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3
Votes

SfTreeView calls the SelectedNodesChanged handler twice every time a node is selected

I have created a layout template with a responsive sidebar per the Blazor Sidebar With Responsive Example. Instead of all of the lorem ipsom stuff in <div class="sidebar-content"> I have @Body. The first time a node is clicked the 

SelectedNodesChanged callback is called once as expected. Every subsequent time I select a node it will call the 
SelectedNodesChanged twice - once for the node I just selected and a second time for the first selected node.

For example: If the first node I select is node #3
SelectedNodesChanged will be called with argument #3. If I then select #5
SelectedNodesChanged will get called for #5 and then #3. If I select #3 again it will only call 
SelectedNodesChanged once for #3. Each time 
SelectedNodesChanged is called the data bound Selected property on the underlying node object will only ever be true for the *first* selected node - 
however the correct node will become highlighted
.

Unfortunately, this component is completely unusable for me.