C1 Community

How do I do this in VB in VS2005?  I try creating a User Control and then going into the designer.vb file and changing the inheritance statement to C1.Win.C1Schedule.C1Schedule and that seems to work fine - the C1Schedule component renders on the User Control.  But when I try to get any further, things fall apart.
 

In the first place, if I go into the new User Component code and create a constructor and try to add anything after InitializeComponnt, like Me.VisualStyle = etc., it  blows up when I try to load the form and throws a NullReferenceException, telling me to use the "New" keyword to create an instance.  I tried adding MyBase.New() before InitializeComponent - because I saw that somewhere - but it made no difference.

In the second place (although really in the first place temporally, as it occurs before the above), when I try to load the form that has the user control I get a ComponentOne dialog telling me I have to recompile with a licensed version of the product not to see this dialog.  I have a licensed version, and I only see this dialog when I try to use the User Control.

I do compile the component for release before debugging.  I have it listed on the toolbox and dropped it to the form from there.

 

What's the trick?  Does anybody have an example in VB of creating a User Control from C1Schedule?  There's a C# example of this somewhere in the forum - but it does something weird with a partial class instead of inheritance and I couldn't make much sense out of it.  I don't know C#.

 

 

 Ok, ComponentOne support has helped me resolve the licensing issue.  I needed to drop the C1Schedule component on the form first to create the licenses.licx file in the project, then delete the control (but the licenses.licx file stays), and then I don't get the license splash screen when I place a User Control that contains the C1Schedule on the form.

As far as not being able to initialize properties in the constructor... I can change those properties in the form code once I have the control on the form... maybe I'm confused about how to modify a User Control at design time.  Again, an example in VB of a C1Schedule-based User Control with some code to extend some aspect of its functionality would be great.
 

Look at attached project, hope that helps.

> As far as not being able to initialize properties in the constructor... I can change
> those properties in the form code once I have the control on the form... maybe I'm
> confused about how to modify a User Control at design time. Again, an example in VB of
> a C1Schedule-based User Control with some code to extend some aspect of its
> functionality would be great.
>

 I appreciate your help, but it doesn't work.  When I load your sample, it does something similar to what mine does (or is now doing since I closed and reopened VS2005).  Instead of rendering the C1Schedule in design view, it throws up a bunch of scary errors like:

Warning    1    Could not find type 'WindowsApplication22.UserControl1'.  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 built.        0    0 

Warning    2    The variable 'UserControl11' is either undeclared or was never assigned. E:\C1CalendarUserControlExample\CustomControlTest\Form1.Designer.vb    67    0  
 


The first error doesn't show where the error is being generated.  You placed the User Control in the same project so I don't see why it wouldn't be able to find it.  I tried building the project using both Debug and Release modes.
 

Here's the offending line of code in Form1.designer.vb:

Me.Controls.Add(Me.UserControl11)

The control was declared and assigned several lines above that with:

Me.UserControl11 = New WindowsApplication22.UserControl1

So I don't know what the problem is.

 

It should find UserControl1 after rebuilding the project. Please, make sure that reference
to C1Schedule control is correct for your environment and re-build the project.
It works for me just perfect.

>I appreciate your help, but it doesn't work. When I load your sample, it does something
>similar to what mine does (or is now doing since I closed and reopened VS2005). Instead
>of rendering the C1Schedule in design view, it throws up a bunch of scary errors like:
>
> Warning 1 Could not find type 'WindowsApplication22.UserControl1'. 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 built.
> 0 0
>
>
> Warning 2 The variable 'UserControl11' is either undeclared or was never assigned.
> E:\C1CalendarUserControlExample\CustomControlTest\Form1.Designer.vb 67 0
>
>
>
> The first error doesn't show where the error is being generated. You placed the User
> Control in the same project so I don't see why it wouldn't be able to find it. I tried
> building the project using both Debug and Release modes.
>
>
> Here's the offending line of code in Form1.designer.vb:
>
> Me.Controls.Add(Me.UserControl11)
>
> The control was declared and assigned several lines above that with:
>
> Me.UserControl11 = New WindowsApplication22.UserControl1
>
> So I don't know what the problem is.
>