VB.Net/GUI/TextBox — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 19:40, 26 мая 2010
Содержание
Bind String Array into TextBox
<source lang="vbnet"> Imports System Imports System.Data Imports System.Windows.Forms
public class MainClass
Shared Sub Main() Dim form1 As Form = New Form1 Application.Run(form1) End Sub
End Class Public Class Form1
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. 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 "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. Friend WithEvents TextBox1 As System.Windows.Forms.TextBox <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Location = New System.Drawing.Point(8, 8) Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(160, 20) Me.TextBox1.TabIndex = 0 Me.TextBox1.Text = "TextBox1" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(184, 37) Me.Controls.Add(Me.TextBox1) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout(False) End Sub
- End Region
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim carDetails() As String = _ {"Ferrari", "Red", "F355", "1965", "?25,000"} TextBox1.DataBindings.Add("text", carDetails, "") End Sub
End Class
</source>
Disable the Context Menu for a TextBox
<source lang="vbnet"> Imports System Imports System.Runtime.InteropServices Imports System.Drawing Imports System.ruponentModel Imports System.Windows.Forms Imports System.IO Public Class MainClass
Shared Sub Main(ByVal args As String()) Dim myform As Form = New Form1() Application.Run(myform) End Sub
End Class
Public Class Form1
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim text_box As New NoContextMenuTextBox text_box.Location = New Point(TextBox1.Left, TextBox1.Top + TextBox1.Height + 4) text_box.Size = TextBox1.Size Me.Controls.Add(text_box) End Sub
End Class Public Class NoContextMenuTextBox
Inherits System.Windows.Forms.TextBox Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message) Const WM_CONTEXTMENU As Integer = &H7B If m.Msg <> WM_CONTEXTMENU Then MyBase.WndProc(m) End If End Sub
End Class
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1
Inherits System.Windows.Forms.Form "Form overrides dispose to clean up the component list. <System.Diagnostics.DebuggerNonUserCode()> _ Protected Overrides Sub Dispose(ByVal disposing As Boolean) If disposing AndAlso components IsNot Nothing Then components.Dispose() End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> _ Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Location = New System.Drawing.Point(16, 16) Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(120, 20) Me.TextBox1.TabIndex = 0 " "Form1 " Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!) Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font Me.ClientSize = New System.Drawing.Size(156, 102) Me.Controls.Add(Me.TextBox1) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout(False) Me.PerformLayout() End Sub Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
End Class
</source>
Save What is in TextBox to Text File
<source lang="vbnet"> Imports System.Windows.Forms Imports System.IO
Module Module1
Sub Main() Application.Run(New Form1) End Sub
End Module
Public Class Form1
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. 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 "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. Friend WithEvents TextBox1 As System.Windows.Forms.TextBox Friend WithEvents Button1 As System.Windows.Forms.Button <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox() Me.Button1 = New System.Windows.Forms.Button() Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Location = New System.Drawing.Point(24, 24) Me.TextBox1.Multiline = True Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(288, 248) Me.TextBox1.TabIndex = 0 Me.TextBox1.Text = "" " "Button1 " Me.Button1.Location = New System.Drawing.Point(128, 296) Me.Button1.Name = "Button1" Me.Button1.TabIndex = 1 Me.Button1.Text = "Save" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(336, 349) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.TextBox1}) Me.Name = "Form1" Me.Text = "TextBoxInput" Me.ResumeLayout(False) End Sub
- End Region
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim TargetFile As StreamWriter Try TargetFile = New StreamWriter("test.txt", True) Catch MessageBox.Show("Error opening " & "test.txt") End Try Try TargetFile.WriteLine(Now()) TargetFile.Write(TextBox1.Text) TargetFile.WriteLine() TargetFile.WriteLine() Catch MessageBox.Show("Error writing file") End Try TargetFile.Close() MessageBox.Show("Text saved to " & "test.txt") End Sub
End Class
</source>
Set TextBox Text
<source lang="vbnet"> Imports System.Windows.Forms
Module Module1
Sub Main() Application.Run(New Form1) End Sub
End Module
Public Class Form1
