C#textbox问题
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为什么我在网页上 无论怎么改文本里面的值 在断点里看到获取到textbox里面的值还是数据库原来的值 然后一直不能修改
是因为 我写了TextBox6.Text = user.CUtel.ToString();这句 然后一按修改按钮 它自动刷新变成原来的值吗？
2）在Form1.cs中添加一个类TextUndoBuffer。代码如下：
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;namespace WindowsFormsApplication1 public partial class Form1 : Form public Form1() InitializeComponent(); TextUndoBuffer buffer; private void Form1_Load(object sender, EventArgs e) buffer = new TextUndoBuffer(); private void textBox1_KeyDown(object sender, KeyEventArgs e) //按下Ctrl+z，取消最近一次输入的内容 if (e.KeyCode == Keys.Z && e.Modifiers == Keys.Control) buffer.Undo(); textBox1.Text = buffer.GetAll(); private void textBox2_KeyPress(object sender, KeyPressEventArgs e) if (e.KeyChar == (char)Keys.Return) string s = textBox2.Text.Trim(); if (s != string.Empty) buffer.PutInBuffer(" " + textBox2.Text.Trim()); textBox2.Clear(); textBox1.Text = buffer.GetAll(); /// <summary> /// 这个类用来记录输入的内容并支持Undo /// </summary> class TextUndoBuffer List<string> buffer; public TextUndoBuffer() this.buffer = new List<string>(); /// <summary> /// 将输入的一句话放入缓冲区 /// </summary> /// <param name="s"></param> public void PutInBuffer(string s) this.buffer.Add(s); /// <summary> /// 从缓冲区获取所有输入的内容 /// </summary> /// <returns></returns> public string GetAll() string s = string.Empty; foreach (var q in this.buffer) s += q; return s; /// <summary> /// Undos实现取消最近一次输入的内容 /// </summary> public void Undo() if (this.buffer.Count == 0) return; buffer.RemoveAt(this.buffer.Count - 1); 3）事件处理
注意：textBox1和textBox2“共用”了同一个KeyDown事件处理函数，详细见上面代码本回答被提问者采纳
C# Visual Studio 2012 语音到 textBox1
【中文标题】C# Visual Studio 2012 语音到 textBox1【英文标题】：C# Visual Studio 2012 Speech to textBox1 【发布时间】：2014-05-29 19:21:05 【问题描述】：我遇到了语音 API 的问题。我正在使用命令，这很好，但是当我希望在 textBox1 中看到语音时，它不会显示它。
这是我需要帮助的代码。我正在使用开关盒。我尝试了几个 if 语句，但没有一个有效。
case "listen":
AI.Speak("I am listening");
textBox1.Text = textBox1.Text + " " + e.Result.Text.ToString();
break;
每次我说听时，文本框中只有“听”可见
这里是完整的代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;
using System.Windows.Forms;
using System.Speech.Recognition;
using System.Speech.Synthesis;
using System.IO;
using System.Xml;
using System.Web;
using WindowsMicrophoneMuteLibrary;
using TweetSharp;
/*
*
*
*
*
*
*/
namespace Test
public partial class Form1 : Form
SpeechRecognitionEngine sRecognizer = new SpeechRecognitionEngine();
SpeechSynthesizer AI = new SpeechSynthesizer();
DateTime now = DateTime.Now;
Random rnd = new Random();
WindowsMicMute micMute = new WindowsMicMute();
TwitterService twitter = new TwitterService("--", "--", "--", "--");
//string QEvent;
//string ProcWindow;
//double timer = 10;
//int count = 1;
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
sRecognizer.SetInputToDefaultAudioDevice();
sRecognizer.LoadGrammar(new Grammar(new GrammarBuilder(new Choices(File.ReadAllLines(@"D:\Bibliotheek\Mijn Documenten\Commands.txt")))));
sRecognizer.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(rSpeechRecognized);
sRecognizer.RecognizeAsync(RecognizeMode.Multiple);
// LAAD COMMANDS BIJ START-UP
string[] commands = (File.ReadAllLines(@"D:\Bibliotheek\Mijn Documenten\Commands.txt"));
lstCommands.Items.Clear();
lstCommands.SelectionMode = SelectionMode.None;
foreach (string command in commands)
lstCommands.Items.Add(command);
void rSpeechRecognized(object sender, SpeechRecognizedEventArgs e)
int ranNum = rnd.Next(1, 10);
string speech = e.Result.Text;
switch (speech)
// GROETEN
case "hello": // ALS "hello" WORDT INGESPROKEN IN DE MICROFOON
if (ranNum <= 3)
AI.Speak("Hello Sir"); // ALS RANDOM NUMMER < 5 IS = "hello sir"
else if (ranNum >= 4 && ranNum <= 6)
AI.Speak("Greetings"); // ALS RANDOM NUMMER >= 5 IS = "greetings"
else if (ranNum >= 7)
AI.Speak("Good day to you");
break;
case "AI": // ALS "AI" WORDT INGESPROKEN IN DE MICROFOON
if (ranNum <= 4)
AI.Speak("Yes Sir"); // ALS RANDOM NUMMER < 5 IS = "yes sir"
else if (ranNum >= 5)
AI.Speak("Yes?"); // ALS RANDOM NUMMER >= 5 IS = "yes?"
