从我的主窗体中,我调用以下命令来打开一个新窗体
MyForm sth = new MyForm();
sth.show();
一切都很好,但是这个表单有一个组合框,当我将其 AutoCompleteMode 切换为建议和追加时,我在显示表单时遇到了这个异常:
在进行 OLE 调用之前,当前线程必须设置为单线程单元 (STA) 模式。确保您的 Main 函数上标记有 STAThreadAttribute。
我已按照异常的要求在我的主函数上设置了此属性:
[STAThread]
static void Main(string[] args)
{ ...
我可以寻求一些帮助来了解可能出了什么问题吗?
示例代码:
private void mainFormButtonCLick (object sender, EventArgs e)
{
// System.Threading.Thread.CurrentThread.SetApartmentState(ApartmentState.STA); ?
MyForm form = new MyForm();
form.show();
}
设计师:
this.myCombo.AutoCompleteMode = System.Windows.Forms.AutoCompleteMode.Suggest;
this.myCombo.AutoCompleteSource = System.Windows.Forms.AutoCompleteSource.ListItems;
this.myCombo.FormattingEnabled = true;
this.myCombo.Location = new System.Drawing.Point(20, 12);
this.myCombo.Margin = new System.Windows.Forms.Padding(4, 5, 4, 5);
this.myCombo.Name = "myCombo";
this.myCombo.Size = new System.Drawing.Size(430, 28);
this.myCombo.Sorted = true;
this.myCombo.TabIndex = 0; phrase";
设置数据源
public MyForm(List<string> elem)
{
InitializeComponent();
populateColorsComboBox();
PopulateComboBox(elem);
}
public void PopulateComboBox(List<string> list )
{
this.myCombo.DataSource = null;
this.myCombo.DisplayMember = "text";
this.myCombo.DataSource = list;
}