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所以我试图在我的数据表上用一个按钮字段实现一列按钮。但是,到目前为止,我没有将它们映射到任何事件,但由于某种原因,每当我单击其中一个按钮时,我相信它会触发 Page_Load 事件。这当然会重新加载页面,但由于其编码方式,页面本身会添加列的副本。然而,我觉得这很奇怪,因为每当我刷新页面本身时,列都不会重复。也许这是因为刷新页面时它会从一个干净的状态开始。无论如何,这些按钮神秘地有一个功能,我相信它可能会阻碍我真正想要它拥有的功能。

public partial class ViewData : System.Web.UI.Page
{
    //will have use for this later
    private Member curMember;
    //database connection
    private SLHSDataContext SLHS_DB = new SLHSDataContext();

    private int curStudentIndex;

    //useful constant
    private const string NUMBER = "Number";
    private const string FIRSTNAME = "First Name";
    private const string LASTNAME = "Last Name";
    private const string AGE = "Age";
    private const string EMAIL = "Email";
    private const string EDIT = "Edit";

    protected void Page_Load(object sender, EventArgs e)
    {
        CheckMember();
        LoadDataTable();

    }

LoadDataTable() 的函数:

void LoadDataTable()
    {
        //create table
        DataTable table = new DataTable();

        AddColumnToTable(table);

        //query all students
        IQueryable<Member> query = from mem in SLHS_DB.Members
                                       where mem.RoleId == (int)Credentials.MemberRole.STUDENT
                                       select mem;

        Member[] students = query.ToArray();

        //add them to table
        curStudentIndex = 0;

        foreach (Member student in students)
        {
            AddRowToTable(table, student);
        }

        //Add the button column of "Remove"s

        ButtonField buttonField = new ButtonField
        {
            ButtonType = ButtonType.Button,
            Text = "Remove",
            HeaderText = "Edit",
            CommandName = "Remove"
        };
        gridViewStudent.Columns.Add(buttonField);

        //bind data to grid view
        gridViewStudent.DataSource = table;         
        gridViewStudent.DataBind();
    }

当按下按钮时,我希望它进入的事件处理程序(但当前甚至不会在按下按钮时进入)如下所示:

protected void gridViewStudent_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        System.Diagnostics.Debug.WriteLine("testing button event");
        if (e.CommandName == "Remove")
        {
            // Retrieve the row index stored in the 
            // CommandArgument property.
            int index = Convert.ToInt32(e.CommandArgument);
            System.Diagnostics.Debug.WriteLine(index);
            // Retrieve the row that contains the button 
            // from the Rows collection.
            //GridViewRow row = GridView1.Rows[index];

            // Add code here to add the item to the shopping cart.

        }

    }
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