如何添加（追加）一個單詞到同一個句子，每個單詞使用一個按鈕（單擊）

我非常感謝任何幫助。我有20多個按鈕，每個按鈕都有一個詞，或者一個空格或句點。每次我點擊一個按鈕時，預先存在的單詞將被刪除並替換爲新單詞。我需要每個單詞和/或空間留在原地，直到我點擊「清除」按鈕。如何添加（追加）一個單詞到同一個句子，每個單詞使用一個按鈕（單擊）

也許這是以前在不同的搜索條件下提出的問題？我傾向於認爲我需要確定一個字符串變量，但不知道如何開始。

==============

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 frmSentenceBuilder : Form 
    { 
     public frmSentenceBuilder() 
     { 
      InitializeComponent(); 
     } 

     private void frmSentenceBuilder_Load(object sender, EventArgs e) 
     { 

     } 

     private void btnA_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnA.Text; 
     } 

     private void btn_a_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btn_a.Text; 
     } 

     private void btnAn_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnAn.Text; 
     } 

     private void btn_an_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btn_an.Text; 
     } 

     private void btnThe_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnThe.Text; 
     } 

     private void btn_the_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btn_the.Text; 
     } 

     private void btnman_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnman.Text; 
     } 

     private void btnwoman_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnwoman.Text; 
     } 

     private void btndog_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btndog.Text; 
     } 

     private void btncat_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btncat.Text; 
     } 

     private void btncar_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btncar.Text; 
     } 

     private void btnbicycle_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnbicycle.Text; 
     } 

     private void btnbeautiful_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnbeautiful.Text; 
     } 

     private void btnbig_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnbig.Text; 
     } 

     private void btnsmall_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnsmall.Text; 
     } 

     private void btnstrange_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnstrange.Text; 
     } 

     private void btnlookedat_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnlookedat.Text; 
     } 

     private void btnrode_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnrode.Text; 
     } 

     private void btnspoketo_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnspoketo.Text; 
     } 

     private void btnlaughedat_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnlaughedat.Text; 
     } 

     private void btndrove_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btndrove.Text; 
     } 

     private void btnSpace_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = " "; 
     } 

     private void btnperiod_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnperiod.Text; 
     } 

     private void btnexclam_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = btnexclam.Text; 
     } 

     private void btnClear_Click(object sender, EventArgs e) 
     { 
      lblSentenceText.Text = ""; 
     } 

     private void btnExit_Click(object sender, EventArgs e) 
     { 
      this.Close(); 
     } 
    } 
}

來源

2013-02-12 Brian Talbot

使用lb1SentenceText.Text+=whatever.Text;。

+ =相當於lbSentence.Text = lblSentenceText.Text + whatever.Text。

基本上，它將右側string附加或連接到左側的string。希望它是有道理的？

所以：

string rhs="Hello " ; 
string lhs = "World"; 
string rhs = rhs + lhs;//Hello World

來源

2013-02-12 21:08:44

點擊按鈕的事件，將其更改爲+=，而不是=（除清除按鈕）。這相當於寫作something = something + newValue;。

來源

2013-02-12 21:11:49

哇！像+ =這麼簡單？ ..但對我來說似乎如此困難。非常感謝。我確信所有這些反應都是有道理的，我會在接下來的幾天裏對它們進行研究。我整天搜索使用這麼多搜索詞組合，但沒有像這樣！我剛剛開始使用C＃，因此將努力盡量減少代碼，因爲我學習。我開始想象我肯定需要引入一個字符串變量，但不是。謝謝！謝謝！ – 2013-02-12 22:11:28

請大家鼓舞。你有一個多餘的代碼。

btnA.Click += AppendButtonText; 
    btn_a.Click += AppendButtonText; 
    ... 


    private void AppendButtonText(object sender, EventArgs e) 
    { 
     var button = sender as Button; 
     if (button != null) 
     { 
      lblSentenceText.Text += button.Text; 
     } 
    }

來源

2013-02-12 21:14:27

是的，我被告知「現在不用擔心太多的代碼......只是學習過程......」參加我的第一個C＃課程。非常感謝！ – 2013-02-12 22:17:25

嘗試：

lb1SentenceText.Text = lb1SentenceText.Text + *something*.text

+ =操作符是指添加到，和經修飾的可變等於加入（中間體，字符串）附加到原始值（X = 1; X + = 3; X是現在4）

嘗試這種情況：

button.Click += new System.EventHandler(ButtonClick); 
button1.Click += new System.EventHandler(ButtonClick); 
// And for each button, one of those. 
private void ButtonClick(object sender, System.EventArgs e) 
{ 
// Do whatever you want to do here, you can place the TEXT to be appended on the button, if so: 
lb1SentenceText.Text += sender.Text; 
}

來源

2013-02-12 21:18:12 Whippet

//Simple.Create a global variable and within each button click event do this; 

string yourStrVar = ""; //Must be global 

yourStrVar+= ((Button)sender).Text

來源

2013-02-12 21:33:25

如何添加（追加）一個單詞到同一個句子，每個單詞使用一個按鈕（單擊）

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