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我在Csharp 中添加這句語句總是報(bào)錯    this.Controls.Add(this.axActUtlType);  
網(wǎng)上時(shí)候     this.Controls.Add(this.axActUtlType); //貌似這個(gè)控件必須要加到Controls中，不然就會引發(fā)異常。 怎么將控件添加加到Controls中了

public partial class Form1 : Form
    {
        private AxActUtlTypeLib.AxActUtlType axActUtlType = null;
        public Form1()
        {
            InitializeComponent();
            this.axActUtlType = new AxActUtlTypeLib.AxActUtlType();
            // ((System.ComponentModel.ISupportInitialize)(this.axActUtlType)).BeginInit();
           this.Controls.Add(this.axActUtlType);       //貌似這個(gè)控件必須要加到Controls中，不然就會引發(fā)異常。
        }

        private void butconn_Click(object sender, EventArgs e)
        {
            try
            {
                int iStation = Convert.ToInt32(this.txtStationNo.Text.Trim());
                this.axActUtlType.ActLogicalStationNumber = iStation;
                this.axActUtlType.ActPassword = this.txtPassword.Text.Trim();
                int rtn = this.axActUtlType.Open();
                if (rtn == 0)
                {
                   MessageBox.Show("連接成功！");
                  
                }
                else
                {
                    MessageBox.Show("連接失敗");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("未知錯誤");
            }


也不知道那錯了請師傅們指點(diǎn)

using引入相關(guān)dll？