Dev-GridView-对于gridview的列值的合计

方法1:控件自带

进入Run Designer:

① 设置属性:Views-Options-OptionsView-ShowFooter=true

②对于需要值操作的列进行操作:SummaryItem-SummaryType-Sum(可以设置sum,max,min,等)

方法2:重写方法

//要操作的表

dt;

//添加显示合计的一行

if (dt.Rows.Count > 0)
{
DataRow dr = dt.NewRow();
dr[m_PrimarColumNm] = "合计";
SetSum(ref dr, dt, “需要合计的列名”);
dt.Rows.Add(dr);
}

/// <summary>
/// 统计表格列的总和(对于求和的列必须为数字类型)
/// </summary>
/// <param name="dr">显示合计的一行</param>
/// <param name="dt">要操作的表格</param>
/// <param name="colunNm">要求和的列</param>
private void SetSum(ref DataRow dr, DataTable dt, string colunNm)
{
try
{
dr[colunNm] = "0";
foreach (DataRow item in dt.Rows)
{

dr[colunNm] = (Convert.ToInt32(dr[colunNm].ToString()) + Convert.ToInt32(item[colunNm].ToString())).ToString();
}
}
catch (Exception ex)
{

throw ex;
}
}

方法3:没实现的方法

            //gridView1.OptionsView.ShowFooter = true;
            //gridView1.GroupSummary.Clear();
            ///方法1
            //gridView1.GroupSummary.Add(DevExpress.Data.SummaryItemType.Sum, "列名", 表格列, "组计:{0}");
            ///方法2
            //GridGroupSummaryItem item1 = new GridGroupSummaryItem();
            //item1.FieldName = "s1";
            //item1.SummaryType = DevExpress.Data.SummaryItemType.Sum;
            //item1.DisplayFormat = "";//格式            
            //item1.ShowInGroupColumnFooter = s1;
            //item1.ShowInGroupColumnFooterName = "s1";
            //这句就是给groupcolumnfooter加上
            //gridView1.GroupSummary.Add(item1);
            ///方法3(设计器方法)
            this.s1.Summary.AddRange(new DevExpress.XtraGrid.GridSummaryItem[] {
            new DevExpress.XtraGrid.GridColumnSummaryItem(DevExpress.Data.SummaryItemType.Sum)});

 

posted @ 2015-09-25 16:05  人生为卒  阅读(1563)  评论(0编辑  收藏  举报