Merge pull request #190 from toolgood/develop

Accelerate the update speed
Taiizor · Nov 29, 2024 · 2150c46 · 2150c46
2 parents a834456 + e7a8519
commit 2150c46
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/src/ReaLTaiizor/Controls/ListBox/MaterialListBox.cs b/src/ReaLTaiizor/Controls/ListBox/MaterialListBox.cs
@@ -537,10 +537,12 @@ public void AddItem(string newItem)
         public void AddItems(MaterialListBoxItem[] newItems)
         {
             _updating = true;
+            _scrollBar.BeginUpdate();
             foreach (MaterialListBoxItem str in newItems)
             {
                 AddItem(str);
             }
+            _scrollBar.EndUpdate();
             _updating = false;
 
             InvalidateScroll(this, null);
@@ -550,10 +552,12 @@ public void AddItems(MaterialListBoxItem[] newItems)
         public void AddItems(string[] newItems)
         {
             _updating = true;
+            _scrollBar.BeginUpdate();
             foreach (string str in newItems)
             {
                 AddItem(str);
             }
+            _scrollBar.EndUpdate();
             _updating = false;
 
             InvalidateScroll(this, null);
@@ -592,6 +596,7 @@ public int IndexOf(MaterialListBoxItem value)
         public void RemoveItems(MaterialListBoxItem[] itemsToRemove)
         {
             _updating = true;
+            _scrollBar.BeginUpdate();
             foreach (MaterialListBoxItem item in itemsToRemove)
             {
                 if (Items.IndexOf(item) <= _selectedIndex)
@@ -601,6 +606,7 @@ public void RemoveItems(MaterialListBoxItem[] itemsToRemove)
                 }
                 Items.Remove(item);
             }
+            _scrollBar.EndUpdate();
             _updating = false;
 
             InvalidateScroll(this, null);
@@ -609,7 +615,7 @@ public void RemoveItems(MaterialListBoxItem[] itemsToRemove)
 
         private void update_selection()
         {
-            if (_selectedIndex >= 0)
+            if (_selectedIndex >= 0 && _selectedIndex < Items.Count)
             {
                 _selectedItem = Items[_selectedIndex];
                 SelectedValue = Items[_selectedIndex];
@@ -626,10 +632,12 @@ private void update_selection()
         public void Clear()
         {
             _updating = true;
+            _scrollBar.BeginUpdate();
             for (int i = Items.Count - 1; i >= 0; i += -1)
             {
                 Items.RemoveAt(i);
             }
+            _scrollBar.EndUpdate();
             _updating = false;
             _selectedIndex = -1;
             update_selection();
@@ -641,11 +649,13 @@ public void Clear()
         public void BeginUpdate()
         {
             _updating = true;
+            _scrollBar.BeginUpdate();
         }
 
         public void EndUpdate()
         {
             _updating = false;
+            _scrollBar.EndUpdate();
         }
 
         #endregion Methods