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Scroll disappears when adding a new page in Runtime

The Scroll disappears when a new page is added to the Runtime or when the visibility of a page is changed.
Property: multiline = false;

Normal:
https://ibb.co/iQ7Lhn

Change visible tab:
https://ibb.co/e76Ka7


3 Replies
MK Mallika Kannan Syncfusion Team March 8, 2018 12:29 PM UTC

Hi Slava , 
  
Thank you for contacting Syncfusion support.  
  
We checked your query “Scroll disappears when a new page is added to the Runtime or when the visibility of a page is changed.“,  But we are unable to reproduce the reported issue at our end. We have also prepared the sample for the same. In our sample, we have changed the TabPageAdv Visibility and add/remove new TabPageAdv at dynamically. The following code demonstrates the same.  
  
Code Example: [C#] 
 
//Set TabControlAdv single line mode 
tabControlAdv1.Multiline = false; 
 
//Hide the TabPageAdv 
this.tabControlAdv1.TabPages[this.tabControlAdv1.TabPages.Count - 1].TabVisible = false; 
 
//Show the TabPageAdv 
this.tabControlAdv1.TabPages[this.tabControlAdv1.TabPages.Count - 1].TabVisible = true; 
 
//Add new TabPageAdv 
TabPageAdv page = new TabPageAdv("New"); 
this.tabControlAdv1.TabPages.Add(page); 
 
//Remove TabPageAdv 
this.tabControlAdv1.TabPages.RemoveAt(this.tabControlAdv1.TabPages.Count - 1); 
 
Please find the sample and video from the below link.  
  
  
  
Please check this  video, sample and confirm the steps we have followed. Please share your working Essential Studio version along with the details of any Customization you have made on TabControlAdv, share sample/code to reproduce the issue and proceed further.  
  
Regards,  
Mallika 


SL Slava March 8, 2018 04:43 PM UTC

Creation of tabs takes place on attributes from XML file.
Before creating, the command is:

menuPages.Controls.Clear ();

If I remove it, the scroll remains normal. If you leave something, it turns out so in the first message wrote

UPDATE:
Solved a problem.
Replaced:
menuPages.Controls.Clear ();
On:
menuPages.TabPages.Clear ();


And I know that I already asked. But I would like to know if there will be a possibility of changing the size of the buttons in TabPrimitiveHost?

Thank!

MK Mallika Kannan Syncfusion Team March 9, 2018 10:49 AM UTC

Hi Slava 
 
Thanks for your update. 
 
Query: I would like to know if there will be a possibility of changing the size of the buttons in TabPrimitiveHost? 
 
We have maintain the TabPrimitiveHost Buttons size internally. So, there is no direct property to set the Buttons size in TabPrimitiveHost. As per your request, We have prepared the sample to change the size of the buttons in TabPrimitiveHost using the following code example. 
 
Code Example: [C#] 
 
//TabControlAdv Item size 
this.tabControlAdv1.ItemSize = new Size(this.tabControlAdv1.ItemSize.Width, 50); 
//Set the TabPrimitive Buttons size 
foreach (TabPrimitive item in this.tabControlAdv1.TabPrimitivesHost.TabPrimitives) 
{ 
var obj = item; 
FieldInfo fi = obj.GetType(). 
GetField("m_szSize", BindingFlags.NonPublic | BindingFlags.Instance); 
//Set the Buttons size 
fi.SetValue(obj, new Size(50, 50)); 
} 
 
Screenshot 
 
 
 
 
Please try this above solution and let us know if it is helpful. 
 
Regards, 
Mallika 
 


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