DataGridView新特色(vs2005)

1、自定義列
   Customize Cells and Columns in the Windows Forms DataGridVIEw Control by Extending Their
    Behavior and Appearance
    Host Controls in Windows Forms DataGridVIEw Cells
    繼承 DataGridViewTextBoxCell 類生成新的Cell類，然後再繼承 DataGridVIEwColumn 生成新的Column類，並指定
    CellTemplate為新的Cell類。新生成的Column便可以增加到DataGridVIEw中去。
2、自動適應列寬
    Programmatically Resize Cells to Fit Content in the Windows Forms DataGridVIEw Control
    Samples：
    DataGridVIEw.AutoSizeColumns(
           DataGridVIEwAutoSizeColumnCriteria.HeaderAndDisplayedRows);
    DataGridVIEw.AutoSizeColumn(
                DataGridVIEwAutoSizeColumnCriteria.HeaderOnly,
                2, false);
    DataGridVIEw.AutoSizeRow(
                DataGridVIEwAutoSizeRowCriteria.Columns,
                2, false);
    

: #ffff66">DataGridVIEw.AutoSizeRows(
              DataGridVIEwAutoSizeRowCriteria.HeaderAndColumns,
                0, dataGridVIEw1.Rows.Count, false);
3、可以綁定並顯示對象
    Bind Objects to Windows Forms DataGridVIEw Controls
4、可以改變表格線條風格
    Change the Border and Gridline Styles in the Windows Forms DataGridVIEw Control
    Samples:
    this.dataGridVIEw1.GridColor = Color.BlueViolet;
    this.dataGridVIEw1.BorderStyle = BorderStyle.Fixed3D;
    this.dataGridVIEw1.CellBorderStyle = DataGridVIEwCellBorderStyle.None;
    this.dataGridVIEw1.RowHeadersBorderStyle = DataGridVIEwHeaderBorderStyle.Single;
    this.dataGridVIEw1.ColumnHeadersBorderStyle = DataGridVIEwHeaderBorderStyle.Single;
5、動態改變列是否顯示，和動態改變列的顯示順序
    Change the Order of the Columns in the Windows Forms DataGridVIEw Control
    Samples：
    customersDataGridVIEw.Columns["CustomerID"].Visible = false;

t size="2">    customersDataGridVIEw.Columns["ContactName"].DisplayIndex = 0;
    customersDataGridVIEw.Columns["ContactTitle"].DisplayIndex = 1;
    customersDataGridVIEw.Columns["City"].DisplayIndex = 2;
    customersDataGridVIEw.Columns["Country"].DisplayIndex = 3;
    customersDataGridVIEw.Columns["CompanyName"].DisplayIndex = 4;
6、可以在列中顯示圖像
    Display Images in Cells of the Windows Forms DataGridVIEw Control
    Samples：
            Icon treeIcon = new Icon(this.GetType(), "tree.ico");
    DataGridViewImageColumn iconColumn = new DataGridVIEwImageColumn ();
           iconColumn.Image = treeIcon.ToBitmap();
           iconColumn.Name = "Tree";
           iconColumn.HeaderText = "Nice tree";
           dataGridVIEw1.Columns.Insert(2, iconColumn);
7、格式化顯示內容:
    Format Data in the Windows Forms DataGridVIEw Control
    Samples:
    this.dataGridVIEw1.Columns["UnitPrice"].DefaultCellStyle.Format = "c";
    this.fff66">dataGridVIEw1.Columns["ShipDate"].DefaultCellStyle.Format = "d";
    this.dataGridVIEw1.DefaultCellStyle.NullValue = "no entry";
    this.dataGridVIEw1.DefaultCellStyle.WrapMode = DataGridVIEwWrapMode.Wrap;
    this.dataGridVIEw1.Columns["CustomerName"].DefaultCellStyle.Alignment =
                         DataGridVIEwContentAlignment.MiddleRight;
   
8、在拖動列的滾動條時可以將指定的列凍結
    Freeze Columns in the Windows Forms DataGridVIEw Control
    Samples：將指定列及以前的列固定不動
    this.dataGridVIEw1.Columns["AddToCartButton"].Frozen = true;
9、獲取選擇的單元格,行,列
    Get the Selected Cells, Rows, and Columns in the Windows Forms DataGridVIEw Control
    Samples:
       見msdn。
10、顯示錄入時出現的錯誤信息
    Handle Errors that Occur During Data Entry in the Windows Forms DataGridVIEw Control
    Samples：
    private void dataGridVIEw1_DataError(object sender,

        DataGridVIEwDataErrorEventArgs e)
        {
        // If the data source raises an exception when a cell value is
        // commited, display an error message.
        if (e.Exception != null &&
            e.Context == DataGridVIEwDataErrorContext.Commit)
        {
            MessageBox.Show("CustomerID value must be unique.");
        }
        }
11、大數據量顯示采用Virtual Mode
    Implement Virtual Mode in the Windows Forms DataGridVIEw Control
12、設置指定的列只讀
    Make Columns in the Windows Forms DataGridVIEw Control Read-Only
    Samples：
    dataGridVIEw1.Columns["CompanyName"].ReadOnly = true;
 
13、移去自動生成的列
    Remove Autogenerated Columns from a Windows Forms DataGridVIEw Control
    Sample:
-COLOR: #ffff66">dataGridVIEw1.AutoGenerateColumns = true;
   

lack; BACKGROUND-COLOR: #ffff66">dataGridVIEw1.DataSource = customerDataSet;
    dataGridVIEw1.Columns.Remove ("Fax");
    或：
    dataGridVIEw1.Columns["CustomerID"].Visible = false;
14、自定義選擇模式
    Set the Selection Mode of the Windows Forms DataGridVIEw Control
    Sample：
    this.dataGridVIEw1.SelectionMode = DataGridVIEwSelectionMode.FullRowSelect;
    this.dataGridVIEw1.MultiSelect = false;
15、自定義設定光標進入單元格是否編輯模式（編輯模式）
    Specify the Edit Mode for the Windows Forms DataGridVIEw Control
    this.dataGridVIEw1.EditMode = DataGridVIEwEditMode.EditOnEnter;
16、新行指定默認值
    Specify Default Values for New Rows in the Windows Forms DataGridVIEw Control
    Sample：
    private void dataGridVIEw1_DefaultValuesNeeded(object sender,                       System.Windows.Forms.DataGridVIEwRowEventArgs e)
    {
      e.Row.Cells["Region"].Value = "WA";
       e.Row.Cells["City"].Value = "Redmond";
       e.Row.Cells["PostalCode"].Value = "98052-6399";
      e.Row.Cells["Region"].Value = "NA";
      e.Row.Cells["Country"].Value = "USA";
    e.Row.Cells["CustomerID"].Value = NewCustomerId();
    }
17、數據驗證
    Validate Data in the Windows Forms DataGridVIEw Control
    Samples：
     private void dataGridVIEw1_CellValidating(object sender,
            DataGridVIEwCellValidatingEventArgs e)
        {
        // Validate the CompanyName entry by disallowing empty strings.
        if (dataGridVIEw1.Columns[e.ColumnIndex].Name == "CompanyName")
        {
            if (e.FormattedValue.ToString() == String.Empty)
            {
                dataGridVIEw1.Rows[e.RowIndex].ErrorText =
                    "Company Name must not be empty";
                e.Cancel = true;
            }
        }
        }