获取要在方法C#WinForms中使用的实际使用的GUI元素（comboBox）的名称

我有一个从组合框中删除特殊项的方法。 首先，组合框由数据库中的表名填充，然后我想删除列表中不需要的一些表名。 我通过同时填充和删除所有组合框的项目来实现这一点。但现在我只想要我实际使用的组合框，在下拉列表中填充和删除项目。所以我想我需要得到实际使用的组合框的名称，以便将其用作变量或类似的东西。我该怎么做

这是我到目前为止的代码。您可以看到，仅仅添加和删除组合框中的项目是非常漫长的

        //Load DB Tables when Drop Down the Dropboxes. And remove not used/needed tables from Combobox.
    private void referenzDropDown(object sender, EventArgs e)
    {
        string myInsertQuery = "SHOW TABLES";
        MySqlCommand myCommand = new MySqlCommand(myInsertQuery, myConnection);
        MySqlDataReader myReader;
        myReader = myCommand.ExecuteReader();
        comboBox18.Items.Clear();
        comboBox19.Items.Clear();
        comboBox20.Items.Clear();
        comboBox21.Items.Clear();
        comboBox22.Items.Clear();
        comboBox23.Items.Clear();
        comboBox24.Items.Clear();
        comboBox25.Items.Clear();
        comboBox26.Items.Clear();
        if (myReader.HasRows == true)
        {
            while (myReader.Read())
            {
                comboBox18.Items.Add((string)myReader[0]);
                comboBox19.Items.Add((string)myReader[0]);
                comboBox20.Items.Add((string)myReader[0]);
                comboBox21.Items.Add((string)myReader[0]);
                comboBox22.Items.Add((string)myReader[0]);
                comboBox23.Items.Add((string)myReader[0]);
                comboBox24.Items.Add((string)myReader[0]);
                comboBox25.Items.Add((string)myReader[0]);
                comboBox26.Items.Add((string)myReader[0]);
            }
            myReader.Close();
        }
        comboBox18.Items.Remove("referenzen");
        comboBox18.Items.Remove("waage1");
        comboBox18.Items.Remove("waage2");
        comboBox18.Items.Remove("waage3");
        comboBox18.Items.Remove("waage4");
        comboBox18.Items.Remove("waage5");
        comboBox18.Items.Remove("waage6");
        comboBox18.Items.Remove("waage7");
        comboBox18.Items.Remove("waage8");

        comboBox19.Items.Remove("referenzen");
        comboBox19.Items.Remove("waage1");
        comboBox19.Items.Remove("waage2");
        comboBox19.Items.Remove("waage3");
        comboBox19.Items.Remove("waage4");
        comboBox19.Items.Remove("waage5");
        comboBox19.Items.Remove("waage6");
        comboBox19.Items.Remove("waage7");
        comboBox19.Items.Remove("waage8");

        comboBox20.Items.Remove("referenzen");
        comboBox20.Items.Remove("waage1");
        comboBox20.Items.Remove("waage2");
        comboBox20.Items.Remove("waage3");
        comboBox20.Items.Remove("waage4");
        comboBox20.Items.Remove("waage5");
        comboBox20.Items.Remove("waage6");
        comboBox20.Items.Remove("waage7");
        comboBox20.Items.Remove("waage8");

        comboBox21.Items.Remove("referenzen");
        comboBox21.Items.Remove("waage1");
        comboBox21.Items.Remove("waage2");
        comboBox21.Items.Remove("waage3");
        comboBox21.Items.Remove("waage4");
        comboBox21.Items.Remove("waage5");
        comboBox21.Items.Remove("waage6");
        comboBox21.Items.Remove("waage7");
        comboBox21.Items.Remove("waage8");

        comboBox22.Items.Remove("referenzen");
        comboBox22.Items.Remove("waage1");
        comboBox22.Items.Remove("waage2");
        comboBox22.Items.Remove("waage3");
        comboBox22.Items.Remove("waage4");
        comboBox22.Items.Remove("waage5");
        comboBox22.Items.Remove("waage6");
        comboBox22.Items.Remove("waage7");
        comboBox22.Items.Remove("waage8");

        comboBox23.Items.Remove("referenzen");
        comboBox23.Items.Remove("waage1");
        comboBox23.Items.Remove("waage2");
        comboBox23.Items.Remove("waage3");
        comboBox23.Items.Remove("waage4");
        comboBox23.Items.Remove("waage5");
        comboBox23.Items.Remove("waage6");
        comboBox23.Items.Remove("waage7");
        comboBox23.Items.Remove("waage8");

        comboBox24.Items.Remove("referenzen");
        comboBox24.Items.Remove("waage1");
        comboBox24.Items.Remove("waage2");
        comboBox24.Items.Remove("waage3");
        comboBox24.Items.Remove("waage4");
        comboBox24.Items.Remove("waage5");
        comboBox24.Items.Remove("waage6");
        comboBox24.Items.Remove("waage7");
        comboBox24.Items.Remove("waage8");

        comboBox25.Items.Remove("referenzen");
        comboBox25.Items.Remove("waage1");
        comboBox25.Items.Remove("waage2");
        comboBox25.Items.Remove("waage3");
        comboBox25.Items.Remove("waage4");
        comboBox25.Items.Remove("waage5");
        comboBox25.Items.Remove("waage6");
        comboBox25.Items.Remove("waage7");
        comboBox25.Items.Remove("waage8");

        comboBox26.Items.Remove("referenzen");
        comboBox26.Items.Remove("waage1");
        comboBox26.Items.Remove("waage2");
        comboBox26.Items.Remove("waage3");
        comboBox26.Items.Remove("waage4");
        comboBox26.Items.Remove("waage5");
        comboBox26.Items.Remove("waage6");
        comboBox26.Items.Remove("waage7");
        comboBox26.Items.Remove("waage8");


    }

我认为应该是（伪代码）：

有人能告诉我怎样才能做到最好吗？

---

谢谢大家!

事件处理程序的

sender

参数是已使用的组合框。您只需将其解析为组合框：

private void referenzDropDown(object sender, EventArgs e)
{
    string myInsertQuery = "SHOW TABLES";
    MySqlCommand myCommand = new MySqlCommand(myInsertQuery, myConnection);
    MySqlDataReader myReader;
    myReader = myCommand.ExecuteReader();

    // the "sender" is the control raising this event
    // parse it to ComboBox
    ComboBox actualSelectedComboBox = (ComboBox)sender;

    actualSelectedComboBox.Items.Clear();
    // ...

---

每个UI元素都应该有相关的

标记

属性。对于那个特定的组合，您可能会分配一些特殊的东西给您，这在语义上是有意义的。在那之后，找到它只是一个查询问题：

form.Controls.Where（c=>c.Tag！=null&&c.Tag.ToString（）=“您的密钥”）作为组合框！这对我有帮助！
private void referenzDropDown(object sender, EventArgs e)
{
    string myInsertQuery = "SHOW TABLES";
    MySqlCommand myCommand = new MySqlCommand(myInsertQuery, myConnection);
    MySqlDataReader myReader;
    myReader = myCommand.ExecuteReader();

    // the "sender" is the control raising this event
    // parse it to ComboBox
    ComboBox actualSelectedComboBox = (ComboBox)sender;

    actualSelectedComboBox.Items.Clear();
    // ...