Question

Asp.net中关于删除的代码

private void DataGriduser_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
DbTools tool=new DbTools();
int uID=Convert.ToInt32(this.DataGriduser.DataKeys[e.Item.ItemIndex]);
if(tool.delUser(uID))
{
if((this.DataGriduser.CurrentPageIndex==this.DataGriduser.PageCount-1)&&this.DataGriduser.CurrentPageIndex!=0)
{
if(e.Item.ItemIndex==0)
{
this.DataGriduser.CurrentPageIndex=this.DataGriduser.CurrentPageIndex-1;
}
}
}
this.BindToDataGriduser(Session["sql"].ToString());
}
这段关于删除的代码，哪位同志能帮我解释一下。。。

Answer 1

private void DataGriduser_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
DbTools tool=new DbTools(); //创建实例
int uID=Convert.ToInt32(this.DataGriduser.DataKeys [e.Item.ItemIndex]); //获得主键
if(tool.delUser(uID)) // 删除
{
if((this.DataGriduser.CurrentPageIndex==this.DataGriduser.PageCount-1)&&this.DataGriduser.CurrentPageIndex!=0) //这是判断删除后的数据 分页绑定
{
if(e.Item.ItemIndex==0)
{
this.DataGriduser.CurrentPageIndex=this.DataGriduser.CurrentPageIndex-1; //设置页数
}
}
}
this.BindToDataGriduser(Session["sql"].ToString()); //绑定
}