progressform.cs

一个通用的数据库访问层

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;

namespace YariSoft.Utils
{
	public class YProgress : System.Windows.Forms.Form
	{
		#region Local variables
		private bool _cancel = false;
		private System.Windows.Forms.Button cancelButton;
		private System.Windows.Forms.ProgressBar progressBar;
		private System.Windows.Forms.Label operationLabel;
		private System.ComponentModel.Container components = null;
		#endregion

		#region Properties
		public bool Cancel
		{
			set{
				if( value == true ){
					this.Close();
				}
			}

			get{ return this._cancel; }
		}

		public int Maximum
		{
			set{ this.progressBar.Maximum = value; }
			get{ return this.progressBar.Maximum; }
		}

		public string OperationCaption
		{
			set{ this.operationLabel.Text = value; this.operationLabel.Refresh(); }
		}

		public int Value
		{
			set{
				Application.DoEvents();
				this.progressBar.Value = value; 
				if( this.progressBar.Value >= this.progressBar.Maximum ){
					this.Close();
				}
			}
			get{ return this.progressBar.Value; }
		}

		#endregion

		#region Constructor/Destructor
		public YProgress()
		{
			InitializeComponent();
			this.Show();
			this.Refresh();
			YariSoft.Utils.YMessages.ChangeCursor ( Cursors.WaitCursor );
		}

		protected override void Dispose( bool disposing )
		{
			YariSoft.Utils.YMessages.ChangeCursor ( Cursors.Default );
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}
		#endregion

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.cancelButton = new System.Windows.Forms.Button();
			this.progressBar = new System.Windows.Forms.ProgressBar();
			this.operationLabel = new System.Windows.Forms.Label();
			this.SuspendLayout();
			// 
			// cancelButton
			// 
			this.cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
			this.cancelButton.Location = new System.Drawing.Point(200, 80);
			this.cancelButton.Name = "cancelButton";
			this.cancelButton.TabIndex = 0;
			this.cancelButton.Text = "Cancel";
			this.cancelButton.Click += new System.EventHandler(this.cancelButton_Click);
			// 
			// progressBar
			// 
			this.progressBar.Location = new System.Drawing.Point(16, 40);
			this.progressBar.Name = "progressBar";
			this.progressBar.Size = new System.Drawing.Size(440, 23);
			this.progressBar.TabIndex = 1;
			// 
			// operationLabel
			// 
			this.operationLabel.AutoSize = true;
			this.operationLabel.Location = new System.Drawing.Point(16, 12);
			this.operationLabel.Name = "operationLabel";
			this.operationLabel.Size = new System.Drawing.Size(0, 13);
			this.operationLabel.TabIndex = 2;
			// 
			// YProgress
			// 
			this.AcceptButton = this.cancelButton;
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.CancelButton = this.cancelButton;
			this.ClientSize = new System.Drawing.Size(472, 109);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.operationLabel,
																		  this.progressBar,
																		  this.cancelButton});
			this.KeyPreview = true;
			this.MaximizeBox = false;
			this.MinimizeBox = false;
			this.Name = "YProgress";
			this.ShowInTaskbar = false;
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "ProgressForm";
			this.TopMost = true;
			this.ResumeLayout(false);

		}
		#endregion

		#region Private functions
		private void cancelButton_Click(object sender, System.EventArgs e)
		{
			this._cancel = true;
			this.Close();
		}
		#endregion
	}
}