DataGrid应用技巧两则(downmoon)---列求和与列字段转换

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DataGrid应用技巧两则(downmoon)
一：增加求和列： 

private void dgMeets_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
  {
  
   if(e.Item.ItemType== ListItemType.Item || e.Item.ItemType== ListItemType.Item)
   {
    //某列总和 
    intTotalNew=0;
    int i; 
    DataTable myTable; 
    myTable = (DataTable) ((DataSet)this.dgMeets.DataSource).Tables[0]; 
    for(i = 0;i < myTable.Rows.Count;i++) 
    { 
     intTotalNew+=int.Parse(myTable.Rows[i]["attendnum"].ToString());
    }
   }
   else if (e.Item.ItemType== ListItemType.Footer)
   {
    e.Item.Cells[6].Text = "总计:" + intTotalNew.ToString()+"人";
    e.Item.Cells[6].Attributes.Add("Align","Right");
   }
  }

二：列字段转换：
方法1：

<asp:TemplateColumn HeaderText="是否可见">
         <HeaderStyle HorizontalAlign="Center" Width="10%"></HeaderStyle>
         <ItemStyle HorizontalAlign="Center"></ItemStyle>
         <ItemTemplate>
          <asp:Label runat="server" ID="lb" Text='<%# ((DataBinder.Eval(Container, "DataItem.Conf_show", "{0}"))=="0")?"是":"<font color=red>否</font>" %>'> ' ></asp:Label>
         </ItemTemplate>
        </asp:TemplateColumn>

方法2：
后台------------

public string ConvertToBool(string k)
  {
   string s = (k=="0")?"是":"<font color=red>否</font>";
   return s;  }

前台：

<asp:TemplateColumn HeaderText="是否可见">
         <HeaderStyle HorizontalAlign="Center" Width="10%"></HeaderStyle>
         <ItemStyle HorizontalAlign="Center"></ItemStyle>
         <ItemTemplate>
          <asp:Label runat="server" ID="lb" Text='<%# ConvertToBool(DataBinder.Eval(Container, "DataItem.Conf_show", "{0}")) %>'> ' ></asp:Label>
         </ItemTemplate>
        </asp:TemplateColumn>