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. 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 "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. Friend WithEvents TextBox1 As System.Windows.Forms.TextBox Friend WithEvents DateTimePicker1 As System.Windows.Forms.DateTimePicker Friend WithEvents Button1 As System.Windows.Forms.Button <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox() Me.DateTimePicker1 = New System.Windows.Forms.DateTimePicker() Me.Button1 = New System.Windows.Forms.Button() Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Location = New System.Drawing.Point(32, 40) Me.TextBox1.Multiline = True Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(408, 208) Me.TextBox1.TabIndex = 0 Me.TextBox1.Text = "" " "DateTimePicker1 " Me.DateTimePicker1.Location = New System.Drawing.Point(128, 264) Me.DateTimePicker1.Name = "DateTimePicker1" Me.DateTimePicker1.TabIndex = 1 " "Button1 " Me.Button1.Location = New System.Drawing.Point(168, 312) Me.Button1.Name = "Button1" Me.Button1.Size = New System.Drawing.Size(112, 23) Me.Button1.TabIndex = 2 Me.Button1.Text = "Get Time" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(472, 349) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.DateTimePicker1, Me.TextBox1}) Me.Name = "Form1" Me.Text = "FilesSince" Me.ResumeLayout(False) End Sub
- End Region
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click TextBox1.AppendText(DateTimePicker1.Value.ToString & " ") End Sub
End Class
</source>
TextBox KeyPressed Event
<source lang="vbnet"> Imports System Imports System.Collections Imports System.Data Imports System.IO Imports System.Xml.Serialization Imports System.Windows.Forms Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Text Imports System.Drawing.Printing
Public Class MainClass
Shared Sub Main() Dim form1 As Form = New Form1() Application.Run(form1) End Sub
End Class
Public Class Form1
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. 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 Friend WithEvents TextBox1 As System.Windows.Forms.TextBox Friend WithEvents Label1 As System.Windows.Forms.Label "Required by the Windows Form Designer Private components As System.ruponentModel.Container "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox() Me.Label1 = New System.Windows.Forms.Label() Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.2!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)) Me.TextBox1.Location = New System.Drawing.Point(48, 104) Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(192, 27) Me.TextBox1.TabIndex = 1 Me.TextBox1.Text = "" " "Label1 " Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.2!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)) Me.Label1.Location = New System.Drawing.Point(24, 24) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(232, 48) Me.Label1.TabIndex = 2 Me.Label1.Text = "Type somthing" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15) Me.ClientSize = New System.Drawing.Size(292, 268) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label1, Me.TextBox1}) Me.Name = "Form1" Me.Text = "Key Event Examples" Me.ResumeLayout(False) End Sub
- End Region
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged End Sub Private Sub TextBox1_KeyPress(ByVal sender As Object, _ ByVal e As System.Windows.Forms.KeyPressEventArgs) _ Handles TextBox1.KeyPress MessageBox.Show("KeyPress") e.Handled = True End Sub
End Class
</source>
TextBox Text changed event
<source lang="vbnet"> Imports System Imports System.Collections Imports System.Data Imports System.IO Imports System.Xml.Serialization Imports System.Windows.Forms Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Drawing.Text Imports System.Drawing.Printing
Public Class MainClass
Shared Sub Main() Dim form1 As Form = New Form1() Application.Run(form1) End Sub
End Class
Public Class Form1
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. 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 Friend WithEvents TextBox1 As System.Windows.Forms.TextBox Friend WithEvents Label1 As System.Windows.Forms.Label "Required by the Windows Form Designer Private components As System.ruponentModel.Container "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.TextBox1 = New System.Windows.Forms.TextBox() Me.Label1 = New System.Windows.Forms.Label() Me.SuspendLayout() " "TextBox1 " Me.TextBox1.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.2!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)) Me.TextBox1.Location = New System.Drawing.Point(48, 104) Me.TextBox1.Name = "TextBox1" Me.TextBox1.Size = New System.Drawing.Size(192, 27) Me.TextBox1.TabIndex = 1 Me.TextBox1.Text = "" " "Label1 " Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", 10.2!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)) Me.Label1.Location = New System.Drawing.Point(24, 24) Me.Label1.Name = "Label1" Me.Label1.Size = New System.Drawing.Size(232, 48) Me.Label1.TabIndex = 2 Me.Label1.Text = "Type somthing" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(6, 15) Me.ClientSize = New System.Drawing.Size(292, 268) Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label1, Me.TextBox1}) Me.Name = "Form1" Me.Text = "Key Event Examples" Me.ResumeLayout(False) End Sub
- End Region
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged MessageBox.Show("Text Changed") End Sub
End Class
</source>