Added AutoWidth feature bounded by MaximumSize.

AutocompleteMenu/AutocompleteMenu.cs

@@ -264,6 +264,13 @@ public ImageList ImageList {
  [DefaultValue(500)]
  public int AppearInterval { get; set; }
 
+ /// <summary>
+ /// If true, the menu's width will be adjusted depending on visible items.
+ /// </summary>
+ [Description("If true, the menu's width will be adjusted depending on visible items. Bounded by MaximumSize")]
+ [DefaultValue(false)]
+ public bool AutoWidth { get; set; }
+
  [DefaultValue(null)]
  public string[] Items
  {
@@ -311,7 +318,10 @@ public IAutocompleteListView ListView
  /// </summary>
  public void Update()
  {
- Host.CalcSize();
+ if (AutoWidth)
+ UpdateSizeBasedOnVisible();
+ else
+ Host.CalcSize();
  }
 
  /// <summary>
@@ -682,7 +692,30 @@ private void BuildAutocompleteList(bool forced)
 
  Host.ListView.HighlightedItemIndex = -1;
 
- Host.CalcSize();
+ /* Calculate Width Depending on Largest Value */
+ if (AutoWidth)
+ {
+ UpdateSizeBasedOnVisible();
+ }
+ else
+ {
+ Host.CalcSize();
+ }
+ }
+
+ private void UpdateSizeBasedOnVisible()
+ {
+ int mxWidth = 0;
+ for (int i = 0; i < VisibleItems.Count; i++)
+ {
+ Debug.WriteLine(VisibleItems[i].ToString());
+ int width = TextRenderer.MeasureText(Host.CreateGraphics(), VisibleItems[i].ToString(), Font).Width;
+ if (width > mxWidth)
+ mxWidth = width;
+ }
+
+ mxWidth += LeftPadding;
+ Host.CalcSize(Math.Min(MaximumSize.Width, mxWidth));
  }
 
  internal void OnOpening(CancelEventArgs args)

AutocompleteMenu/AutocompleteMenuHost.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics;
 using System.Drawing;
 using System.Windows.Forms;
 
@@ -63,10 +64,19 @@ protected override void OnPaintBackground(PaintEventArgs e)
  e.Graphics.FillRectangle(brush, e.ClipRectangle);
  }
 
- internal void CalcSize()
+ internal void CalcSize(int? customWidth = null)
  {
- Host.Size = (ListView as Control).Size;
- Size = new System.Drawing.Size((ListView as Control).Size.Width + 4, (ListView as Control).Size.Height + 4);
+ if (customWidth == null)
+ {
+ Host.Size = (ListView as Control).Size;
+ Size = new Size((ListView as Control).Size.Width + 4, (ListView as Control).Size.Height + 4);
+ } 
+ else
+ {
+ Host.Size = new Size((int)customWidth, (ListView as Control).Size.Height);
+ Size = new Size((int)customWidth + 4, (ListView as Control).Size.Height + 4);
+ Debug.WriteLine("Setting width to " + customWidth);
+ }
  }
 
  public override RightToLeft RightToLeft