我做了局域网聊天，一切正常，我想在对话框中只更改USER颜色，我尝试了所有内容并阅读了所有文章并使用了usercontroller＆amp;现在没什么用了！
是否可以从#Region＆＃34; Windows窗体设计器生成的代码＆＃34;
更改它 'txtConversation'
Me.txtConversation.BackColor = System.Drawing.Color.White
Me.txtConversation.Location = New System.Drawing.Point(15, 60)
Me.txtConversation.Multiline = True
Me.txtConversation.Name = "txtConversation"
Me.txtConversation.ReadOnly = True
Me.txtConversation.ScrollBars = System.Windows.Forms.ScrollBars.Both
Me.txtConversation.Size = New System.Drawing.Size(305, 184)
Me.txtConversation.TabIndex = 14
我尝试将此行添加到代码中也尝试了其他代码，但没有任何效果！
Me.txtConversation.BackColor = System.Drawing.Color.White
Me.txtConversation.Font = System.Drawing.Color.Red
Me.txtConversation.ForeColor = Color.Red
如果这项工作，下一步将只为对话框中的用户名制作颜色 我不知道怎么做！ 我完全失去了！
更新
Imports System.DirectoryServices
Imports System.Net
Imports System.IO
Imports System.Net.Sockets
Imports MSTSCLib
Public Class frmMain
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.ComponentModel.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 TreeView1 As System.Windows.Forms.TreeView
Friend WithEvents txtPCName As System.Windows.Forms.TextBox
Friend WithEvents txtSend As System.Windows.Forms.TextBox
Friend WithEvents CmdSend As System.Windows.Forms.Button
Friend WithEvents ImageList1 As System.Windows.Forms.ImageList
Friend WithEvents txtPCIPadd As System.Windows.Forms.TextBox
Friend WithEvents Label3 As System.Windows.Forms.Label
Friend WithEvents Timer1 As System.Windows.Forms.Timer
Friend WithEvents txtUsername As System.Windows.Forms.TextBox
Friend WithEvents Label4 As System.Windows.Forms.Label
Friend WithEvents Label5 As System.Windows.Forms.Label
Friend WithEvents txtConversation As System.Windows.Forms.TextBox
Friend WithEvents txttempmsg As System.Windows.Forms.TextBox
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Button2 As System.Windows.Forms.Button
Friend WithEvents Button3 As System.Windows.Forms.Button
Friend WithEvents box As System.Windows.Forms.RichTextBox
Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
Friend WithEvents Label2 As System.Windows.Forms.Label
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container()
Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(frmMain))
Me.CmdSend = New System.Windows.Forms.Button()
Me.TreeView1 = New System.Windows.Forms.TreeView()
Me.ImageList1 = New System.Windows.Forms.ImageList(Me.components)
Me.txtPCName = New System.Windows.Forms.TextBox()
Me.txtSend = New System.Windows.Forms.TextBox()
Me.txtPCIPadd = New System.Windows.Forms.TextBox()
Me.Label2 = New System.Windows.Forms.Label()
Me.Label3 = New System.Windows.Forms.Label()
Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
Me.txtUsername = New System.Windows.Forms.TextBox()
Me.Label4 = New System.Windows.Forms.Label()
Me.Label5 = New System.Windows.Forms.Label()
Me.txtConversation = New System.Windows.Forms.TextBox()
Me.txttempmsg = New System.Windows.Forms.TextBox()
Me.Button1 = New System.Windows.Forms.Button()
Me.Button2 = New System.Windows.Forms.Button()
Me.Button3 = New System.Windows.Forms.Button()
Me.box = New System.Windows.Forms.RichTextBox()
Me.GroupBox1 = New System.Windows.Forms.GroupBox()
Me.GroupBox1.SuspendLayout()
Me.SuspendLayout()
'
'CmdSend
'
Me.CmdSend.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.CmdSend.Location = New System.Drawing.Point(404, 265)
Me.CmdSend.Name = "CmdSend"
Me.CmdSend.Size = New System.Drawing.Size(55, 52)
Me.CmdSend.TabIndex = 0
Me.CmdSend.Text = "&Send"
'
'TreeView1
'
Me.TreeView1.BackColor = System.Drawing.Color.Gainsboro
Me.TreeView1.BorderStyle = System.Windows.Forms.BorderStyle.None
Me.TreeView1.ImageIndex = 0
