如何从事件中获取匿名类型数据项gridview_RowDeleting
本文关键字:数据项 类型 gridview RowDeleting 事件 获取 | 更新日期: 2023-09-27 18:33:39
我想从RowDelete事件中的GridView获取Id,我尝试过这样:
protected void gvHouse_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
Guid hholder = (Guid)(e.Values[0]);
using (var dataContext = new realtydbEntities())
{
var house = (from h in dataContext.Households.Include("aspnet_Users.aspnet_Membership")
where h.HouseholdID == hholder
select h).First();
dataContext.DeleteObject(house);
dataContext.SaveChanges();
}
}
但它不起作用。
匿名类型是这样的,我使用 List<<strong>this anonymousType> 绑定到 GridView 的数据源:
new
{
Id = u.HouseholdID,
BuNo = u.Building.BuildingName,
UnNo = u.UnitNo,
DepNo = u.DepartmentNo,
Name = u.aspnet_Users.UserName,
Corp = u.Corporation,
IdNumber = u.IdNumber,
Telephone = u.Telephone,
OtherHouseMembers = u.OtherHouseMembers,
OtherInfo = u.OtherInfo,
CrDate = u.aspnet_Users.aspnet_Membership.CreateDate
});
我想获取匿名对象或仅获取 ID 属性的值。
如果您使用的是 .net 4,则可以像这样利用dynamic
类型:
// Get the reference to the bound item
dynamic item = gvHouse.Rows[e.RowIndex].DataItem;
// Access item property
var itemId = item.Id;
请记住,您的类型的任何属性都无法通过智能感知获得,您只需要避免拼写错误即可。
这会
让你得到ID
var HouseHoldid = Guid.Parse(gvHouse.Rows[e.RowIndex].Cells[0].Text);
如果 ID 的类型为 int,则:
var HouseHoldid = Convert.ToInt32(gvHouse.Rows[e.RowIndex].Cells[0].Text);
删除后,您还必须刷新数据源。从绑定列表中删除该项并刷新网格视图的数据源
这种方式可以获取数据源
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
DataTable sourceData = (DataTable)GridView1.DataSource;
sourceData.Rows[e.RowIndex].Delete();
}