C# 使用C将列添加到ASP.net Gridview#

在asp.net中将列添加到grdview的C#代码（代码隐藏）是什么…与此等效的东西：

<asp:BoundField DataField="Last Name" 
             HeaderText="Last Name" 
             SortExpression="LastName" />

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大致如下：

var column = new BoundField();
column.DataField = "LastName";
column.HeaderText = "Last Name";
column.SortExpression = "LastName";
GridView1.Columns.Add(column);

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大致如下：

var column = new BoundField();
column.DataField = "LastName";
column.HeaderText = "Last Name";
column.SortExpression = "LastName";
GridView1.Columns.Add(column);

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                var boundColumn = new BoundField();
                boundColumn.DataField = "LastName";
                boundColumn.HeaderText = "Last Name";
                boundColumn.SortExpression = "LastName";
                GVPictures.Columns.Add(boundColumn);                
                BindGridView();
            }
        }