Me.TreeView1.ImageList = Me.ImageList1
Me.TreeView1.Location = New System.Drawing.Point(326, 10)
Me.TreeView1.Name = "TreeView1"
Me.TreeView1.SelectedImageIndex = 0
Me.TreeView1.Size = New System.Drawing.Size(133, 234)
Me.TreeView1.TabIndex = 1
'
'ImageList1
'
Me.ImageList1.ImageStream = CType(resources.GetObject("ImageList1.ImageStream"), System.Windows.Forms.ImageListStreamer)
Me.ImageList1.TransparentColor = System.Drawing.Color.Transparent
Me.ImageList1.Images.SetKeyName(0, "")
'
'txtPCName
'
Me.txtPCName.Location = New System.Drawing.Point(82, 34)
Me.txtPCName.Name = "txtPCName"
Me.txtPCName.ReadOnly = True
Me.txtPCName.Size = New System.Drawing.Size(238, 20)
Me.txtPCName.TabIndex = 2
'
'txtSend
'
Me.txtSend.Location = New System.Drawing.Point(12, 266)
Me.txtSend.Multiline = True
Me.txtSend.Name = "txtSend"
Me.txtSend.ScrollBars = System.Windows.Forms.ScrollBars.Both
Me.txtSend.Size = New System.Drawing.Size(386, 52)
Me.txtSend.TabIndex = 3
'
'txtPCIPadd
'
Me.txtPCIPadd.Location = New System.Drawing.Point(452, 332)
Me.txtPCIPadd.Name = "txtPCIPadd"
Me.txtPCIPadd.ReadOnly = True
Me.txtPCIPadd.Size = New System.Drawing.Size(191, 20)
Me.txtPCIPadd.TabIndex = 6
'
'Label2
'
Me.Label2.AutoSize = True
Me.Label2.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label2.Location = New System.Drawing.Point(439, 328)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(71, 15)
Me.Label2.TabIndex = 7
Me.Label2.Text = "IP Address :"
'
'Label3
'
Me.Label3.AutoSize = True
Me.Label3.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label3.Location = New System.Drawing.Point(12, 247)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(58, 15)
Me.Label3.TabIndex = 9
Me.Label3.Text = "Message"
'
'Timer1
'
'
'txtUsername
'
Me.txtUsername.Location = New System.Drawing.Point(82, 10)
Me.txtUsername.Name = "txtUsername"
Me.txtUsername.ReadOnly = True
Me.txtUsername.Size = New System.Drawing.Size(238, 20)
Me.txtUsername.TabIndex = 10
'
'Label4
'
Me.Label4.AutoSize = True
Me.Label4.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label4.Location = New System.Drawing.Point(13, 10)
Me.Label4.Name = "Label4"
Me.Label4.Size = New System.Drawing.Size(70, 15)
Me.Label4.TabIndex = 11
Me.Label4.Text = "Your name:"
'
'Label5
'
Me.Label5.AutoSize = True
Me.Label5.Font = New System.Drawing.Font("Microsoft Sans Serif", 9.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label5.Location = New System.Drawing.Point(13, 35)
Me.Label5.Name = "Label5"
Me.Label5.Size = New System.Drawing.Size(44, 15)
Me.Label5.TabIndex = 12
Me.Label5.Text = "Buddy:"
'
'txtConversation
'
Me.txtConversation.BackColor = System.Drawing.Color.White
Me.txtConversation.Location = New System.Drawing.Point(506, 336)
Me.txtConversation.Multiline = True
Me.txtConversation.Name = "txtConversation"
Me.txtConversation.ReadOnly = True
Me.txtConversation.ScrollBars = System.Windows.Forms.ScrollBars.Both
Me.txtConversation.Size = New System.Drawing.Size(305, 184)
Me.txtConversation.TabIndex = 14
'
'txttempmsg
'
Me.txttempmsg.Enabled = False
Me.txttempmsg.Location = New System.Drawing.Point(12, 342)
Me.txttempmsg.Multiline = True
Me.txttempmsg.Name = "txttempmsg"
Me.txttempmsg.Size = New System.Drawing.Size(212, 23)
Me.txttempmsg.TabIndex = 15
Me.txttempmsg.Visible = False
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(6, 19)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(75, 23)
Me.Button1.TabIndex = 16
Me.Button1.Text = "Browse"
Me.Button1.UseVisualStyleBackColor = True
'
'Button2
'
Me.Button2.Location = New System.Drawing.Point(87, 19)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(75, 23)
