(开发篇) 控件研究~ 删除gridview中的一行(不与数据库交互,利用datatable删除)

前台代码:

        <asp:GridView ID="gv_demonstrate_for_planning_item" runat="server" 
            AutoGenerateColumns="False" OnRowDeleting="gv_RowDeleting">
            <RowStyle BackColor="#EFF3FB" />
            <Columns>
                <asp:BoundField HeaderText="施工单位" DataField="施工单位" />
                <asp:BoundField HeaderText="工程性质" DataField="工程性质" />
                <asp:BoundField HeaderText="本周计划数" DataField="本周计划数" />
                <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
            </Columns>
        </asp:GridView>

后台代码:

    /// <summary>
    /// 删除某一条记录
    /// </summary>
    protected void gv_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        DataTable dt = new DataTable();
        dt.Columns.Add(new DataColumn("施工单位",typeof(string)));
        dt.Columns.Add(new DataColumn("工程性质", typeof(string)));
        dt.Columns.Add(new DataColumn("本周计划数", typeof(string)));

        if (gv_demonstrate_for_planning_item.Rows.Count != 0)
        {
            for (int i = 0; i < gv_demonstrate_for_planning_item.Rows.Count; i++)
            {
                if(e.RowIndex==i)
                    continue;
                DataRow dr = dt.NewRow();
                dr["施工单位"] = gv_demonstrate_for_planning_item.Rows[i].Cells[0].Text;
                dr["工程性质"] = gv_demonstrate_for_planning_item.Rows[i].Cells[1].Text;
                dr["本周计划数"] = gv_demonstrate_for_planning_item.Rows[i].Cells[2].Text;
                dt.Rows.Add(dr);
            }
        }

        gv_demonstrate_for_planning_item.DataSource = dt;
        gv_demonstrate_for_planning_item.DataBind();
    }

特别说明:

　　1.gridview控件不能根据列名定位到某一个单元格,但是可以通过索引定位,从本质上来说,gridview是一个显示的工具

　　2.删除列需要在控件代码上添加 OnRowDeleting="gv_RowDeleting" 方法

效果:

　　删除前~

　　删除后~