Winform窗体初始化Combox控件并模糊查找内容

        #region 初始化设备信息
        /// <summary>
        /// 初始化设备信息
        /// </summary>
        private void InitVMSDevice()
        {

            DataTable dt = timsControl.GetVMSDeviceInfo();

            DataRow dr = dt.NewRow();
            dr["glid"] = "-1";
            dr["azdd"] = "请选择";
            dt.Rows.InsertAt(dr, 0);

            if (dt != null && dt.Rows.Count > 0)
            {
                this.cbxDevice.ValueMember = "glid";
                this.cbxDevice.DisplayMember = "azdd";
                this.cbxDevice.DataSource = dt;

                this.cbxHistoryDevice.ValueMember = "glid";
                this.cbxHistoryDevice.DisplayMember = "azdd";
                this.cbxHistoryDevice.DataSource = dt;
            }

            string[] arr = new string[dt.Rows.Count];
            for (int i = 0; i < arr.Length; i++)
            {
                arr[i] = dt.Rows[i][1].ToString();
            }

            cbxDevice.AutoCompleteCustomSource.AddRange(arr);
            cbxDevice.AutoCompleteSource = AutoCompleteSource.CustomSource;
            cbxDevice.AutoCompleteMode = AutoCompleteMode.SuggestAppend;

            cbxHistoryDevice.AutoCompleteCustomSource.AddRange(arr);
            cbxHistoryDevice.AutoCompleteSource = AutoCompleteSource.CustomSource;
            cbxHistoryDevice.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
        }

        #endregion

PS：只能从首字符开始模糊查找