C#最简单的关闭子窗体更新父窗体的实现方法

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;
}