ASP.NET—001:GridView绑定List、页面返回值
绑定的方法是两句代码:
GridView名.DataSource = List<自定义类>; GridView名.DataBind();
直接看例子吧,以下是一个绑定一个PersonModel类的例子。其中用到了页面返回参数,使用js传递,js可写在前端也可直接写在后台代码里。
项目结构:
效果:
实体类
public class PersonModel { private int personIndex; public int PersonIndex { get { return personIndex; } set { personIndex = value; } } private string personID; public string PersonID { get { return personID; } set { personID = value; } } private string personName; public string PersonName { get { return personName; } set { personName = value; } } private string personSex; public string PersonSex { get { return personSex; } set { personSex = value; } } private int personAge; public int PersonAge { get { return personAge; } set { personAge = value; } } private bool personSelected = false; public bool PersonSelected { get { return personSelected; } set { personSelected = value; } } }
针对绑定的aspx页面写一个管理类,用于操作数据
public class ChildFrmManager { private List<PersonModel> personCollect = new List<PersonModel>(); private static ChildFrmManager instance = null; public List<PersonModel> PersonCollect { get { return personCollect; } set { personCollect = value; } } public static ChildFrmManager DoGetInstance() { if (instance == null) { instance = new ChildFrmManager(); } return instance; } public void DoAddPersons() { for (int i = 0; i < 20; i++) { PersonModel model = new PersonModel(); model.PersonIndex = i + 1; model.PersonID = System.Guid.NewGuid().ToString(); model.PersonName = "测试" + i; model.PersonAge = 27 + i; model.PersonSex = i % 2 == 0 ? "男" : "女"; model.PersonSelected = false; this.PersonCollect.Add(model); } } }绑定的页面前端
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ChildFrm.aspx.cs" Inherits="ASPNetGridView.Pages.ChildFrm" %> <!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></title> </head> <<body id="MyBody" runat="server" ms_positioning="GridLayout"> <form id="Form1" runat="server" method="post"> <div> <asp:GridView ID="dgPersons" runat="server" AutoGenerateColumns="False" EnableViewState="false" CellPadding="4" ForeColor="#333333" DataKeyNames="PersonID" OnSelectedIndexChanged="Selcted_Click"> <Columns> <asp:CommandField ShowSelectButton="True" /> <asp:BoundField DataField="PersonIndex" HeaderText="序号"/> <asp:TemplateField> <ItemTemplate> <input id="radiobutton1" name="pselect" type="radio" /> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="PersonName" HeaderText="姓名" /> <asp:BoundField DataField="PersonAge" HeaderText="年龄" /> <asp:BoundField DataField="PersonSex" HeaderText="性别" /> </Columns> <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" /> <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" /> <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> <EditRowStyle BackColor="#999999" /> <AlternatingRowStyle BackColor="White" ForeColor="#284775" /> </asp:GridView> </div> </form> </body> </html>
绑定页面后台
public partial class ChildFrm : System.Web.UI.Page { private ChildFrmManager dManager = null; protected PersonModel selectItem = null; protected void Page_Load(object sender, EventArgs e) { dManager = ChildFrmManager.DoGetInstance(); if (!IsPostBack) { dManager.DoAddPersons(); this.dgPersons.DataSource = dManager.PersonCollect; this.dgPersons.DataBind(); } } protected void Selcted_Click(object sender, EventArgs e) { int selectIndex = this.dgPersons.SelectedIndex; foreach (PersonModel mitem in dManager.PersonCollect) { if (mitem.PersonIndex - 1 == selectIndex) { mitem.PersonSelected = true; } else { mitem.PersonSelected = false; } } selectItem = dManager.PersonCollect[selectIndex]; string vbCrLf = " "; string strScript = "<script>" + vbCrLf; strScript += "window.parent.returnValue=‘" + selectItem.PersonName + "‘;" + vbCrLf; strScript += "window.parent.close();" + vbCrLf; strScript += "</script>" + vbCrLf; if (!IsClientScriptBlockRegistered("clientScript")) { RegisterClientScriptBlock("clientScript", strScript); } } }
承载绑定页面的页面
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="FrameFrm.aspx.cs" Inherits="ASPNetGridView.Pages.FrameFrm" %> <!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></title> </head> <frameset rows="0,*"> <frame src="about:blank"> <frame src="ChildFrm.aspx"> </frameset> </html>
主页面,获取返回值的js在前端
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ASPNetGridView._Default" %> <!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></title> </head> <body> <div align="center"> <form id="Form1" runat="server" method="post"> <table runat="server"> <tr> <td> <asp:Label ID="Label1" runat="server" Font-Bold="true">选择结果</asp:Label> </td> <td> <asp:TextBox ID="txtShowReturnValue" runat="server" Width="100px" /> </td> <td> <asp:Button ID="btnOpenNewFrm" runat="server" Text="选择" Width="60px" OnClientClick="OpenNewWindow()"/> </td> </tr> </table> </form> </div> </body> <script type =‘text/javascript‘> function OpenNewWindow() { var str = window.showModalDialog(‘Pages/FrameFrm.aspx‘, document.Form1.txtShowReturnValue.value, ‘dialogWidth=1000px;dialogHeight=900px‘, ‘scroll:yes‘); if (str != null) { document.Form1.txtShowReturnValue.value = str; } } </script> </html>
代码下载
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