C#最简单的关闭子窗体更新父窗体

主窗体Form1关键代码：

将子窗体最为对话框模式弹出，当窗体关闭或取消时更新主窗体

 private void simpleButton1_Click(object sender, EventArgs e)

        {

            Form2 f2 = new Form2();

            f2.Owner = this;

            DialogResult result=f2.ShowDialog();

            if (result == DialogResult.Cancel)

            {

                this.gridControl1.DataSource = f2.CreateTable();

            }

        }

子窗体

 private void simpleButton1_Click(object sender, EventArgs e)

        {

            this.Close();

        }



        public DataTable CreateTable()

        {

            DataTable tableA1 = new DataTable();

            tableA1.Columns.AddRange(new DataColumn[] { new DataColumn("名称"), new DataColumn("规格"), new DataColumn("单号"), new DataColumn("数量") });

            tableA1.Rows.Add(new object[] { "螺旋", "LS-X", "111", "2" });

            tableA1.Rows.Add(new object[] { "螺旋", "LS-X", "222", "1" });

            tableA1.Rows.Add(new object[] { "指针", "LX-3", "523", "2" });

            tableA1.Rows.Add(new object[] { "其他", "L-1", "666", "2" });

            tableA1.Rows.Add(new object[] { "其他", "L-1", "456", "1" });

            tableA1.Rows.Add(new object[] { "其他", "L-1", "990", "2" });

            return tableA1;

        }