Vb.net windows forms-every time we open dialog box size is increment automatically

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VB

I have been trying to resolve this from a while, but couldn't find anything useful.

Issue-1
In Windows forms application the size of a dialog boxes keeps increasing every time we try to open it.
i tried the following ways to resolve it.
-Autosize/AutoSizeMode
-Refresh,
-Static values for location and Size,
-fixed values for maximum and minimum size,

Issue-2
I am able to fix the above issue-1 using SetBounds(x,y,Width,height) but now i am facing new issue where all the fields(Radiobuttons,textbox & Button) inside dialog box keeps on increment(also tried all the above resolution for issue-2)

**Code:**

Sub Frm_click()
**Frm.ShowDialog()**       //windows defined method
End Sub

Sub Frm_load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load)

*******
*****
****
End Sub

Thanks in Advance..

What I have tried:

Googled several items..

Autosize/AutoSizeMode
Refresh,

SetBounds(x,y,Width,height)