学步园

想从一个字符串中查找最后一个冒号之前的自字符串，c#中没有从右截取字符串这样的函数，正不知道该怎么好的时候，发现有一个函数叫做lastindexof（），嗯，简直太好用啦~ 灭卡卡~~

 关于datatable存xml结点，我的想法还是不成熟，之前因为考虑不周出现了本来应该配对的offercode和qty值没能匹配上

昨天试着把一组值存在同一行上，可是判断哪些值是一组可以存在同一行这一点出现了障碍...

现在虽然配对offercode跟qty已经实现了，可是还是有很多问题的... orz

救命啊，谁帮我想一个好点的方法 (┬＿┬)

 

 

 

 

打开一个新网页：

<a href="#" onclick="window.open('资源地址','','WIDTH=430,height=380 TOP=0 left=350')"><IMG border=0 SRC="图形文件地址"></a>

 

 

 

 

 本页面合计：

   private double sum = 0;
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

     if (e.Row.RowIndex >= 0)

        {

            sum += Convert.ToDouble(e.Row.Cells[6].Text.Replace("￥", ""));

        }

        else if (e.Row.RowType == DataControlRowType.Footer)

        {

            e.Row.Cells[0].Text = "合计：";

            e.Row.Cells[0].HorizontalAlign = HorizontalAlign.Right;

            e.Row.Cells[1].Text = sum.ToString("C");

            e.Row.Cells[1].HorizontalAlign = HorizontalAlign.Right;

            e.Row.Cells[0].ColumnSpan = 5;

            e.Row.Cells[1].Text = sum.ToString("C")+"(元)";

        
        } }

如果从数据库直接取出sum

面是本页的一改ok了.  
    private double sum = 数据库中取出赋值;

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

    {

      if (e.Row.RowType == DataControlRowType.Footer)

        {

            e.Row.Cells[0].Text = "合计：";

            e.Row.Cells[0].HorizontalAlign = HorizontalAlign.Right;

            e.Row.Cells[1].Text = sum.ToString("C");

            e.Row.Cells[1].HorizontalAlign = HorizontalAlign.Right;

            e.Row.Cells[0].ColumnSpan = 5;

            e.Row.Cells[1].Text = sum.ToString("C")+"(元)";

        
        } }

可是我不想单个页面核计，我需要所有页面的总合计每个页面都列出这个总计的值。

因为不想另写sql，于是改写了一下

protected void grdView_RealtimeSaves_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        if (e.Row.RowType == DataControlRowType.DataRow)

        {

            if (Saves_searchFlag) //用来控制只核计累加一遍，而不要没翻一页就翻倍累加一遍 - =
            {

                DataRowView drv = (DataRowView)e.Row.DataItem;

                if (hidtotal_SavesSale.Value == "")

                {

                    hidtotal_SavesSale.Value = (Convert.ToDouble(drv[3].ToString())).ToString();

                }

                else

                {

                    hidtotal_SavesSale.Value = (Convert.ToDouble(hidtotal_SavesSale.Value) + Convert.ToDouble(drv[3].ToString())).ToString();

                }
                if (hidtotal_SavesShip.Value == "")

                {

                    hidtotal_SavesShip.Value = (Convert.ToDouble(drv[4].ToString())).ToString();

                }

                else

                {

                    hidtotal_SavesShip.Value = (Convert.ToDouble(hidtotal_SavesShip.Value) + Convert.ToDouble(drv[4].ToString())).ToString();

                }

            }

        }
        if (e.Row.RowType == DataControlRowType.Footer)

        {

            Saves_searchFlag = false;  //加载过一次咯~ false掉~


            e.Row.Cells[0].Text = "Total:";

            e.Row.Cells[3].Text = "$" + hidtotal_SavesSale.Value;

            e.Row.Cells[4].Text = "$" + hidtotal_SavesShip.Value;

            e.Row.Cells[3].HorizontalAlign = HorizontalAlign.Right;

            e.Row.Cells[4].HorizontalAlign = HorizontalAlign.Right;

        }

    }
protected void btnSearch_Click(object sender, EventArgs e)

    { 

        hidtotal_SavesSale.Value = "";

        hidtotal_SavesShip.Value = ""; 

        Saves_searchFlag = true;

 

        grdView_RealtimeSaves_BindGrd();

    }

http://curare.blog.163.com/blog/static/881144220083240321126/

用js在footer加上某欄的Total合計

http://www.dotblogs.com.tw/hatelove/archive/2008/12/25/6532.aspx