1、自定义列

Customize Cells and Columns in the Windows Forms DataGridView Control by Extending Their
Behavior and Appearance
Host Controls in Windows Forms DataGridView Cells
继承 DataGridViewTextBoxCell 类生成新的Cell类，然后再继承 DataGridViewColumn 生成新的Column类，并指定
CellTemplate为新的Cell类。新生成的Column便可以增加到DataGridView中去。
2、自动适应列宽
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);DataGridView.AutoSizeRows(          DataGridViewAutoSizeRowCriteria.HeaderAndColumns,            0, dataGridView1.Rows.Count, false);

3、可以绑定并显示对象
Bind Objects to Windows Forms DataGridView Controls
4、可以改变表格线条风格
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、动态改变列是否显示，和动态改变列的显示顺序
Change the Order of the Columns in the Windows Forms DataGridView Control
Samples：
 

  
customersDataGridView.Columns["CustomerID"].Visible = false;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、可以在列中显示图像
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、格式化显示内容:
Format Data in the Windows Forms DataGridView Control
Samples:
 

  
this.dataGridView1.Columns["UnitPrice"].DefaultCellStyle.Format = "c";this.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、在拖动列的滚动条时可以将指定的列冻结
Freeze Columns in the Windows Forms DataGridView Control
Samples：将指定列及以前的列固定不动
 

  
this.dataGridView1.Columns["AddToCartButton"].Frozen = true;

9、获取选择的单元格,行,列
Get the Selected Cells, Rows, and Columns in the Windows Forms DataGridView Control
Samples:
见msdn。
10、显示录入时出现的错误信息
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、大数据量显示采用Virtual Mode
Implement Virtual Mode in the Windows Forms DataGridView Control
12、设置指定的列只读
Make Columns in the Windows Forms DataGridView Control Read-Only
Samples：
 

  
dataGridView1.Columns["CompanyName"].ReadOnly = true;

13、移去自动生成的列
Remove Autogenerated Columns from a Windows Forms DataGridView Control
Sample:
 

  
dataGridView1.AutoGenerateColumns = true;dataGridView1.DataSource = customerDataSet;dataGridView1.Columns.Remove("Fax");

或：
 

  
dataGridView1.Columns["CustomerID"].Visible = false;

14、自定义选择模式
Set the Selection Mode of the Windows Forms DataGridView Control
Sample：
 

  
this.dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;this.dataGridView1.MultiSelect = false;

15、自定义设定光标进入单元格是否编辑模式（编辑模式）
Specify the Edit Mode for the Windows Forms DataGridView Control
 

  
this.dataGridView1.EditMode = DataGridViewEditMode.EditOnEnter;

16、新行指定默认值
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、数据验证
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;        }    }}