girdview的RowDeleted方法e.AffectedRows的值的问题

scudflying 2008-09-28 11:06:25

我在girdview中通过objectDataSource对数据库进行操作

我在RowDeleted方法种取e.AffectedRows的值发现成功后它的值是-1

数据源方法如下
public int DeleteRoomTypeById(int TypeID)
{
int result = 0;
result = RoomTypeService.DeleteRoomTypeById(TypeID);
return result;
}

RowDeleted方法如下
protected void GVWRoomType_RowDeleted(object sender, GridViewDeletedEventArgs e)
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "myscript", "<script>alert('"+e.AffectedRows+"')</script>");
}

这是怎么回事？

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namhyuk 2008-09-30

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呵呵，比我玩得有灵性。

scudflying 2008-09-30

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受到楼上兄弟的启发，改了下

数据源的Deleted方法
protected void ODSRoomType_Deleted(object sender, ObjectDataSourceStatusEventArgs e)
{
e.AffectedRows = (int)e.ReturnValue;
}

girdview的RowDeleted方法
protected void GVWRoomType_RowDeleted(object sender, GridViewDeletedEventArgs e)
{
e.ExceptionHandled = true;
if (e.Exception == null && e.AffectedRows == 1)
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "myscript", "<script>alert('删除成功!')</script>");
}
else
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "myscript", "<script>alert('删除失败!')</script>");
}
}

先在数据源的Deleted方法里e.AffectedRows = (int)e.ReturnValue;
然后在girdview的RowDeleted里就可以取到e.AffectedRows了

namhyuk 2008-09-30

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我也没搞明白。

如果BLL里
[System.ComponentModel.DataObjectMethod(System.ComponentModel.DataObjectMethodType.Delete, true)]
public bool Delete(int uid)
{
int rowsAffectd = Adapter.Delete(uid);
return rowsAffectd == 1;
}

那么
protected void ObjectDataSource1_Deleted(object sender, ObjectDataSourceStatusEventArgs e)
{
Page.ClientScript.RegisterStartupScript(this.GetType(), "scriptKey", string.Format("alert('{0}')", e.ReturnValue), true);
}

也就是在ObjectDataSource.Deleted倒是能通过e.ReturnValue来取得BLL方法的返回值。

cyz9977 2008-09-30

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e.RowIndex

cyz9977 2008-09-29

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protected void GVWRoomType_RowDeleted(object sender, GridViewDeletedEventArgs e)
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "myscript", " <script>alert('"+e.AffectedRows+"') </script>");
}
貌似你應該寫在GVWRoomType_RowDeleting方法裡面

scudflying 2008-09-29