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Basically I have<br />
<br />
if (m_myTree.SelectedItems[0]<wbr />.Tag != null)<br />
{<br />
.... some code<br />
}<br />
<br />
It seems to fall over once it reaches the first statement in my code because <br />
<br />
m_myTree.SelectedItems[0].<wbr />Tag != null but its not correct either. So I get a mis-match. My main question is why do you use <br />
<br />
m_myTree.SelectedItems[0]<br />
<br />
If its a tree structure, I am assuming because 0 is the first level for each node in the tree for the selected item when @ 0 is pointing to the leaf etc,
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Basically I have

if (m_myTree.SelectedItems[0].Tag != null)
{
.... some code
}

It seems to fall over once it reaches the first statement in my code because 

m_myTree.SelectedItems[0].Tag != null but its not correct either. So I get a mis-match. My main question is why do you use 

m_myTree.SelectedItems[0]

If its a tree structure, I am assuming because 0 is the first level for each node in the tree for the selected item when @ 0 is pointing to the leaf etc,

TreeListView Selected Item Woes

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).