The WPF bug List (8)--rowdefinition maxheight under certain conditions

And the next city.

Bug Description: When RowDefinition's Height property is set to Auto, MaxHeight will not limit the height of this row.

Bug discovery process: Want to do something like the Error List in Visual Studio 2008. Usually automatically occupy the smallest space, you can at the appropriate time to bounce out, but do not play too high.

The sample window code is as follows:

Demo Window

 <window x:class= "Invalimaxheight.demowindow" 
 xmlns= http://schemas.microsoft.com/winfx/2006/xaml/ Presentation "
 xmlns:x=" Http://schemas.microsoft.com/winfx/2006/xaml "
 title=" maxheight of RowDefinition not E    FFCT "
 windowstartuplocation=" "Centerscreen" 
 height= "the" "Width=" 
 resizemode= "Noresize" 
  <grid> 
 <grid.rowdefinitions> 
 <rowdefinition/> 
 <rowdefinition height= "5"/> 
 <rowdefinition height= "Auto" maxheight= "/>"; 
 </grid.rowdefinitions> ;                       
 <dockpanel margin= "
 <textblock dockpanel.dock=" Top "textwrapping=" Wrap "
 text= "XXX"/> 
 <button content= "Show Large tab 
 click=" Onshowlargeta         bclick "
 horizontalalignment=" center 
 verticalalignment= "center" width= "/>"; 
  </dockpanel> 
      <gridsplitter grid.row= "1" horizontalalignment= "Stretch"/> 
 <tabcontrol grid.row= "2" margin= "12" & Gt                
 <tabitem header= "Empty tab"/> 
 <tabitem header= "Large tab" Name= "Largetab" 
 <listbox name= "ListBox"/> 
 </tabitem> 
 </tabcontrol> 
 </ Grid> 
 </window> 

Note: The default value for the height of rowdefinition is *.

To avoid unnecessary misunderstandings with unwanted code, the above code minimizes the size of the settings. The margin is set to be beautiful. The results of the operation are shown below.

Figure 1. Startup

Maybe we don't know how big the 50px is, it's probably the height of the part under the Gray line now. This means that the height should not change much after clicking the button. But that's the way it turned out.

Figure 2. Clicked

At this point, if you drag the top of the GridSplitter, then large tab that part will suddenly become smaller.