Question

I’m working on some feature for my IDE, clicking some treeviewitem, will change the current displayed tab. I’m trying to do that, but no luck. What am I doing wrong?
How can I set the desired tab to be focued?

Here’s the code:

        void tr_ViewOtherClass(object sender, MouseButtonEventArgs e)
        {
            string tagToView = ((TreeViewItem) sender).Tag.ToString();
            TabItem currentTab = ((TabItem) (tabControl.SelectedItem));
            if (tagToView != currentTab.Tag.ToString())
            {
                TabItem tabToView = null;
                for (int i = 0; i < tabControl.Items.Count; i++)
                {
                    tabToView = ((TabItem) (tabControl.Items[i]));
                    if (tabToView.Tag.ToString() == tagToView)
                        break;
                }
                classCodes[currentTab.Tag.ToString()] = ((TextEditor) currentTab.Content).Text;
                currentTab = tabToView;
            }
        }

Answer 1

When you assign a value to the currentTab variable, it does not modify tabControl.SelectedItem.

You must assign directly tabControl.SelectedItem if you want to change its value ; currentTab is equivalent to a pointer, and modifying its value only modifies the value pointed by the local variable.