numberpicker.cs

应用于C#中的参照功能

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

namespace WATestPGB
{
	/// <summary>
	/// This is the main class for the NumberPicker control
	/// </summary>
	public class NumberPicker : System.Windows.Forms.UserControl
	{
        private System.Windows.Forms.TextBox textBoxNumber;
        private Button button1;
        private string Node_SQL;
        private string GidView_SQL;
        private string Cnn_SQL;


		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		/// <summary>
		/// The default constructor for the NumberPicker control
		/// </summary>
		public NumberPicker()
		{
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();
            Node_SQL = "";
            GidView_SQL = "";
            Cnn_SQL = "";
		}

		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Component 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.textBoxNumber = new System.Windows.Forms.TextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // textBoxNumber
            // 
            this.textBoxNumber.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.textBoxNumber.Location = new System.Drawing.Point(0, 0);
            this.textBoxNumber.Name = "textBoxNumber";
            this.textBoxNumber.Size = new System.Drawing.Size(119, 21);
            this.textBoxNumber.TabIndex = 1;
            this.textBoxNumber.DoubleClick += new System.EventHandler(this.button1_Click);
            // 
            // button1
            // 
            this.button1.BackColor = System.Drawing.SystemColors.ButtonFace;
            this.button1.Dock = System.Windows.Forms.DockStyle.Right;
            this.button1.FlatAppearance.BorderColor = System.Drawing.SystemColors.GradientActiveCaption;
            this.button1.ForeColor = System.Drawing.SystemColors.ButtonFace;
            this.button1.Image = global::WATestPGB.Properties.Resources._063;
            this.button1.Location = new System.Drawing.Point(120, 0);
            this.button1.Margin = new System.Windows.Forms.Padding(0, 3, 3, 3);
            this.button1.MaximumSize = new System.Drawing.Size(30, 21);
            this.button1.MinimumSize = new System.Drawing.Size(30, 21);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(30, 21);
            this.button1.TabIndex = 2;
            this.button1.Text = "...";
            this.button1.UseVisualStyleBackColor = false;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // NumberPicker
            // 
            this.Controls.Add(this.button1);
            this.Controls.Add(this.textBoxNumber);
            this.MaximumSize = new System.Drawing.Size(150, 21);
            this.MinimumSize = new System.Drawing.Size(150, 21);
            this.Name = "NumberPicker";
            this.Size = new System.Drawing.Size(150, 21);
            this.ResumeLayout(false);
            this.PerformLayout();

		}
		#endregion

		#region Properties

		/// <summary>
		/// Gets or sets the value of the control using a string
		/// </summary>
		public override string Text 
		{
			get 
			{
				return this.textBoxNumber.Text;
			}
			set 
			{
				this.textBoxNumber.Text = value;
			}
		}

		/// <summary>
		/// Gets of sets the value of the control using a double 
		/// </summary>
        public  string Value
        {
            get
            {
                return this.textBoxNumber.Text;
            }
            set
            {
                this.textBoxNumber.Text = value.ToString();
            }
        }

		/// <summary>
		/// Gets or Sets the fact that the control has been modified since it was last created or set
		/// </summary>
		public bool Modified 
		{
			get 
			{
				return this.textBoxNumber.Modified;
			}
			set 
			{
				this.textBoxNumber.Modified = value;
			}	
		}

		/// <summary>
		/// Gets or Sets the maximum amount of characters which can be entered into the control
		/// </summary>
		public int MaxLength 
		{
			get 
			{
				return this.textBoxNumber.MaxLength;
			}
			set 
			{
				this.textBoxNumber.MaxLength = value;
			}
		}

        [Description("设置默认值"), Browsable(true), Category("N8")]
        public string NodeValuesql
        {
            get
            {
                return Node_SQL;
            }
            set
            {
                this.Node_SQL = value;
            }
        }
        [Description("设置默认值"), Browsable(true), Category("N8")]
        public string Gridviewsql
        {
            get
            {
                return GidView_SQL;
            }
            set
            {
                this.GidView_SQL = value;
            }
        }


        [Description("设置默认值"), Browsable(true), Category("N8")]
        public string Connsql
        {
            get
            {
                return Cnn_SQL;
            }
            set
            {
                this.Cnn_SQL = value;
            }
        }


        
		#endregion
		
		#region EventHandlers
		/// <summary>
		/// This method is invoked when the user double clicks the textbox in the control.
		/// It displays the calculator window which allows to insert the numbers.
		/// </summary>
		/// <param name="sender">The original sender object of the event</param>
		/// <param name="e">The parameters given.</param>
		private void textBoxNumber_DoubleClick(object sender, System.EventArgs e)
		{

            // Create a new instance of the calculator window
            NumberPickerInput input = new NumberPickerInput(this.textBoxNumber);
            // Calculate the position of the input form
            System.Drawing.Point location = this.PointToScreen(this.textBoxNumber.Location);
            int x = location.X + this.textBoxNumber.Width;
            int y = location.Y;
            // Set the location of the window
            input.Location = new System.Drawing.Point(x, y);
            // Validate it before showing the numeric pad
            CancelEventArgs args = new CancelEventArgs(false);
            this.textBoxNumber_Validation(this, args);
            if (args.Cancel == false)
            {
                input.Show();
            }
		}


		private void textBoxNumber_Validation(object sender,CancelEventArgs ce)
		{
			try
			{
				if(this.textBoxNumber.Text.Length != 0) 
				{
					double value = Double.Parse(this.textBoxNumber.Text);
				}
			}
			catch(Exception)
			{
				ce.Cancel=true;
				MessageBox.Show("Please Enter Numeric Value");
			}
		}

		#endregion

        private void button1_Click(object sender, EventArgs e)
        {
            // Create a new instance of the calculator window
            ReferenceFrm input = new ReferenceFrm(this.textBoxNumber, Node_SQL, GidView_SQL,Cnn_SQL);
            // Calculate the position of the input form
            System.Drawing.Point location = this.PointToScreen(this.textBoxNumber.Location);
            int x = location.X + this.textBoxNumber.Width;
            int y = location.Y;
            // Set the location of the window
            input.Location = new System.Drawing.Point(x, y);
            // Validate it before showing the numeric pad
            CancelEventArgs args = new CancelEventArgs(false);
            //this.textBoxNumber_Validation(this, args);
            if (args.Cancel == false)
            {
                input.ShowDialog();
            }
        }
	}
}