不能趕上TAB使用keyUp

Question

我試圖趕上TAB鍵的事件，但忽略了最低的工作，我嘗試使用此代碼，但還是沒有結果，wath應該怎麼做：

protected override bool IsInputKey(Keys keyData) 
    { 
     if (keyData == Keys.Tab) 
      return true; 
     return base.IsInputKey(keyData); 
    } 

請求幫助！ 謝謝！

我試圖做到這一點：

 private void comboBox1_KeyUp(object sender, KeyEventArgs e) 
    { 
     if (e.KeyCode == Keys.Enter || e.KeyCode == Keys.Tab) 
     { 
      try 
      { 
       DataView dv = glObalDataSet.Tables["JOBURI"].DefaultView; 
       dv.RowFilter = "CONT = '" + comboBox1.SelectedValue.ToString() + "'"; 
       comboBox2.DataSource = LoadDataTable(dv); 
       comboBox2.DisplayMember = "JOB"; 

       comboBox2.AutoCompleteCustomSource = LoadAutoComplete("JOB", dv); 
       comboBox2.AutoCompleteMode = AutoCompleteMode.SuggestAppend; 
       comboBox2.AutoCompleteSource = AutoCompleteSource.CustomSource; 
      } 
      catch (Exception ex) 
      { 
       MessageBox.Show(ex.Message); 
      } 
     } 
    } 

Answer 1

嘗試使用一個消息過濾器：

我不知道我用正確的密鑰選項卡在這裏，試圖找到合適的人在這裏：http://www.woodmann.com/fravia/sources/WINUSER.H

// Add IMessageFilter to the form 
public partial class Form1 : Form, IMessageFilter 

    public bool PreFilterMessage(ref Message m) 
    { 
     if (m.Msg == 0x0100) 
      { 
     { 
      DataView dv = glObalDataSet.Tables["JOBURI"].DefaultView; 
      dv.RowFilter = "CONT = '" + comboBox1.SelectedValue.ToString() + "'"; 
      comboBox2.DataSource = LoadDataTable(dv); 
      comboBox2.DisplayMember = "JOB"; 

      comboBox2.AutoCompleteCustomSource = LoadAutoComplete("JOB", dv); 
      comboBox2.AutoCompleteMode = AutoCompleteMode.SuggestAppend; 
      comboBox2.AutoCompleteSource = AutoCompleteSource.CustomSource; 
     } 
     catch (Exception ex) 
     { 
      MessageBox.Show(ex.Message); 
     } 
       return true; 
      } 
     return false; 
    } 

編輯：我認爲正確的關鍵是0100