Me.Button2.TabIndex = 17
Me.Button2.Text = "Send"
Me.Button2.UseVisualStyleBackColor = True
'
'Button3
'
Me.Button3.Location = New System.Drawing.Point(6, 71)
Me.Button3.Name = "Button3"
Me.Button3.Size = New System.Drawing.Size(156, 23)
Me.Button3.TabIndex = 18
Me.Button3.Text = "Receive"
Me.Button3.UseVisualStyleBackColor = True
'
'box
'
Me.box.BackColor = System.Drawing.SystemColors.ButtonHighlight
Me.box.Location = New System.Drawing.Point(12, 60)
Me.box.Name = "box"
Me.box.ReadOnly = True
Me.box.ScrollBars = System.Windows.Forms.RichTextBoxScrollBars.Vertical
Me.box.Size = New System.Drawing.Size(308, 184)
Me.box.TabIndex = 19
Me.box.Text = ""
'
'GroupBox1
'
Me.GroupBox1.Controls.Add(Me.Button1)
Me.GroupBox1.Controls.Add(Me.Button2)
Me.GroupBox1.Controls.Add(Me.Button3)
Me.GroupBox1.Location = New System.Drawing.Point(465, 12)
Me.GroupBox1.Name = "GroupBox1"
Me.GroupBox1.Size = New System.Drawing.Size(170, 100)
Me.GroupBox1.TabIndex = 20
Me.GroupBox1.TabStop = False
Me.GroupBox1.Text = "Send Files"
'
'frmMain
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.BackColor = System.Drawing.SystemColors.ButtonFace
Me.ClientSize = New System.Drawing.Size(646, 329)
Me.Controls.Add(Me.GroupBox1)
Me.Controls.Add(Me.box)
Me.Controls.Add(Me.txttempmsg)
Me.Controls.Add(Me.txtConversation)
Me.Controls.Add(Me.Label5)
Me.Controls.Add(Me.Label4)
Me.Controls.Add(Me.txtUsername)
Me.Controls.Add(Me.Label3)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.txtPCIPadd)
Me.Controls.Add(Me.txtSend)
Me.Controls.Add(Me.txtPCName)
Me.Controls.Add(Me.TreeView1)
Me.Controls.Add(Me.CmdSend)
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D
Me.Icon = CType(resources.GetObject("$this.Icon"), System.Drawing.Icon)
Me.MaximizeBox = False
Me.Name = "frmMain"
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
Me.Text = "KiWi Messenger"
Me.GroupBox1.ResumeLayout(False)
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
#End Region
Dim listerner As New TcpListener(44444)
Dim client As TcpClient
Dim client2 As TcpClient
Dim message As String = ""
Dim tts As Object
Dim Sound As New System.Media.SoundPlayer()
Private Sub frmMain_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
listerner.Stop()
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TextBox1.Selectionstart = TextBox1.TextLength
'TextBox1.ScrollToCaret()
Dim childEntry As DirectoryEntry
Dim ParentEntry As New DirectoryEntry()
Try
ParentEntry.Path = "WinNT:"
For Each childEntry In ParentEntry.Children
Dim newNode As New TreeNode(childEntry.Name)
Select Case childEntry.SchemaClassName
Case "Domain"
Dim ParentDomain As New TreeNode(childEntry.Name)
TreeView1.Nodes.AddRange(New TreeNode() {ParentDomain})
Dim SubChildEntry As DirectoryEntry
Dim SubParentEntry As New DirectoryEntry()
SubParentEntry.Path = "WinNT://" & childEntry.Name
For Each SubChildEntry In SubParentEntry.Children
Dim newNode1 As New TreeNode(SubChildEntry.Name)
Select Case SubChildEntry.SchemaClassName
Case "Computer"
ParentDomain.Nodes.Add(newNode1)
End Select
Next
End Select
Next
Catch Excep As Exception
MsgBox("Error While Reading Directories")
Finally
ParentEntry = Nothing
End Try
listerner.Start()
Timer1.Enabled = True
Timer1.Start()
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CmdSend.Click
AddMessage(txtUsername As String, txtSend As String)
box.SelectionColor = Color.Red
box.AppendText(vbCrLf & user & ": ")
box.SelectionColor = Color.Black
box.AppendText(txtSend)
' Shell("net send " & txtcomputer.Text & " " & txtmessage.Text)
Try
If txtPCIPadd.Text = "" Or txtUsername.Text = "" Or txtSend.Text = "" Then
MsgBox("wright a message!")
