Controls in .Net Framework 之 DataGrid Control

The DataGrid Control

  1 using  System;
  2 using  System.Drawing;
  3 using  System.Collections;
  4 using  System.Windows.Forms;
  5 using  System.Data;
  6
  7 namespace  DataGridSample
  8 {
  9    /**//// <summary>
 10    /// Summary description for Form1.
 11    /// </summary>
 12    public class Form1 : System.Windows.Forms.Form
 13    {
 14        private System.Windows.Forms.DataGrid dataGrid1;
 15        private System.Windows.Forms.MainMenu mainMenu1;
 16        private bool TablesAlreadyAdded;
 17        private Button button1;
 18        private DataSet    myDataSet;
 19        private DataTable    myDataTable;
 20
 21        public Form1()
 22        {
 23            //
 24            // Required for Windows Form Designer support
 25            //
 26            InitializeComponent();
 27            SetUp();
 28            //
 29            // TODO: Add any constructor code after InitializeComponent call
 30            //
 31        }
 32        /**//// <summary>
 33        /// Clean up any resources being used.
 34        /// </summary>
 35        protected override void Dispose( bool disposing )
 36        {
 37            base.Dispose( disposing );
 38        }
 39        Windows Form Designer generated code#region Windows Form Designer generated code
 40        /**//// <summary>
 41        /// Required method for Designer support - do not modify
 42        /// the contents of this method with the code editor.
 43        /// </summary>
 44        private void InitializeComponent()
 45        {
 46            this.mainMenu1 = new System.Windows.Forms.MainMenu();
 47            this.dataGrid1 = new System.Windows.Forms.DataGrid();
 48            this.button1 = new System.Windows.Forms.Button();
 49            // 
 50            // dataGrid1
 51            // 
 52            this.dataGrid1.Location = new System.Drawing.Point(40, 64);
 53            this.dataGrid1.Size = new System.Drawing.Size(168, 168);
 54            this.dataGrid1.Text = "dataGrid1";
 55            this.dataGrid1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.dataGrid1_MouseUp);
 56            // 
 57            // button1
 58            // 
 59            this.button1.Location = new System.Drawing.Point(32, 16);
 60            this.button1.Size = new System.Drawing.Size(72, 24);
 61            this.button1.Text = "button1";
 62            this.button1.Click += new System.EventHandler(this.button1_Click);
 63            // 
 64            // Form1
 65            // 
 66            this.Controls.Add(this.button1);
 67            this.Controls.Add(this.dataGrid1);
 68            this.Menu = this.mainMenu1;
 69            this.Text = "Form1";
 70            this.Load += new System.EventHandler(this.Form1_Load);
 71
 72        }
 73        #endregion
 74
 75        /**//// <summary>
 76        /// The main entry point for the application.
 77        /// </summary>
 78
 79        static void Main() 
 80        {
 81            Application.Run(new Form1());
 82        }
 83
 84        private void Form1_Load(object sender, System.EventArgs e)
 85        {
 86        
 87        }
 88        private void SetUp()
 89        {
 90            MakeDataSet();
 91            myDataTable = myDataSet.Tables["Customers"];
 92            dataGrid1.DataSource = myDataTable;
 93        }
 94        private void MakeDataSet()
 95        {
 96            //Create a DataSet
 97            myDataSet = new DataSet("myDataSet");
 98
 99            //Create a DataTable
100            DataTable tCust = new DataTable("Customers");
101            //Create three columns, and add then to the table
102            DataColumn cCustID =new DataColumn("CustID",typeof(int));
103            DataColumn cCustName =new DataColumn("CustName");
104            DataColumn cCurrent =new DataColumn("Current",typeof(bool));
105            tCust.Columns.Add(cCustID);
106            tCust.Columns.Add(cCustName);
107            tCust.Columns.Add(cCurrent);
108
109            //Add the table to the DataSet
110            myDataSet.Tables.Add(tCust);
111
112            //Create three customers in the Customers Table
113            DataRow newRowl;
114            for(int i=1;i<4;i++)
115            {
116                newRowl = tCust.NewRow();
117                newRowl["custID"] = i;
118                tCust.Rows.Add(newRowl);
119            }
120            tCust.Rows[0]["custName"] = "Customer1";
121            tCust.Rows[1]["custName"] = "Customer2";
122            tCust.Rows[2]["custName"] = "Customer3";
123
124            tCust.Rows[0]["Current"] = true;
125            tCust.Rows[1]["Current"] = false;
126            tCust.Rows[2]["Current"] = false;
127        }
128
129        private void button1_Click(object sender, System.EventArgs e)
130        {
131            if(TablesAlreadyAdded) 
132                return;
133            AddCustomDataTableStyle();
134        }
135        private void AddCustomDataTableStyle()
136        {
137            DataGridTableStyle tsl =new DataGridTableStyle();
138            tsl.MappingName = "Customer";
139            
140            DataGridColumnStyle boolCol =new DataGridTextBoxColumn();
141            boolCol.MappingName = "Current";
142            boolCol.HeaderText = "IsCurrent Customer";
143            boolCol.Width = 80;
144            tsl.GridColumnStyles.Add(boolCol);
145            dataGrid1.TableStyles.Add(tsl);
146            TablesAlreadyAdded = true;
147        }
148
149        private void dataGrid1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
150        {
151            DataGrid    myGrid = (DataGrid)sender;
152            DataGrid.HitTestInfo myHitInfo = myGrid.HitTest(e.X,e.Y);
153            Console.WriteLine(myHitInfo);
154            Console.WriteLine(myHitInfo.Type);
155            Console.WriteLine(myHitInfo.Row);
156            Console.WriteLine(myHitInfo.Column);
157
158            if(myHitInfo.Type == DataGrid.HitTestType.Cell)
159            {
160                Console.Write("Data: ");
161                object celldata =myGrid[myHitInfo.Row,myHitInfo.Column];
162                MessageBox.Show(celldata.ToString());
163            }
164        }
165    }
166}
167