YourCsharpprojname.Form1()
myCsharpFrm.Show()

YourCsharpprojname= your actual C# Project name .
Form1=the form in the C# proj .

Hope that helps .