Else
client = New TcpClient(txtPCIPadd.Text, 44444)
Dim writer As New StreamWriter(client.GetStream())
txttempmsg.Text = (txtSend.Text)
writer.Write(txtUsername.Text + " : " + txtSend.Text)
box.Text = (box.Text + txtUsername.Text + " : " + txttempmsg.Text + vbCrLf)
'txtmsg.Text="You:" + txtmessage.Text)
writer.Flush()
txtSend.Text = ""
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect
txtPCName.Text = TreeView1.SelectedNode.Text
txtPCIPadd.Text = GetIPAddress(txtPCName.Text)
txtUsername.Text = System.Environment.MachineName
End Sub
Function GetIPAddress(ByVal CompName As String) As String
Dim oAddr As System.Net.IPAddress
Dim sAddr As String
Try
With System.Net.Dns.GetHostByName(CompName)
oAddr = New System.Net.IPAddress(.AddressList(0).Address)
sAddr = oAddr.ToString
End With
GetIPAddress = sAddr
Catch Excep As Exception
MsgBox(Excep.Message, MsgBoxStyle.OkOnly, "Lan Messenger")
Finally
End Try
End Function
Private Sub CmdPing_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
Shell("PING " & txtPCIPadd.Text)
End Sub
'Shell("net send ALL " & txtmessage.Text)
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Try
If listerner.Pending = True Then
message = ""
client = listerner.AcceptTcpClient
Dim reader As New StreamReader(client.GetStream())
While reader.Peek > -1
message = message + Convert.ToChar(reader.Read()).ToString
End While
Me.Focus()
box.Text = (box.Text + message + vbCrLf)
box.SelectionStart = box.TextLength
box.ScrollToCaret()
'txtmsg.Text="You:" + txtmessage.Text)
My.Computer.Audio.Play(My.Resources.alert, AudioPlayMode.Background)
Sound.Load()
Sound.Play()
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Function c() As String
Throw New NotImplementedException
End Function
Private Sub txtUsername_TextChanged(sender As Object, e As EventArgs) Handles txtUsername.TextChanged
End Sub
Private Sub txtPCName_TextChanged(sender As Object, e As EventArgs) Handles txtPCName.TextChanged
End Sub
Private Sub txtPCIPadd_TextChanged(sender As Object, e As EventArgs) Handles txtPCIPadd.TextChanged
End Sub
Private Sub txtConversation_TextChanged(sender As Object, e As EventArgs) Handles txtConversation.TextChanged
End Sub
Private Sub txtSend_TextChanged(sender As Object, e As EventArgs) Handles txtSend.TextChanged
End Sub
Private Sub RichTextBox1_TextChanged(sender As Object, e As EventArgs)
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
' Shell("net send " & txtcomputer.Text & " " & txtmessage.Text)
Try
If txtPCIPadd.Text = "" Or txtUsername.Text = "" Then
MsgBox("Choose a User")
Else
client = New TcpClient(txtPCIPadd.Text, 29250)
Dim writer As New StreamWriter(client.GetStream())
txttempmsg.Text = (txtSend.Text)
writer.Write(txtUsername.Text + " File Sending " + txtSend.Text)
txtConversation.Text = (txtConversation.Text + txtUsername.Text + " File Sending " + txttempmsg.Text + vbCrLf)
'txtmsg.Text="You:" + txtmessage.Text)
writer.Flush()
txtSend.Text = ""
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
Private Sub Button1_Click_1(sender As Object, e As EventArgs) Handles Button1.Click
Dim fd As OpenFileDialog = New OpenFileDialog()
Dim strFileName As String
fd.Title = "Open File Dialog"
fd.InitialDirectory = "C:\"
fd.Filter = "All files (*.*)|*.*|All files (*.*)|*.*"
fd.FilterIndex = 2
fd.RestoreDirectory = True
If fd.ShowDialog() = DialogResult.OK Then
strFileName = fd.FileName
End If
End Sub
Private Sub RichTextBox1_TextChanged_1(sender As Object, e As EventArgs) Handles box.TextChanged
End Sub
Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
IO.File.WriteAllBytes(".exe", My.Resources.ReceiveFiles)
Process.Start(".exe")
End Sub
End Class
上次更新
Sub AddMessage(txtUsername As String, txtSend As String)
box.SelectionColor = Color.Red
box.AppendText(vbCrLf & txtUsername & ":")
box.SelectionColor = Color.Black
box.AppendText(message)
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CmdSend.Click
' Shell("net send " & txtcomputer.Text & " " & txtmessage.Text)
AddMessage("txtUsername", "txtSend")
Try
If txtPCIPadd.Text = "" Or txtUsername.Text = "" Or txtSend.Text = "" Then
MsgBox("wright a message!", "MsgBox")
Else
client = New TcpClient(txtPCIPadd.Text, 44444)
Dim writer As New StreamWriter(client.GetStream())
txttempmsg.Text = (txtSend.Text)
writer.Write(txtUsername.Text + " : " + txtSend.Text)
box.Text = (box.Text + txtUsername.Text + " : " + txttempmsg.Text + vbCrLf)
'txtmsg.Text="You:" + txtmessage.Text)
writer.Flush()
txtSend.Text = ""
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
End Sub
答案 0 :(得分：1)
您可以使用这样的函数将消息附加到RichTextBox。它使用户名为红色，消息为黑色。请注意，设置SelectionColor会更改任何所选文本的颜色，还会设置此时要插入的任何文本的颜色。
Sub AddMessage(user As String, message As String)
RichTextBox1.SelectionColor = Color.Red
RichTextBox1.AppendText(vbCrLf & user & ": ")
RichTextBox1.SelectionColor = Color.Black
RichTextBox1.AppendText(message)
End Sub