在RichTextBox中輸出控制檯c＃WindowsForm

Question

我試圖在RichTextBox中進行控制檯輸出。這裏是我的代碼：

public void Run() 
{ 
    Process myProcess = new Process(); 
    myProcess.StartInfo.FileName = @"start.bat"; 
    myProcess.StartInfo.CreateNoWindow = true; 
    myProcess.StartInfo.UseShellExecute = false; 
    myProcess.StartInfo.RedirectStandardOutput = true; 
    myProcess.OutputDataReceived += proc_OutputDataReceived; 
    myProcess.Start(); 
    myProcess.BeginOutputReadLine(); 
} 

public void proc_OutputDataReceived(object sender, DataReceivedEventArgs e) 
{ 
    this.Invoke(new Action(() => 
    richTextBoxConsole.Text += (e.Data + Environment.NewLine))); 
} 

但是隻有控制檯的第一行顯示在RichTextBox中。有必要實時顯示所有行。錯誤在哪裏？

Answer 1

只需將控制檯設置爲新的TextBoxStreamWriter。應該做的伎倆。

public class TextBoxStreamWriter : TextWriter 
{ 
    private readonly RichTextBox richTextBox; 

    /// <summary> 
    /// Initializes a new instance of the <see cref="TextBoxStreamWriter"/> class. 
    /// </summary> 
    /// <param name="richTextBox">The richTextBox.</param> 
    public TextBoxStreamWriter(RichTextBox richTextBox) 
    { 
     this.richTextBox = richTextBox; 
    } 

    /// <summary> 
    /// Writes a character to the text stream. 
    /// </summary> 
    /// <param name="value">The character to write to the text stream.</param> 
    /// <exception cref="T:System.ObjectDisposedException">The <see cref="T:System.IO.TextWriter"/> is closed. </exception> 
    /// 
    /// <exception cref="T:System.IO.IOException">An I/O error occurs. </exception> 
    public override void Write(char value) 
    { 
     if (this.richTextBox.Parent.InvokeRequired) 
     { 
      Action<char> action = Write; 
      this.richTextBox.Parent.Invoke(action, value); 
     } 
     else 
     { 
      base.Write(value); 
      this.richTextBox.AppendText(value.ToString()); 
      this.richTextBox.ScrollToCaret(); 
     } 
    } 

    /// <summary> 
    /// Writes out a formatted string, using the same semantics as 
    /// <see cref="M:System.String.Format(System.String,System.Object)"/>. 
    /// </summary> 
    /// <param name="format">The formatting string.</param> 
    /// <param name="arg0">An object to write into the formatted string. 
    /// </param> 
    /// <exception cref="T:System.ArgumentNullException"> 
    /// <paramref name="format"/> is null. </exception> 
    /// 
    /// <exception cref="T:System.ObjectDisposedException">The 
    /// <see cref="T:System.IO.TextWriter"/> is closed. </exception> 
    /// 
    /// <exception cref="T:System.IO.IOException">An I/O error occurs. 
    /// </exception> 
    /// 
    /// <exception cref="T:System.FormatException">The format specification 
    /// in format is invalid.-or- The number indicating an argument to be 
    /// formatted is less than zero, or larger than or equal to the number 
    /// of provided objects to be formatted. </exception> 
    public override void Write(string format, object arg0) 
    { 
     if (this.richTextBox.Parent.InvokeRequired) 
     { 
      Action<string, object> action = Write; 
      this.richTextBox.Parent.Invoke(action, format, arg0); 
     } 
     else 
     { 
      base.Write(format, arg0); 
      this.richTextBox.AppendText(string.Format(format, arg0)); 
      this.richTextBox.ScrollToCaret(); 
     } 
    } 

    /// <summary> 
    /// When overridden in a derived class, returns the <see cref="T:System.Text.Encoding"/> in which the richTextBox is written. 
    /// </summary> 
    /// <returns>The Encoding in which the richTextBox is written.</returns> 
    public override Encoding Encoding 
    { 
     get { return Encoding.UTF8; } 
    } 
}