将字典词典数据绑定到GridView中 [英] Databind List of Dictionnary into a GridView
本文介绍了将字典词典数据绑定到GridView中的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想将字典列表绑定到GridView.
I'd like to bind a List of Dictionary to a GridView.
var liste = new List<Dictionary<string, string>>();
var dictionary = new Dictionary<string,string>();
dictionary["Id"] = "111";
dictionary["Description"] = "text to show";
dictionary["OtherInfo"] = "other text";
liste.Add(dictionary);
gvClients.DataSource = liste;
gvClients.DataBind();
aspx中的代码:
<asp:GridView ID="gvClients" runat="server" AutoGenerateColumns="true" GridLines="None"
AllowPaging="True" CssClass="gridview" AlternatingRowStyle-CssClass="alt" Width="80%">
<AlternatingRowStyle CssClass="alt"></AlternatingRowStyle>
<Columns>
<asp:TemplateField HeaderText="PropertyName">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("Description") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="PropertyName">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("OtherInfo") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
如何将GridView绑定到该对象(或System.Collections.HashTable).
How can I bind the GridView to that Object (or a System.Collections.HashTable).
修改
极客针对Dictionary的解决方案，但不适用于HashTable，有解决方案吗?
The geek's solution for Dictionary work but not for HashTable, is there a solution ?
var liste = new List<System.Collections.Hashtable>();
var table = new System.Collections.Hashtable();
table["Denomination"] = "a";
table["Denomination2"] = "an";
liste.Add(table);
var result = liste.Select(map => new
{
IdClient = map["Denomination"],
Denomination = map["Denomination2"]
}).ToList();
gvClients.DataSource = result;
gvClients.DataBind();
我遇到此错误:
The data source for GridView with id 'gvClients' did not have any properties or attributes from which to generate columns.
当我像这样修改映射时:
When I modify the mapping like this :
var result = liste.Select(map => new
{
IdClient = map["Denomination"],
Denomination = map["Denomination2"],
Test = "test"
}).ToList();
它将仅显示Test属性.
It will show only the Test property.
谢谢
推荐答案
查看以下代码.
<％@页面语言="C#" AutoEventWireup ="true" CodeFile ="Default.aspx.cs" Inherits ="_ Default"％>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_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>
<form id="form1" runat="server">
<div>
<asp:GridView ID="gvClients" runat="server" AutoGenerateColumns="false" GridLines="None"
CssClass="gridview" AlternatingRowStyle-CssClass="alt" Width="80%">
<AlternatingRowStyle CssClass="alt"></AlternatingRowStyle>
<Columns>
<asp:BoundField DataField="Key" />
<asp:BoundField DataField="Value" />
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections.Specialized;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
var liste = new List<Dictionary<string, string>>();
var dictionary = new Dictionary<string, string>();
dictionary["PropertyName"] = "text to show";
var dictionary2 = new Dictionary<string, string>();
dictionary2["PropertyName"] = "text to show1";
liste.Add(dictionary2);
liste.Add(dictionary);
var result = liste.SelectMany(x => x);
gvClients.DataSource = result;
gvClients.DataBind();
}
}
}
修改
我已根据您的要求编辑了代码.请尝试使用此代码，如果遇到任何问题，请告诉我.
I have edited the code as per your requirements.Please try this code and let me know if you experience any problems .
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!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 id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="gvClients" runat="server" AutoGenerateColumns="true" GridLines="None"
CssClass="gridview" AlternatingRowStyle-CssClass="alt" Width="80%">
<AlternatingRowStyle CssClass="alt"></AlternatingRowStyle>
<Columns>
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("Description") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="OtherInfo">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("OtherInfo") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public class Client
{
public string ID { get; set; }
public string Description { get; set; }
public string OtherInfo { get; set; }
}
public partial class Default3 : System.Web.UI.Page
{
List<Client> list=new List<Client>();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
var liste = new List<Dictionary<string, string>>();
var dictionary = new Dictionary<string, string>();
dictionary["ID"] = "111";
dictionary["Description"] = "XYZ";
dictionary["OtherInfo"] = "Addd";
liste.Add(dictionary);
var result = liste.Select(map => new Client
{
ID = map["ID"],
Description = map["Description"],
OtherInfo = map["OtherInfo"]
}).ToList();
gvClients.DataSource = result;
gvClients.DataBind();
}
}
}
EDITII
如果要使用哈希表，请执行以下操作
If you want to use Hashtable then do the following
创建一个名为Client的新类(随心所欲)
Create a new class named Client (what ever you want)
public class Client
{
public string IdClient { get; set; }
public string Denomination { get; set; }
}
然后按如下所示查询列表
and then query the list as follows
var liste = new List<Hashtable>();
var table = new Hashtable();
table["Denomination"] = "a";
table["Denomination2"] = "an";
liste.Add(table);
var result = liste.Select(map => new Client()
{
IdClient = map["Denomination"].ToString(),
Denomination = map["Denomination2"].ToString()
});
gvClients.DataSource = result;
gvClients.DataBind();
这篇关于将字典词典数据绑定到GridView中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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