C# 用户控件与窗体之间传值

用户自定义控件

 public partial class GirdViewUserControl : DevExpress.XtraEditors.XtraUserControl
    {

        public event EventHandler MyKeyDown;
        public event EventHandler MyDoubleClick;
        public GirdViewUserControl()
        {
            InitializeComponent();
            MyGridView.AttributeConfig(this.gridControl1, this.gridView1);
            this.gridView1.KeyDown += gridView1_KeyDown;
            this.gridView1.DoubleClick += gridView1_DoubleClick;
        }

        void gridView1_DoubleClick(object sender, EventArgs e)
        {
            if (MyDoubleClick != null)
            {
                DataRow row = this.gridView1.GetFocusedDataRow();
                if (row != null)
                {
                    MyDoubleClick(row, e);
                }
                else
                {
                    MyDoubleClick(null, e);
                }
            }
        }

     

        void gridView1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                if (MyKeyDown != null)
                {
                    DataRow row = this.gridView1.GetFocusedDataRow();
                    if (row != null)
                    {
                        MyKeyDown(row, e);
                    }
                    else
                    {
                        MyKeyDown(null, e);
                    }
                }
            }
        }

      

        /// <summary>
        /// 返回GridControl对象
        /// </summary>
        public GridControl MMCGridControl { get { return this.gridControl1; } }

        /// <summary>
        /// 返回用户选择行索引 int[]
        /// </summary>
        public int[] GetSelectIndex { get { return this.gridView1.GetSelectedRows(); } }


        /// <summary>
        /// 返回用户选择所有行，List
        /// </summary>
        /// <returns>DataRow</returns>
        public List<DataRow> GetDataRow() {
            List<DataRow> List = new List<DataRow>();
            foreach (int arr in GetSelectIndex)
            {
                List.Add(this.gridView1.GetDataRow(arr));
            }
            return List;
        }
    }

窗体

 readonly GridControl gconList = null;

 gconList = this.girdViewUserControl1.MMCGridControl;


            this.girdViewUserControl1.MyKeyDown += girdViewUserControl1_OnKeyDown;
            this.girdViewUserControl1.MyDoubleClick += new EventHandler(girdViewUserControl1_MyDoubleClick);

    void girdViewUserControl1_OnKeyDown(object sender, EventArgs e)
        {
            if(sender!=null)
            {
                DataRow dr = sender as DataRow;
                if(dr!=null)
                {
                    XtraMessageBox.Show(dr["jobtitle"].ToString(), "显示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
            }
        }

        void girdViewUserControl1_MyDoubleClick(object sender, EventArgs e)
        {
            if (sender != null)
            {
                DataRow dr = sender as DataRow;
                if (dr != null)
                {
                    XtraMessageBox.Show(dr[1].ToString(), "显示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
            } 
        }

        private void button1_Click(object sender, EventArgs e)
        {
            List<DataRow> list = this.girdViewUserControl1.GetDataRow();
            System.Text.StringBuilder strbui = new System.Text.StringBuilder();
            foreach (DataRow dr in list)
            {
                strbui.AppendFormat(",{0}", dr[2]);
            }
            XtraMessageBox.Show(strbui.ToString().Substring(1), "显示信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }