2013-04-02 115 views
0

當我輸入第一個文本框時,它應該運行一個出現在第二個文本框中的轉換,而當我輸入第二個文本框時,它將出現在第一個文本框中。但是,當我輸入第一個textchanged事件時,會觸發第二個,這會打亂第一個輸入,反之亦然。有什麼辦法可以禁用觸發textchanged突出顯示或事件?Winforms C#中的兩個同時發生的Textchanged事件觸發#

public void dB10_TextChanged(object sender, EventArgs e) 
    { 
     TextBox dB10 = sender as TextBox; 
     double dBV; 
     int i = dB10.Text.Trim().Length; 

     if (i > 0) 
     { 
      dBV = Convert.ToDouble(dB10.Text); 
     } 
     else 
      return; 

     UnitConverter dBConverter = new UnitConverter(); 

     // Controls for if various radiobuttons were clicked 
     if (dBVRadio.Checked == true) 
     { 
      dBV = dBConverter.dBVToVolts(dBV); 
      voltage.Text = dBV.ToString(); 
     } 

     else if (dBuRadio.Checked == true) 
     { 
      dBV = dBConverter.dBuToVolts(dBV); 
      voltage.Text = dBV.ToString(); 
     } 
    } 

    public void voltage_TextChanged(object sender, EventArgs e) 
    { 
     TextBox voltage = sender as TextBox; //V >> dB10 (dBV/dBu) 

     int i = voltage.Text.Trim().Length; 
     double volts; 

     if (i > 0) 
     { 
      volts = Convert.ToDouble(voltage.Text); 
     } 
     else 
      return; 

     UnitConverter dBConverter = new UnitConverter(); 

      if (dBVRadio.Checked == true) 
      { 
       dBuRadio.Checked = false; 

       volts = dBConverter.voltsTodBV(volts); 
       dB10.Text = volts.ToString(); 
      } 

      else if (dBuRadio.Checked == true) 
      { 
       volts = dBConverter.voltsTodBu(volts); 
       dB10.Text = volts.ToString(); 
      } 
    } 
+0

去一些標誌或者有一些事件類似的keyPressed/keyentered,因爲textchange不會在這裏工作我猜,因爲每當文本改變時testchange都會繼續執行 –

回答

0

你可以刪除另一個文本框的處理程序,然後將其添加

public void dB10_TextChanged(object sender, EventArgs e) 
{ 
    voltage.TextChanged-= voltage_TextChanged; 
    TextBox dB10 = sender as TextBox; 
    double dBV; 
    int i = dB10.Text.Trim().Length; 

    if (i > 0) 
    { 
     dBV = Convert.ToDouble(dB10.Text); 
    } 
    else 
     return; 

    UnitConverter dBConverter = new UnitConverter(); 

    // Controls for if various radiobuttons were clicked 
    if (dBVRadio.Checked == true) 
    { 
     dBV = dBConverter.dBVToVolts(dBV); 

    } 

    else if (dBuRadio.Checked == true) 
    { 
     dBV = dBConverter.dBuToVolts(dBV); 

    } 
    voltage.Text = dBV.ToString(); 
    voltage.TextChanged+= voltage_TextChanged; 


} 
0

您可以只使用一個bool變量:

bool escape = false; 

public void dB10_TextChanged(object sender, EventArgs e) 
{ 
    if(escape) 
     return; 

    escape = true; 
    // your code 
    escape = false; 
} 

public void voltage_TextChanged(object sender, EventArgs e) 
{ 
    if(escape) 
     return; 

    escape = true; 
    // your code 
    escape = false; 
} 
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