一个dataGrid的嵌套单选项

蓝色梦幻 · 发表于 2008-8-28 17:51

甲方给了我设计的样式，我一看头大了，知道这下不好做了。
表格一列中，左列是父类的名称，中间是子类的所有名称包括前面有一个单选按钮，后面是一列其它的。
想到用嵌套DataGrid,查了最少半个小时的网上资料，还是没有我要的。最后在开发经理的提醒下，我终于决定自己做。
说起来挺麻烦，把代码帖出来吧：有心得的可以交流下啊
前台.aspx代码：
<%@ Page Language=\"C#\" AutoEventWireup=\"true\" CodeFile=\"testGridLayout.aspx.cs\" Inherits=\"testGridLayout\" %>

<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">

<html xmlns=\"http://www.w3.org/1999/xhtml\" >
<head runat=\"server\">
<title>无标题页</title>
</head>
<body>
<form id=\"form1\" runat=\"server\">
<div>
<asp

ataGrid ID=\"DataGrid1\"  runat=\"server\" DataKeyField=\"ID\" AutoGenerateColumns=\"False\"
                                             Width=\"100%\"  HeaderStyle-BackColor=\"#78A9CD\"
                                             HeaderStyle-CssClass=\"fontwhite\" BackColor=\"White\" BorderColor=\"#AFCDE2\" BorderWidth=\"1px\"
                                             CssClass=\"font1\"  HeaderStyle-HorizontalAlign =\"center\" >
         <Columns>
               <asp:TemplateColumn SortExpression=\"Name\" HeaderText=\"版块\" >
                  <ItemTemplate>
                     <%# DataBinder.Eval(Container.DataItem, \"Name\")%>
                  </ItemTemplate>
                  <ItemStyle HorizontalAlign=\"Center\" BorderColor=\"#AFCDE2\" BorderWidth=\"1px\" />
            </asp:TemplateColumn>

            <asp:TemplateColumn SortExpression=\"Expenses\" HeaderText=\"请选择其中一项\">
                  <ItemTemplate>
                     <asp:RadioButtonList ID=\"RadioButtonList1\" runat=\"server\" AutoPostBack=\"True\"  DataTextField =\"Name\" DataValueField =\"ChildFlag\"  DataSource=\'<%#GetOneSource(DataBinder.Eval(Container.DataItem, \"Name\").ToString(), DataBinder.Eval(Container.DataItem, \"ChildFlag\").ToString())%>\' RepeatLayout=\"Flow\" RepeatDirection=\"Horizontal\">
                     </asp:RadioButtonList>
                  </ItemTemplate>

            </asp:TemplateColumn>

               <asp:TemplateColumn SortExpression=\"Expenses\" HeaderText=\"资费\">
            <ItemTemplate>
                  <%# DataBinder.Eval(Container.DataItem, \"Expenses\")%>
            </ItemTemplate>
               <ItemStyle HorizontalAlign=\"Center\" BorderColor=\"#AFCDE2\" BorderWidth=\"1px\" />
            </asp:TemplateColumn>
            </Columns>
         <HeaderStyle BackColor=\"#78A9CD\" CssClass=\"fontwhite\" HorizontalAlign=\"Center\" />
      </asp

ataGrid>
      <asp:HiddenField ID=\"HiddenField1\" runat=\"server\" />
      <br />
      <asp:Button ID=\"Button1\" runat=\"server\" OnClick=\"Button1_Click\" Text=\"Button\" /></div>
</form>
</body>
</html>
后台..CS代码：
public partial class testGridLayout : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
      Response.Write(HiddenField1.Value);
      if (!IsPostBack)
      {
         int iCount;
         DataTable dt = 只有父类的表集合;
         DataGrid1.DataSource = dt;
         DataGrid1.DataBind();
      }

}

public DataTable  GetOneSource(string name, string key)
{

      DataTable dt = new SourceModule().SearchByOriginKey(2, key);
      for (int i = 0; i < DataGrid1.Items.Count; i++)
      {
         RadioButtonList aa = (RadioButtonList)DataGrid1.Items.Cells[0].FindControl(\"RadioButtonList1\");
         aa.DataSource = dt;
         aa.DataValueField = \"要取的子类ID\";
         aa.DataTextField = \"要到的子类名称\";
      }
      return dt;
}
protected void Button1_Click(object sender, EventArgs e)
{
      StringBuilder choice = new StringBuilder();
      for (int i = 0; i < DataGrid1.Items.Count; i++)
      {
         RadioButtonList aa = (RadioButtonList)DataGrid1.Items.Cells[0].FindControl(\"RadioButtonList1\");
         for (int j = 0; j < aa.Items.Count; j++)
         {
            if (aa.Items[j].Selected == true)
            {
                  choice.Append(aa.Items[j].Value);
                  choice.Append(\",\");
            }
         }
      }
      HiddenField1.Value = choice.ToString().Substring(0,choice.Length-1);
}
  }

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