Type Explorer improvements

Use FixedTreeView instead of normal TreeView. It solves the flickering
issues.
Capture the Escape key to close the panel as intended.

Author: Neverbirth

External/Plugins/ASCompletion/CustomControls/ModelsExplorer.Designer.cs

@@ -509,6 +509,17 @@ internal bool OnShortcut(Keys keys)
             return false;
         }
 
+        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
+        {
+            if (keyData == Keys.Escape)
+            {
+                OnShortcut(keyData);
+                return true;
+            }
+
+            return base.ProcessCmdKey(ref msg, keyData);
+        }
+
         private void ModelsExplorer_KeyDown(object sender, KeyEventArgs e)
         {
             if (e.KeyCode == Keys.Enter)
@@ -522,17 +533,17 @@ private void ModelsExplorer_KeyDown(object sender, KeyEventArgs e)
             else OnShortcut(e.KeyData);
         }
 
-        private void searchButton_Click(object sender, EventArgs e)
+        private void SearchButton_Click(object sender, EventArgs e)
         {
             FindNextMatch(filterTextBox.Text);
         }
 
-        private void refreshButton_Click(object sender, EventArgs e)
+        private void RefreshButton_Click(object sender, EventArgs e)
         {
             UpdateTree();
         }
 
-        private void rebuildButton_Click(object sender, EventArgs e)
+        private void RebuildButton_Click(object sender, EventArgs e)
         {
             outlineTreeView.Nodes.Clear();
             ASContext.RebuildClasspath();
@@ -541,7 +552,7 @@ private void rebuildButton_Click(object sender, EventArgs e)
 
         #region Context menu
 
-        private void exploreToolStripMenuItem_Click(object sender, EventArgs e)
+        private void ExploreToolStripMenuItem_Click(object sender, EventArgs e)
         {
             TreeNode node = outlineTreeView.SelectedNode;
             if (node == null) return;
@@ -551,14 +562,14 @@ private void exploreToolStripMenuItem_Click(object sender, EventArgs e)
                 PluginBase.MainForm.CallCommand("RunProcess", String.Format("explorer.exe;/e,\"{0}\"", path));
         }
 
-        private void editToolStripMenuItem_Click(object sender, EventArgs e)
+        private void EditToolStripMenuItem_Click(object sender, EventArgs e)
         {
             TreeNode node = outlineTreeView.SelectedNode;
             if (node == null) return;
             outlineTreeView_Click(null, null);
         }
 
-        private void convertToolStripMenuItem_Click(object sender, EventArgs e)
+        private void ConvertToolStripMenuItem_Click(object sender, EventArgs e)
         {
             TreeNode node = outlineTreeView.SelectedNode;
             if (node == null || current == null || current.Classpath == null) return;