mytextbox.vb

The Management Information System of Library using .NET

Public Class mytextbox
    Inherits System.Windows.Forms.TextBox

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()
        Me.BackColor = Color.White
        Me.BorderStyle = BorderStyle.FixedSingle
        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    'UserControl 重写 dispose 以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub

#End Region

    Private Sub mytextbox_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.GotFocus
        Me.BackColor = System.Drawing.SystemColors.Info
    End Sub

    Private Sub mytextbox_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.LostFocus
        Me.BackColor = Color.White
    End Sub
End Class