C#中对DatagridView部分常用操作

this.currentposition = this.dataGridView1.BindingContext 

[this.dataGridView1.DataSource, this.dataGridView1.DataMember].Position; 

bookContent = this.database.dataSet.Tables[0].Rows 

[this.currentposition][21].ToString().Trim(); 

MessageBox.Show(bookContent); 


1、自定义列 


//定义列宽 

this.dataGridView1.Columns[0].Width = 80; 

this.dataGridView1.Columns[1].Width = 80; 

this.dataGridView1.Columns[2].Width = 180; 

this.dataGridView1.Columns[3].Width = 120; 

this.dataGridView1.Columns[4].Width = 120; 

Customize Cells and Columns in the Windows Forms 

DataGridView Control by Extending TheirBehavior and 

AppearanceHost 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 ControlSamples： 

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 ControlSamples: 

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 ControlSamples： 

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 ControlSamples： 

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 ControlSamples: 

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 ControlSamples： 

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 ControlSamples: 


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 ControlSamples： 

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-OnlySamples： 

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


13、移去自动生成的列 


Remove Autogenerated Columns from a Windows Forms DataGridView ControlSample: 

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 ControlSample： 

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 

Controlthis.dataGridView1.EditMode 

= DataGridViewEditMode.EditOnEnter; 


16、新行指定默认值 


Specify Default Values for New Rows in the Windows 

Forms DataGridView ControlSample： 

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 ControlSamples： 

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; 

} 

} 

} 

18、数据提交到dataset中 


DataSet ds = new DataSet("MyDataSet"); 

ds.Tables[biaom.Trim()].Rows.Clear(); 

try{for (int i = 0; i < dataGridView1.Rows.Count - 1; i++){ 

DataTable dt = ds.Tables[biaom.Trim()]; 

DataRow myrow = ds.Tables[biaom.Trim()].NewRow(); 

for (int j = 0; j < dataGridView1.Columns.Count; j++){ 

myrow[j] = Convert.ToString(dataGridView1.Rows[i].Cells[j].Value); 

} 

ds.Tables[biaom.Trim()].Rows.Add(myrow); 

} 

} 

catch (Exception){ 

MessageBox.Show("输入类型错误！"); 

return; 

} 

 以上就是C#中对DatagridView部分常用操作的内容，更多相关内容请关注PHP中文网（m.sbmmt.com）！