C#代码总结04---通过创建临时表DataTable进行临时编辑删除

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原作者: [db:作者] 来自: [db:来源] 收藏邀请

<script type="text/javascript"> 
        //删除
        function Delete(hdGuid) {
            $("#hdGuid").val(hdGuid);
            $("#btnDel").click();
        }
</script>

<body>
    <input  />
    <asp:ImageButton ImageUrl="" ID="btnDel" runat="server" OnClientClick="return confirm('确认删除该入库申请?');"
        OnClick="btnDel_Click" CssClass="hidden" />
        。。。。。。
    <cc:PagingGridView ID="GridViewData" Width="100%" runat="server" AutoGenerateColumns="False"
            PageSize="20" OnBindDataSource="GridViewData_BindDataSource">
            <EmptyDataTemplate>
                无相关数据
            </EmptyDataTemplate>
            <Columns>
            <asp:TemplateField HeaderText="操作">
                    <HeaderStyle Width="5%" />
                    <ItemStyle Width="5%" />
                    <ItemTemplate>
                        <a href="#" onclick="Delete('<%# Container.DataItemIndex%>')" class="aCss addreturn">
                            <img src="../images/DGBtn/sc.gif" alt="删除" />
                        </a>
           </ItemTemplate>
                </asp:TemplateField>
            </Columns>
            <RowStyle CssClass="td1" />
            <HeaderStyle CssClass="td_bthead" />
            <PagerStyle CssClass="td0" />
            <AlternatingRowStyle CssClass="td2" />
        </cc:PagingGridView>
    </div>
    </form>
</body>

以上为前台代码????

后台代码：

/// <summary>
    /// 保存临时表datatable
    /// </summary>
    protected DataTable dt0
    {
        get { return (DataTable)ViewState["dt0"]; }
        set { ViewState["dt0"] = value; }
    }

　　protected void btnDel_Click(object sender, ImageClickEventArgs e)
    {

        int cfs = Convert.ToInt32(cftsTB.Text);
        if (cfs > 1)
        {
            dt0.Rows.RemoveAt(Convert.ToInt32(hdGuid.Value));
            PageDataList.BindGridView(GridViewData, dt0);
            cftsTB.Text = string.Format("{0}", cfs - 1);
        }
        else
        {
            PageHelper.MessageBox(this, "拆分数目需要大于1！");
        }
    }

问题在于，①创建一个全局的临时表变量 dt0 ，用于调用和修改；②使用datatable的属性方法来进行操作、如

PageDataList.BindGridView(GridViewData, dt0);

dt0.Rows.RemoveAt(Convert.ToInt32(hdGuid.Value));
删除是根据 页面序号(hdGuid.Value)来进行操作的

附上通常创建临时表的代码：

public void creatCfdt(decimal cfNum)
    {
        string result = null;
        ZcKcbEntity kcb = new ZcKcbAction().GetInfo(guid);
        DataTable data = new DataTable();

        data.Columns.Add(new DataColumn("guid", System.Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("zcmc", System.Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("czcode", System.Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("dj", System.Type.GetType("System.Decimal")));
        data.Columns.Add(new DataColumn("je", System.Type.GetType("System.Decimal")));
        data.Columns.Add(new DataColumn("syr", Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("sybm", System.Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("syfx", System.Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("cfdd", System.Type.GetType("System.String")));
        data.Columns.Add(new DataColumn("djsj", System.Type.GetType("System.DateTime")));
        data.Columns.Add(new DataColumn("sl", Type.GetType("System.Decimal")));
       
        DataRow row2 = data.NewRow();
        row2["guid"] = kcb.guid;
        row2["zcmc"] = kcb.zcmc;
        row2["czcode"] = kcb.czcode;
        row2["dj"] = kcb.dj;
        row2["je"] = kcb.je;
        row2["syr"] = kcb.syr;
        row2["sybm"] = kcb.sybm;
        row2["syfx"] = kcb.syfx;
        row2["cfdd"] = kcb.cfdd;
        row2["djsj"] = kcb.djsj;
        row2["sl"] = kcb.sl - cfNum + 1;
        data.Rows.Add(row2);

        dt0 = data;
        if (data != null)
        {
            //绑定数据
            if (!PageDataList.BindGridView(GridViewData, data))
            {
                result = "绑定列表失败!";
            }
        }
        else
        {
            result = "获取数据失败!";
        }

        //返回结果
        PageHelper.MessageBox2(this, result);
    }