DotNet 4.8.1 build of DotNetBar

PROMS/DotNetBar Source Code/AdvTree/TextBoxEx.cs

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+using System;
+using System.Drawing;
+using System.Windows.Forms;
+using System.ComponentModel;
+
+namespace DevComponents.AdvTree
+{
+	/// <summary>
+	/// Represents the text box for editing cell's text.
+	/// </summary>
+	[Designer("System.Windows.Forms.Design.ControlDesigner, System.Design, Version= 2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"),ToolboxItem(false)]
+	internal class TextBoxEx:TextBox, ICellEditControl
+	{
+		#region Private variables
+		private bool m_WordWrap=false;
+		#endregion
+
+		#region Events
+		public event EventHandler EditComplete;
+		public event EventHandler CancelEdit;
+		#endregion
+
+		#region Constructor
+		public TextBoxEx():base()
+		{
+			this.AutoSize=false;
+			this.BorderStyle=System.Windows.Forms.BorderStyle.None;
+		}
+		#endregion
+
+		#region Internal Implementation
+		protected override void OnKeyDown(KeyEventArgs e)
+	{	
+			base.OnKeyDown(e);
+
+			if(e.KeyCode==Keys.Enter && !m_WordWrap || e.KeyCode==Keys.Enter && e.Modifiers==Keys.Control)
+			{
+				if(EditComplete!=null)
+					EditComplete(this, new EventArgs());
+			}
+			else if(e.KeyCode==Keys.Escape)
+			{
+				if(CancelEdit!=null)
+					CancelEdit(this,new EventArgs());
+			}
+		}
+#if FRAMEWORK20
+        protected override void OnKeyPress(KeyPressEventArgs e)
+        {
+            if (!m_WordWrap && _PreventEnterBeep && e.KeyChar == (char)Keys.Enter)
+            {
+                e.Handled = true;
+            }
+            base.OnKeyPress(e);
+        }
+#endif
+
+        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
+        {
+            if (keyData == Keys.Tab)
+            {
+                if (EditComplete != null)
+                    EditComplete(this, new EventArgs());
+            }
+            return base.ProcessCmdKey(ref msg, keyData);
+        }
+
+		protected override void OnTextChanged(EventArgs e)
+		{
+			base.OnTextChanged (e);
+			ResizeControl();
+		}
+
+		private void ResizeControl()
+		{
+			Graphics g=this.CreateGraphics();
+			SizeF size=g.MeasureString(this.Text,this.Font);
+			int width=(int)Math.Ceiling(size.Width);
+			int height=(int)Math.Ceiling(size.Height);
+            if (this.Parent != null && this.Right + (width - this.Width) > (this.Parent.ClientRectangle.Right - SystemInformation.VerticalScrollBarWidth - 2))
+                return;
+            if (width > this.Width)
+                this.Width = width;
+
+			if(m_WordWrap)
+			{
+				if(this.Parent!=null && this.Bottom+(height-this.Height)>this.Parent.Bottom)
+					return;
+				if(height>this.Height)
+					this.Height=height;
+			}
+		}
+		#endregion
+
+		#region Public Properties
+
+		/// <summary>
+		/// Gets or sets whether the editing is in word-wrap mode.
+		/// </summary>
+		public bool EditWordWrap
+		{
+			get {return m_WordWrap;}
+			set
+			{
+				m_WordWrap=value;
+				if(m_WordWrap)
+				{
+					this.Multiline=true;
+					this.ScrollBars=ScrollBars.None;
+				}
+				else
+				{
+					this.Multiline=false;
+				}
+			}
+		}
+
+        private bool _PreventEnterBeep = false;
+        /// <summary>
+        /// Gets or sets whether control prevents Beep sound when Enter key is pressed.
+        /// </summary>
+        [DefaultValue(false), Category("Behavior"), Description("Gets or sets whether control prevents Beep sound when Enter key is pressed.")]
+        public bool PreventEnterBeep
+        {
+            get { return _PreventEnterBeep; }
+            set
+            {
+                _PreventEnterBeep = value;
+            }
+        }
+        
+		#endregion
+
+        #region ICellEditControl Members
+
+        public void BeginEdit()
+        {
+            
+        }
+
+        public void EndEdit()
+        {
+            
+        }
+
+        public object CurrentValue
+        {
+            get
+            {
+                return this.Text;
+            }
+            set
+            {
+                this.Text = value.ToString();
+            }
+        }
+        #endregion
+    }
+}