Get the Name of the Assembly Containing the Selected Project Item in Visual Studio

In Visual Studio extensibility, you may need to get various properties of a Visual Studio project. One of this is the assembly name.

Assuming you have a DTE or DTE2 type applicationObject, you can get the name of the assembly containing the currently selected item by using the following code:

SelectedItem selectedItem = applicationObject.SelectedItems.Item(1);
ProjectItem projectItem = selectedItem.ProjectItem;

string assemblyName = null;
for (int i = 1; i <=projectItem.ContainingProject.Properties.Count; i++)
{
    Property property = projectItem.ContainingProject.Properties.Item(i);
    if (property.Name == "AssemblyName")
        assemblyName = property.Value.ToString();
}