Ext.Net点击GridPanel中一行，在FormPanel里后台加载详细数据

参考官方Demo：GridPanel -> Data With Details - Form Details

其主要过程

1.在GridPanel的SelectionModel段内编写DirectEvents,DirectEvents的子元素RowSelect的OnEvent属性，这里指定了后台调用的方法名称

<SelectionModel>
                        <ext:RowSelectionModel runat="server" SingleSelect="true">
                            <DirectEvents>
                                <RowSelect OnEvent="RowSelect" Buffer="100">
                                    <EventMask ShowMask="true" Target="CustomTarget" CustomTarget="#{FormPanel1}" />
                                    <ExtraParams>
                                        <%-- or can use params[2].id as value --%>
                                        <ext:Parameter Name="EmployeeID" Value="this.getSelected().id" Mode="Raw" />
                                    </ExtraParams>
                                </RowSelect>
                            </DirectEvents>
                        </ext:RowSelectionModel>
                    </SelectionModel>

2.编写后台功能代码

protected void RowSelect(object sender, DirectEventArgs e)
    {
        string employeeID = e.ExtraParams["EmployeeID"];

        Employee empl = Employee.GetEmployee(int.Parse(employeeID));

        this.FormPanel1.SetValues(new {
            empl.EmployeeID,
            empl.FirstName,                          
            empl.LastName,
            empl.Title,
            ReportsTo = empl.ReportsTo.HasValue ? (Employee.GetEmployee(empl.ReportsTo.Value).LastName) : "",
            empl.HireDate,
            empl.Extension,
            empl.Address,
            empl.City,
            empl.PostalCode,
            empl.HomePhone,
            empl.TitleOfCourtesy,
            empl.BirthDate,
            empl.Region,
            empl.Country,
            empl.Notes
        });
    }