需要学习如何将选定的值存储到会话中 [英] Need to learn how to store selected values into a session

问题描述

您好，我正在使用表控件，并且我有这段代码
它遍历选定的记录.

示例代码:

这就是我所拥有的:

Hello world, I am using table controls and I have this code
It loops through selected records.

example code:

this is what I have:

MyTableControl tbl =
    (MyTableControl)this.Page.FindControlRecursively("MyTableControl");
if (tbl != null)
{
    MyTableControlRecordControl[] rows = tbl.GetSelectedRecordControls();
    this.Page.Session["MyTableControl"] =rows;
}


public MyTableControlRecordControl[] GetSelectedRecordControls()
{
    ArrayList selectedList = new ArrayList(25);
    foreach (MyTableControlRecordControl recControl in this.GetRecordControls())
    {
        if (recControl.MyTableRecordRowSelection.Checked) 
        {
            selectedList.Add(recControl);
        }
    }

    return (MyTableControlRecordControl[])(selectedList.ToArray(Type.GetType("test.UI.Controls.TablePage.MYTableControlRow")));
}

多亏了几个程序员的帮助.粗体和下划线的文本.
我必须将会话中的信息发送到另一个页面并填充另一个
会话中具有值的表控件.

Thanks to the help of a couple programmers. The text that is bold and underline.
I have to send the information in the session to another page and populate a different
table control with values in the session.

推荐答案

如果我正确地理解了您的话，可以采取以下措施:


Session.Add("Key", rows);

Something along the lines of this if I''ve understood you correctly:


Session.Add("Key", rows);

使用会话变量来保存行集合.

Use a session variable to hold the rows collection.

Session["SelectedRows"] = rows;

您必须将其强制转换后才能再次使用:

You''ll have to cast it to use it again:

MyTableControlRecordControl[] rows = Session["SelectedRows"] as MyTableControlRecordControl[];

确保在Page Directive或web.Config中，sessionState设置为TRUE

Make sure that in Page Directive or in web.Config the sessionState is set to TRUE

EnableSessionState="True" 

不是这样的只读

not Readonly like this

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Test" EnableSessionState="ReadOnly" %>

确保GetSelectedRecordControls()返回的对象不是null.

同时确保MyTableControlRecordControl可序列化.

是的，您必须在如上所述使用会话存储的变量之前对其进行强制转换.

make sure that GetSelectedRecordControls() return a object not a null.

Also ensure that MyTableControlRecordControl is serializable.

and yes you have to cast it before using Session Stored variable as described above.

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