如何在多行文本框中创建命令行

发布于 2024-12-12 03:03:01 字数 502 浏览 0 评论 0原文

我正在使用一些使用 GPIB 的电子仪器。我可以像这样与仪器进行通信：

K2400.WriteString("*IDN?", true);
textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;

第一行将执行命令，在第二行中我将最后一个命令的响应添加到文本框。如何直接在文本框中写入命令并添加响应？

例如，如果用户命令在“>>”等指示符之后输入然后按 ENTER 键，响应应添加到文本框的下一行。

那么如何读取文本框的最后一行并将响应添加到新行中呢？我正在寻找类似的方法：

private void Execute(string command)
{
  K2400.WriteString(command, true);
  textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;
}

原文

I am working with some electronics instruments using GPIB. I can communicate with instruments like this:

K2400.WriteString("*IDN?", true);
textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;

The first line will execute a command, and in the second line I add the response of the last command to the textbox. How can I write the command in the textbox directly and add the response?

For example, if the user command entered after an indicator like ">>" and hitting ENTER, the response should be added in the next line of textbox.

So how can I read the last line of a textbox and add the respone in a new line? I am looking for a method like:

private void Execute(string command)
{
  K2400.WriteString(command, true);
  textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;
}

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旧伤还要旧人安 2024-12-19 03:03:01

使用两个文本框（文本框和列表框可能更好），但使它们看起来像“一个”文本框。如果使用 WPF，它看起来会非常漂亮，并且至少可以采用 Windows 形式。

做了一个快速测试..

在此处输入图像描述

并使用文本框的 KeyPress 事件的代码：

    private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.Return)
        {
            listBox1.Items.Add(textBox1.Text);
            textBox1.Text = String.Empty;
            listBox1.SelectedIndex = listBox1.Items.Count - 1;
        }
    }

Use two Text boxes(textbox and a listbox might be better) but make them look as "one" textbox.. If using WPF it could look pretty nice and in Windows form possible at least.

Did a quick test..

enter image description here

And with this code for KeyPress event for the textbox:

    private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.Return)
        {
            listBox1.Items.Add(textBox1.Text);
            textBox1.Text = String.Empty;
            listBox1.SelectedIndex = listBox1.Items.Count - 1;
        }
    }

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可可 2024-12-19 03:03:01

你可以试试这个：

private void textBoxK2400_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Return)
    {
        string command = textBoxK2400.Text.Split('\n').LastOrDefault();
        if (!String.IsNullOrEmpty(command) && command.StartsWith(">>"))
        {
            K2400.WriteString(command.Substring(2), true);
            textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;
            textBoxK2400.Text += ">>"; // It's not necessary
        }
    }
}

You could try this:

private void textBoxK2400_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyCode == Keys.Return)
    {
        string command = textBoxK2400.Text.Split('\n').LastOrDefault();
        if (!String.IsNullOrEmpty(command) && command.StartsWith(">>"))
        {
            K2400.WriteString(command.Substring(2), true);
            textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;
            textBoxK2400.Text += ">>"; // It's not necessary
        }
    }
}

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埋情葬爱 2024-12-19 03:03:01

private void Execute(字符串命令) { K2400.WriteString(命令,
真的）; textBoxK2400.Text += K2400.ReadString() + Environment.NewLine;
}

这样。我只是建议“缓冲”文本的一部分，而不是全部，因为到最后它可能会很长。您可以将其拆分为前面的行并获取多行（即 10 行）。

并且不要忘记将字段设置为黑色，文本设置为绿色，当命令字段这样装饰时看起来更专业。

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迷荒 2024-12-19 03:03:01

首先我建议使用 RichTextBox。
要捕获 ENTER 您应该使用 KeyPress Event 。

private void richTextBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Enter)
            { 
                string LastLine = richTextBox1.Lines[richTextBox1.Lines.Length-2];
                if (LastLine.StartsWith(">>"))
                {
                    //here you can filter the LastLine
                    K2400.WriteString(LastLine, true);
                    richTextBox1.AppendText(K2400.ReadString() + Environment.NewLine);
                }
                else
                {
                    //here you can unwrite the last line
                    string[] totalLines = richTextBox1.Lines;
                    richTextBox1.Text = "";
                    for (int i = 0; i < totalLines.Length - 2; i++)
                    {
                        richTextBox1.AppendText(totalLines[i]+Environment.NewLine);
                    }
                    MessageBox.Show("That was not a valid command");
                }
            }
        }

Well first i would suggest a RichTextBox to use.
To capture ENTER you should use KeyPress Event .

private void richTextBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == (char)Keys.Enter)
            { 
                string LastLine = richTextBox1.Lines[richTextBox1.Lines.Length-2];
                if (LastLine.StartsWith(">>"))
                {
                    //here you can filter the LastLine
                    K2400.WriteString(LastLine, true);
                    richTextBox1.AppendText(K2400.ReadString() + Environment.NewLine);
                }
                else
                {
                    //here you can unwrite the last line
                    string[] totalLines = richTextBox1.Lines;
                    richTextBox1.Text = "";
                    for (int i = 0; i < totalLines.Length - 2; i++)
                    {
                        richTextBox1.AppendText(totalLines[i]+Environment.NewLine);
                    }
                    MessageBox.Show("That was not a valid command");
                }
            }
        }

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