break;
// SLUIT
case "exit program": // ALS "exit program" WORDT INGESPROKEN IN DE MICROFOON
AI.Speak("Until next time");
this.Close(); // APPLICATIE WORDT GESLOTEN
break;
// WEBSITES
case "open google": // ALS "open google" WORDT INGESPROKEN IN DE MICROFOON
System.Diagnostics.Process.Start("http://www.google.nl"); // GOOGLE WORDT GEOPEND
break;
case "open youtube": // ALS "open youtube" WORDT INGESPROKEN IN DE MICROFOON
System.Diagnostics.Process.Start("https://www.youtube.com/feed/subscriptions"); // YOUTUBE WORDT GEOPEND
break;
case "open tweakers": // ALS "tweakers" WORDT INGESPROKEN IN DE MICROFOON
System.Diagnostics.Process.Start("http://tweakers.net/"); // TWEAKERS WORDT GEOPEND
break;
// PROGRAMMA'S
case "run guild wars": // ALS "run guild wars" WORDT INGESPROKEN IN DE MICROFOON
System.Diagnostics.Process.Start("D:\\Entertainment\\Guild Wars 2\\Gw2.exe"); // GUILD WARS 2 WORDT GEOPEND
AI.Speak("Loading program");
break;
// GEGEVENS VAN DE DAG
case "whats the time": // ALS "what time is it" WORDT INGESPROKEN IN DE MICROFOON
AI.Speak(DateTime.Now.ToString("HH:mm")); // TIJD VAN DE DAG WORDT VERTELD
break;
case "whats the day": // ALS "what day is it" WORDT INGESPROKEN IN DE MICROFOON
AI.Speak(DateTime.Today.ToString("dddd")); // DAG VAN VANDAAG WORDT VERTELD
break;
case "whats the date": // ALS "whats the date" WORDT INGESPROKEN IN DE MICROFOON
AI.Speak(DateTime.Today.ToString("dd-MMM-yyyy")); // DATUM VAN VANDAAG WORDT VERTELD
break;
// ANDERE COMMANDS
case "go fullscreen": // ALS "go fullscreen" WORDT INGESPROKEN IN DE MICROFOON
FormBorderStyle = FormBorderStyle.None;
WindowState = FormWindowState.Maximized;
TopMost = true;
AI.Speak("Going into fullscreen mode");
break;
case "exit fullscreen": // ALS "exit fullscreen" WORDT INGESPROKEN IN DE MICROFOON
FormBorderStyle = FormBorderStyle.Sizable;
WindowState = FormWindowState.Normal;
TopMost = false;
AI.Speak("Exiting fullscreen mode");
break;
// TWITTER
case "post on twitter":
if (listBox1.Visible == true)
this.textBox1.Location = new System.Drawing.Point(89, 163);
this.label1.Location = new System.Drawing.Point(18, 166);
textBox1.Visible = true;
label1.Visible = true;
break;
case "post":
if (textBox1.Visible == false)
AI.Speak("say post on twitter first");
else if (String.IsNullOrEmpty(textBox1.Text.Trim()))
AI.Speak("you will have to write down something");
else
twitter.SendTweet(new SendTweetOptions() Status = textBox1.Text );
AI.Speak("Your tweet has been posted");
textBox1.Clear();
break;
case "clear post":
textBox1.Visible = false;
label1.Visible = false;
break;
case "show tweets":
listBox1.Visible = true;
label2.Visible = true;
if (textBox1.Visible == true)
this.textBox1.Location = new System.Drawing.Point(89, 163);
