Readonly Controls Collection warning

[mjenkinson05]

Since upgrading to 4.4.0 I've received 4 warnings stating "Readonly Controls Collection"

Ive posted one of the 4 sections below.. theyre all roughlt the same other than names and sizes:

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'grpDescription
'
Me.grpDescription.Controls.Add(Me.grpDescription.Panel)
Me.grpDescription.Location = New System.Drawing.Point(22, 497)
Me.grpDescription.Name = "grpDescription"
Me.grpDescription.Size = New System.Drawing.Size(951, 195)
Me.grpDescription.TabIndex = 77
Me.grpDescription.Values.Heading = "Description of Work"


The line its complaining about is the 'Controls.Add' line.

Ive tried registering the design.dll with gacutil and that hasnt solved the problem.

Any help would be appreciated.

[bkone]

The same applies to me.

After upgrading to version 4.4.0 from 4.3.2 I cannot open any KryptonControl in Designer anymore. The warnings tab shows the cited message "Readonly Controls Collection warning".

Any help is very much appreciated.

Edit: Just to clarify: I am no longer able to work on my "project" because I neither can edit any Krypton controls properties nor add new Krypton controls to my form...

[bkone]

Hello again,

almost a week has passed since my last post and there has been no reaction at all.

Is this forum read by any staff of Component Factory? Or is this just a case of "users help users"?

[Pau]

I had the same issue.

I just deleted that line, and the designer and everything worked again.

[bkone]

Hi,

sorry, which line? This one:

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Me.grpDescription.Controls.Add(Me.grpDescription.Panel)

In my case, I have several Controls in several Groupboxes, where for each Groupbox the designer added a line like

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this.cvsAuthenticationGroupbox.Controls.Add(this.cvsAuthenticationGroupbox.Panel);

Removing those line results in losing the controls being contained in the groupbox...

[Pau]

Yes, I deleted that line (thoght it was a HeaderPanel control...).

In case of doublt, you can always delete the controls, and drop them again into your form... I'm pretty sure it will work...

[bkone]

Hi again,

I found the problem: in version 4.3.2 the panel of the groupbox was added directly by the designer using

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this.cvsAuthenticationGroupbox.Controls.Add(this.cvsAuthenticationGroupbox.Panel);

It seems that this is no longer possible in version 4.4.

The solution seems simple: You have to remove the line shown above and add the controls to the Panel by

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this.cvsAuthenticationGroupbox.Panel.Controls.Add(this.kryptonLabel1);

[mjenkinson05]

I dont understand what I need to do to get this working??

[bkone]

Open the .designer.cs file of your form.

Look for any occurence of

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...Controls.Add(....Panel);

Replace by

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....Panel.Controls.Add(...);

In my application the following worked:
BEFORE:

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            //
            // cvsClientGroupbox
            //
            this.cvsClientGroupbox.Controls.Add(this.cvsClientGroupbox.Panel);
            this.cvsClientGroupbox.Location = new System.Drawing.Point(6, 118);
            this.cvsClientGroupbox.Name = "cvsClientGroupbox";
            this.cvsClientGroupbox.Size = new System.Drawing.Size(595, 82);
            this.cvsClientGroupbox.TabIndex = 26;
            this.cvsClientGroupbox.Values.Heading = "Misc";


AFTER:

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            //
            // cvsClientGroupbox
            //
            this.cvsClientGroupbox.Location = new System.Drawing.Point(6, 118);
            this.cvsClientGroupbox.Name = "cvsClientGroupbox";
            //
            // cvsClientGroupbox.Panel
            //
            this.cvsClientGroupbox.Panel.Controls.Add(this.cvsBinLabel);
            this.cvsClientGroupbox.Panel.Controls.Add(this.cvsBinBox);
            this.cvsClientGroupbox.Panel.Controls.Add(this.cvsWebLabel);
            this.cvsClientGroupbox.Panel.Controls.Add(this.cvsWebBox);
            this.cvsClientGroupbox.Size = new System.Drawing.Size(595, 84);
            this.cvsClientGroupbox.TabIndex = 26;
            this.cvsClientGroupbox.Values.Heading = "Misc";


Basicly you have to remove the lines that add the Panel to the Controls-Container and replace them with .Panel.Controls.Add(<your control>).

Hope you understand what I am trying to say.

[mjenkinson05]

Im pulling my hair out with this one. I Just cannot get it to work.

Your instructions above are helpful, but im using VB not C so im a little lost.

[Jase555]

Deleteing these lines may work for existing code.

However the work around does not allow the designer to work for adding\creating a layout in the layout designer in VS2010. If you manually add a KryptonWorkspace in code then the designer will render it properly. Dragging onto the designer produces an error about System.NotSupportedException: Readonly controls collection at..... KryptonReadOnlyControls.Add(

To be clear. It is the adding of the component that throws the exception amking very labour intensive to build a new GUI.

Any fixes. I have the full source so can fix it locally if someone will point me in the right direction.

cheers
Jason

[Roxan]

Thanx for sharing this informative post.