本文整理汇总了VB.NET中System.Windows.Forms.UserControl类的典型用法代码示例。如果您正苦于以下问题:VB.NET UserControl类的具体用法?VB.NET UserControl怎么用?VB.NET UserControl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。
在下文中一共展示了UserControl类的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: New
' 导入命名空间
Imports System.Windows.Forms
Imports System.Drawing
Imports System.ComponentModel
Namespace UserControls
Public Class MyCustomerInfoUserControl
Inherits System.Windows.Forms.UserControl
' Create the controls.
Private errorProvider1 As System.Windows.Forms.ErrorProvider
Private textName As System.Windows.Forms.TextBox
Private textAddress As System.Windows.Forms.TextBox
Private textCity As System.Windows.Forms.TextBox
Private textStateProvince As System.Windows.Forms.TextBox
Private textPostal As System.Windows.Forms.TextBox
Private textCountryRegion As System.Windows.Forms.TextBox
Private WithEvents textEmail As System.Windows.Forms.TextBox
Private labelName As System.Windows.Forms.Label
Private labelAddress As System.Windows.Forms.Label
Private labelCityStateProvincePostal As System.Windows.Forms.Label
Private labelCountryRegion As System.Windows.Forms.Label
Private labelEmail As System.Windows.Forms.Label
Private components As System.ComponentModel.IContainer
' Define the constructor.
Public Sub New()
InitializeComponent()
End Sub
' Initialize the control elements.
Public Sub InitializeComponent()
' Initialize the controls.
components = New System.ComponentModel.Container()
errorProvider1 = New System.Windows.Forms.ErrorProvider()
textName = New System.Windows.Forms.TextBox()
textAddress = New System.Windows.Forms.TextBox()
textCity = New System.Windows.Forms.TextBox()
textStateProvince = New System.Windows.Forms.TextBox()
textPostal = New System.Windows.Forms.TextBox()
textCountryRegion = New System.Windows.Forms.TextBox()
textEmail = New System.Windows.Forms.TextBox()
labelName = New System.Windows.Forms.Label()
labelAddress = New System.Windows.Forms.Label()
labelCityStateProvincePostal = New System.Windows.Forms.Label()
labelCountryRegion = New System.Windows.Forms.Label()
labelEmail = New System.Windows.Forms.Label()
' Set the tab order, text alignment, size, and location of the controls.
textName.Location = New System.Drawing.Point(120, 8)
textName.Size = New System.Drawing.Size(232, 20)
textName.TabIndex = 0
textAddress.Location = New System.Drawing.Point(120, 32)
textAddress.Size = New System.Drawing.Size(232, 20)
textAddress.TabIndex = 1
textCity.Location = New System.Drawing.Point(120, 56)
textCity.Size = New System.Drawing.Size(96, 20)
textCity.TabIndex = 2
textStateProvince.Location = New System.Drawing.Point(216, 56)
textStateProvince.Size = New System.Drawing.Size(56, 20)
textStateProvince.TabIndex = 3
textPostal.Location = New System.Drawing.Point(272, 56)
textPostal.Size = New System.Drawing.Size(80, 20)
textPostal.TabIndex = 4
textCountryRegion.Location = New System.Drawing.Point(120, 80)
textCountryRegion.Size = New System.Drawing.Size(232, 20)
textCountryRegion.TabIndex = 5
textEmail.Location = New System.Drawing.Point(120, 104)
textEmail.Size = New System.Drawing.Size(232, 20)
textEmail.TabIndex = 6
labelName.Location = New System.Drawing.Point(8, 8)
labelName.Size = New System.Drawing.Size(112, 23)
labelName.Text = "Name:"
labelName.TextAlign = System.Drawing.ContentAlignment.MiddleRight
labelAddress.Location = New System.Drawing.Point(8, 32)
labelAddress.Size = New System.Drawing.Size(112, 23)
labelAddress.Text = "Address:"
labelAddress.TextAlign = System.Drawing.ContentAlignment.MiddleRight
labelCityStateProvincePostal.Location = New System.Drawing.Point(8, 56)
labelCityStateProvincePostal.Size = New System.Drawing.Size(112, 23)
labelCityStateProvincePostal.Text = "City, St/Prov. Postal:"
labelCityStateProvincePostal.TextAlign = System.Drawing.ContentAlignment.MiddleRight
labelCountryRegion.Location = New System.Drawing.Point(8, 80)
labelCountryRegion.Size = New System.Drawing.Size(112, 23)
labelCountryRegion.Text = "Country/Region:"
labelCountryRegion.TextAlign = System.Drawing.ContentAlignment.MiddleRight
labelEmail.Location = New System.Drawing.Point(8, 104)
labelEmail.Size = New System.Drawing.Size(112, 23)
labelEmail.Text = "email:"
labelEmail.TextAlign = System.Drawing.ContentAlignment.MiddleRight
' Add the controls to the user control.
Controls.AddRange(New System.Windows.Forms.Control() {labelName, _
labelAddress, labelCityStateProvincePostal, labelCountryRegion, _
labelEmail, textName, textAddress, textCity, textStateProvince, _
textPostal, textCountryRegion, textEmail})
' Size the user control.
Size = New System.Drawing.Size(375, 150)
End Sub
Private Sub MyValidatingCode()
' Confirm there is text in the control.
If textEmail.Text.Length = 0 Then
Throw New Exception("Email address is a required field")
Else
' Confirm that there is a "." and an "@" in the email address.
If textEmail.Text.IndexOf(".") = - 1 Or textEmail.Text.IndexOf("@") = - 1 Then
Throw New Exception("Email address must be valid email address format." + _
Microsoft.VisualBasic.ControlChars.Cr + "For example 'someone@example.com'")
End If
End If
End Sub
' Validate the data input by the user into textEmail.
Private Sub textEmail_Validating(sender As Object, _
e As System.ComponentModel.CancelEventArgs) Handles textEmail.Validating
Try
MyValidatingCode()
Catch ex As Exception
' Cancel the event and select the text to be corrected by the user.
e.Cancel = True
textEmail.Select(0, textEmail.Text.Length)
' Set the ErrorProvider error with the text to display.
Me.errorProvider1.SetError(textEmail, ex.Message)
End Try
End Sub
Private Sub textEmail_Validated(sender As Object, _
e As System.EventArgs) Handles textEmail.Validated
' If all conditions have been met, clear the error provider of errors.
errorProvider1.SetError(textEmail, "")
End Sub
End Class
End Namespace