本文整理汇总了VB.NET中System.Windows.Forms.DataGridViewRowContextMenuStripNeededEventArgs类的典型用法代码示例。如果您正苦于以下问题:VB.NET DataGridViewRowContextMenuStripNeededEventArgs类的具体用法?VB.NET DataGridViewRowContextMenuStripNeededEventArgs怎么用?VB.NET DataGridViewRowContextMenuStripNeededEventArgs使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。
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示例1: Form1
' 导入命名空间
Imports System.Data
Imports System.Data.SqlClient
Imports System.Drawing
Imports System.Windows.Forms
Class Form1
Inherits Form
Private WithEvents dataGridView1 As New DataGridView()
Private WithEvents employeeMenuStrip As New ContextMenuStrip()
Private WithEvents managerMenuStrip As New ContextMenuStrip()
Private WithEvents toolStripMenuItem1 As New ToolStripMenuItem()
Private WithEvents toolStripMenuItem2 As New ToolStripMenuItem()
Private WithEvents toolStripMenuItem3 As New ToolStripMenuItem()
Private contextMenuRowIndex As Integer
Public Sub New()
Me.Size = New Size(700, 300)
Me.Controls.Add(dataGridView1)
toolStripMenuItem1.Text = "View Employee Sales Report"
toolStripMenuItem2.Text = "View Team Sales Report"
toolStripMenuItem3.Text = "View Company Sales Team Ranking Report"
With employeeMenuStrip
.Items.Add(toolStripMenuItem1)
End With
With managerMenuStrip
.Items.Add(toolStripMenuItem2)
.Items.Add(toolStripMenuItem3)
End With
PopulateDataGridView()
End Sub
' Establish the main entry point for the application.
<STAThreadAttribute()> _
Public Shared Sub Main()
Application.Run(New Form1())
End Sub
Private Sub PopulateDataGridView()
With dataGridView1
.Dock = DockStyle.Fill
.AllowUserToAddRows = False
.MultiSelect = False
.ReadOnly = True
.AllowUserToDeleteRows = False
End With
Dim query As String
query = "SELECT e1.*, e2.FirstName + ' ' + e2.LastName AS Manager "
query &= "FROM employees AS e1 LEFT JOIN employees AS e2 "
query &= "ON e1.ReportsTo = e2.EmployeeID"
' Connect to the database
Dim sqlConnection1 As New SqlConnection( _
"Integrated Security=SSPI;Persist Security Info=False;" & _
"Initial Catalog=Northwind;Data Source=localhost")
Dim sqlDataAdapter1 As New SqlDataAdapter(query, _
sqlConnection1)
Dim dataTable1 As New System.Data.DataTable()
dataTable1.Locale = System.Globalization.CultureInfo.InvariantCulture
sqlDataAdapter1.Fill(dataTable1)
dataGridView1.DataSource = dataTable1
End Sub
Private Sub dataGridView1_DataBindingComplete(ByVal sender As Object, _
ByVal e As DataGridViewBindingCompleteEventArgs) _
Handles dataGridView1.DataBindingComplete
' Hide some of the columns.
With dataGridView1
.Columns("EmployeeID").Visible = False
.Columns("Address").Visible = False
.Columns("TitleOfCourtesy").Visible = False
.Columns("BirthDate").Visible = False
.Columns("HireDate").Visible = False
.Columns("PostalCode").Visible = False
.Columns("Photo").Visible = False
.Columns("Notes").Visible = False
.Columns("ReportsTo").Visible = False
.Columns("PhotoPath").Visible = False
End With
' Disable sorting for the DataGridView.
Dim i As DataGridViewColumn
For Each i In dataGridView1.Columns
i.SortMode = DataGridViewColumnSortMode.NotSortable
Next i
dataGridView1.AutoResizeColumns()
End Sub
Public Sub dataGridView1_RowContextMenuStripNeeded( _
ByVal sender As Object, _
ByVal e As DataGridViewRowContextMenuStripNeededEventArgs) _
Handles dataGridView1.RowContextMenuStripNeeded
Dim dataGridViewRow1 As DataGridViewRow = _
dataGridView1.Rows(e.RowIndex)
toolStripMenuItem1.Enabled = True
' Show the appropriate ContextMenuStrip based on the employees title.
