Programmatically add controls

Well I realized that my control was added but not visible (it seems it was behind the container)

so It works with:

radcollapsiblepanel1.panelcontainer.controls.add(mycontrol)

Thanks

Hello, Pierre-Jean,         

this.radCollapsiblePanel1.PanelContainer.Controls.Add(this.radButton1);

This is the appropriate way to add controls programmatically to RadCollapsblePanel.

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik

Thanks a lot for the explanation

Best regards

PJ

I add controls (Buttons) to the header with

but these buttons are stretched to the width of the header. I have to set AutoSize = false and to set the Size.

But the main-problem is the location of the buttons. When i add 3 Buttons the second is in the middle and the third is on the right.

The HeaderElement is HorizontalHeaderAlignment=left and StretchHorizontally=true.

When i change the StretchHorizontally to false the header Element is in the middle of the CollapsiblePanel.

Why the buttons are not left next to each other instead of distributed of the hole area?

Hello, Martin,

Please refer to the below code snippet demonstrating how to add 3 RadButtonElements next to each other as it is illustrated in the below screenshot: 

            RadButtonElement btn1 = new RadButtonElement();
            btn1.Text = "A";
            btn1.AutoSize = false;
            btn1.Size = btn1.MinSize = btn1.MaxSize = new System.Drawing.Size(30, 20);
            btn1.StretchHorizontally = false;

            RadButtonElement btn2= new RadButtonElement();
            btn2.Text = "B";
            btn2.Size = btn2.MinSize = btn2.MaxSize = new System.Drawing.Size(30, 20);
            btn2.StretchHorizontally = false;

            RadButtonElement btn3 = new RadButtonElement();
            btn3.Text = "C";
            btn3.Size = btn3.MinSize = btn3.MaxSize = new System.Drawing.Size(30, 20);
            btn3.StretchHorizontally = false;
         
            this.radCollapsiblePanel1.CollapsiblePanelElement.HeaderElement.Children.Insert(1, btn1);
            this.radCollapsiblePanel1.CollapsiblePanelElement.HeaderElement.Children.Insert(2, btn2);
            this.radCollapsiblePanel1.CollapsiblePanelElement.HeaderElement.Children.Insert(3, btn3);

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik

Good Morning,

i think to not stretch the elemtents (with "StretchHorizontally = false) is the missing information i searched for! :-)

I´m a web developer and don´t expect such configuration, i have to learn develop for desktop applications. ;-)

Best regards

Hello, Martin, 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik