C＃按名称在ComboBox中获取SelectedIndex

Question

我必须按名称处理一些控件

this.Controls.Find(String.Format("lbl{0}", index),
            true)[0].Text = data[i].ToString();

但是当我尝试按名称获取Combobox时，它无法显示SelectedIndex属性

this.Controls.Find(String.Format("cmbDat{0}", index), true)[0].

我可以做什么？

Answer 1

您需要将其投放到ComboBox，因为Find()会返回Control，但不包含SelectedIndex属性。

请改为尝试：

ComboBox theComboBox = this.Controls.Find(String.Format("cmbDat{0}", index), true) as ComboBox;

// Verify the combo box was found before trying to use it
if(theComboBox != null)
{
    // Do whatever you want with the combo box here
    theComboBox.SelectedIndex = ???
    theComboBox.Text = ???
}