If dataGridViewRow1.Cells("Title").Value.ToString() = _
"Sales Manager" OrElse _
dataGridViewRow1.Cells("Title").Value.ToString() = _
"Vice President, Sales" Then
e.ContextMenuStrip = managerMenuStrip
Else
e.ContextMenuStrip = employeeMenuStrip
End If
contextMenuRowIndex = e.RowIndex
End Sub
Public Sub dataGridView1_CellToolTipTextNeeded(ByVal sender As Object, _
ByVal e As DataGridViewCellToolTipTextNeededEventArgs) _
Handles dataGridView1.CellToolTipTextNeeded
Dim newLine As String = Environment.NewLine
If e.RowIndex > -1 Then
Dim dataGridViewRow1 As DataGridViewRow = _
dataGridView1.Rows(e.RowIndex)
' Add the employee's ID to the ToolTipText.
e.ToolTipText = String.Format("EmployeeID {0}: {1}", _
dataGridViewRow1.Cells("EmployeeID").Value.ToString(), _
newLine)
' Add the employee's name to the ToolTipText.
e.ToolTipText += String.Format("{0} {1} {2} {3}", _
dataGridViewRow1.Cells("TitleOfCourtesy").Value.ToString(), _
dataGridViewRow1.Cells("FirstName").Value.ToString(), _
dataGridViewRow1.Cells("LastName").Value.ToString(), _
newLine)
' Add the employee's title to the ToolTipText.
e.ToolTipText += String.Format("{0}{1}{2}", _
dataGridViewRow1.Cells("Title").Value.ToString(), _
newLine, newLine)
' Add the employee's contact information to the ToolTipText.
e.ToolTipText += String.Format("{0}{1}{2}, ", _
dataGridViewRow1.Cells("Address").Value.ToString(), newLine, _
dataGridViewRow1.Cells("City").Value.ToString())
If Not String.IsNullOrEmpty( _
dataGridViewRow1.Cells("Region").Value.ToString())
e.ToolTipText += String.Format("{0}, ", _
dataGridViewRow1.Cells("Region").Value.ToString())
End If
e.ToolTipText += String.Format("{0}, {1}{2}{3} EXT:{4}{5}{6}", _
dataGridViewRow1.Cells("Country").Value.ToString(), _
dataGridViewRow1.Cells("PostalCode").Value.ToString(), _
newLine, _
dataGridViewRow1.Cells("HomePhone").Value.ToString(), _
dataGridViewRow1.Cells("Extension").Value.ToString(), _
newLine, newLine)
' Add employee information to the ToolTipText.
Dim HireDate As DateTime = _
CType(dataGridViewRow1.Cells("HireDate").Value, DateTime)
e.ToolTipText += _
String.Format("Employee since: {0}/{1}/{2}{3}Manager: {4}", _
HireDate.Month.ToString(), HireDate.Day.ToString(), _
HireDate.Year.ToString(), newLine, _
dataGridViewRow1.Cells("Manager").Value.ToString())
End If
End Sub
Public Sub toolStripMenuItem1_Click(ByVal sender As Object, _
ByVal e As EventArgs) Handles toolStripMenuItem1.Click
Dim dataGridViewRow1 As DataGridViewRow = _
dataGridView1.Rows(contextMenuRowIndex)
MessageBox.Show(String.Format( _
"Sales Report for {0} {1}:{2}{3}Reporting Not Implemented", _
dataGridViewRow1.Cells("FirstName").Value.ToString(), _
dataGridViewRow1.Cells("LastName").Value.ToString(), _
Environment.NewLine, Environment.NewLine))
End Sub
Public Sub toolStripMenuItem2_Click(ByVal sender As Object, _
ByVal e As EventArgs) Handles toolStripMenuItem2.Click
Dim dataGridViewRow1 As DataGridViewRow = _
dataGridView1.Rows(contextMenuRowIndex)
MessageBox.Show(String.Format( _
"Sales Report for {0} {1}:{2}{3}Reporting Not Implemented", _
dataGridViewRow1.Cells("FirstName").Value.ToString(), _
dataGridViewRow1.Cells("LastName").Value.ToString(), _
Environment.NewLine, Environment.NewLine))
End Sub
Public Sub toolStripMenuItem3_Click(ByVal sender As Object, _
ByVal e As EventArgs) Handles toolStripMenuItem3.Click
Dim dataGridViewRow1 As DataGridViewRow = _
dataGridView1.Rows(contextMenuRowIndex)
MessageBox.Show(String.Format( _
"Company Sales Ranking Report:{0}{1}Reporting not implemented.", _
Environment.NewLine, Environment.NewLine))
End Sub
End Class
开发者ID:VB.NET开发者,项目名称:System.Windows.Forms,代码行数:216,代码来源:DataGridViewRowContextMenuStripNeededEventArgs