this.label1.Location = new System.Drawing.Point(18, 166);
listBox1.Visible = true;
label2.Visible = true;
listBox1.Items.Clear();
var getTweets = twitter.ListTweetsOnHomeTimeline(new ListTweetsOnHomeTimelineOptions() Count = 10 );
foreach (var tweets in getTweets)
listBox1.Items.Add(tweets.Text);
break;
case "clear tweets":
listBox1.Visible = false;
label2.Visible = false;
this.textBox1.Location = new System.Drawing.Point(89, 9);
this.label1.Location = new System.Drawing.Point(18, 12);
break;
case "update tweets":
if (listBox1.Visible == false)
AI.Speak("I cant update without getting the tweets first");
else
listBox1.Items.Clear();
var update = twitter.ListTweetsOnHomeTimeline(new ListTweetsOnHomeTimelineOptions() Count = 10 );
foreach (var tweets in update)
listBox1.Items.Add(tweets.Text);
break;
**case "listen":
AI.Speak("I am listening");
textBox1.Text = textBox1.Text + " " + e.Result.Text.ToString();
break;**
/*
case "show commands":
string[] commands = (File.ReadAllLines(@"D:\Bibliotheek\Mijn Documenten\Commands.txt"));
JARVIS.Speak("Very well");
lstCommands.Items.Clear();
lstCommands.SelectionMode = SelectionMode.None;
lstCommands.Visible = true;
foreach (string command in commands)
lstCommands.Items.Add(command);
break;
case "hide commands":
lstCommands.Visible = false;
break;
*/
private void lstCommands_SelectedIndexChanged(object sender, EventArgs e)
private void btnMic_Click(object sender, EventArgs e)
if (btnMic.Text == "Mute")
btnMic.Text = "Unmute";
micMute.MuteMic();
AI.Speak("Muted");
else if (btnMic.Text == "Unmute")
btnMic.Text = "Mute";
micMute.UnMuteMic();
AI.Speak("Unmuted");
编辑：
我需要有关这段代码的帮助：
case "listen":
AI.Speak("I am listening");
textBox1.Text = textBox1.Text + " " + e.Result.Text.ToString();
break;
当我说“听”时，AI 会跟着“我在听”。之后，它应该将文本即时消息放入 textbox1 中的麦克风中，但它没有。它只在其中放置“听”。
其他一切正常！
【问题讨论】：
那是很多代码。请将您的问题编辑成一个简洁的问题示例。e.Result.Text.ToString() 不是已经设置好了，你需要调用一些东西来捕捉语音吗？
【参考方案1】：
case "listen":
AI.Speak("I am listening");
textBox1.Text = textBox1.Text + " " + e.Result.Text.ToString();
break;
e.Result 将仅包含用户说“听”时获得的结果。
在你让 AI 说“我在听”之后，你实际上需要再次倾听用户。
case "listen":
AI.Speak("I am listening");
var result = sRecognizer.Recognize();
textBox1.Text += " " + result.Text;
break;
【讨论】：
我现在收到此错误：在识别器进行识别时无法执行此操作。所以当我说听的时候识别器已经激活了，这是否意味着我不需要再次调用它，对吧。 那是因为你还没有处理完当前的语音("Listen")。你将不得不改变程序的流程来解决这个问题。您可以保存最后一个语音命令，如果最后一个语音命令是“听”，则继续将当前结果写入文本框。或者根据需要中断当前流程并使用无限循环来托管主要流程和分支。【参考方案2】：你说“听”的速度有多快？ 我怀疑你的问题是语音 API 只是在寻找第一个“Listen”，然后在你再次说“Listen”时它正忙于解析数据。我相信另一个答案正确地解决了这个问题 - 一旦你认识到语音文本，您必须再次调用识别。
试着放慢语速，或者说听（等待命令解析）然后再听。它是否按预期工作？
您可能想调查using asych methods
[编辑] 更改描述后，试试这个：
textBox1.Text = textBox1.Text + " " + speech;
【讨论】：
不管我做什么，我都会得到： 识别器进行识别时无法执行此操作；当我在那里放一个 var 时。以上是关于C#textbox问题的主要内容，如果未能解决你的问题，请参考以下文章