使用C＃（WinForms）显示FQL结果DataGridView [英] Display FQL results in DataGridView using C# (WinForms)

问题描述

我有我的FQL查询，我有我的访问令牌。但是如何使用C＃和ASP.NET在GRID VIEW中显示FQL结果？

FQL：

  SELECT uid，username，first_name，last_name，friend_count，pic_big 
 FROM user 
 WHERE uid IN（SELECT uid2 FROM friend WHERE uid1 = me ））
  

这是我试过的：

 使用系统; 
使用System.Collections.Generic; 
使用System.ComponentModel; 
使用System.Data; 
使用System.Drawing; 
使用System.Linq; 
使用System.Text; 
使用System.Threading.Tasks; 
使用System.Windows.Forms; 
使用Facebook; 
 
命名空间WindowsFormsApplication1 
 {
 public partial class Form1：Form 
 {
 public Form1（）
 {
 InitializeComponent（） ; 
} 
 
 private void Form1_Load（object sender，EventArgs e）
 {
 var fb = new FacebookClient（{My Access Token}）; 
 
动态结果= fb.Get（/ me）; 
 var name = result.name; 
 
 MessageBox.Show（嗨+名称）; 
} 
} 
} 
  

我已经意识到数据作为JSON从Facebook返回，所以我试图 deserialize ，但现在仍然运气。

 使用系统; 
使用System.Collections.Generic; 
使用System.ComponentModel; 
使用System.Data; 
使用System.Drawing; 
使用System.Linq; 
使用System.Text; 
使用System.Threading.Tasks; 
使用System.Windows.Forms; 
使用Facebook; 
使用System.Dynamic; 
使用Newtonsoft.Json; 
 
命名空间WindowsFormsApplication1 
 {
 public partial class Form1：Form 
 {
 public Form1（）
 {
 InitializeComponent（） ; 
} 
 
 private void Form1_Load（object sender，EventArgs e）
 {
 
} 
 
 
 public MyFriends类
 {
 public int uid {get; set;} 
 public string username {get; set;} 
 public string first_name {get; set;} 
 public string last_name {get; set;} 
 public int friend_count {get; set;} 
 public string pic_big {get; set;} 
} 
 
 
 private void button1_Click（object sender，EventArgs e）
 {
 var fb = new FacebookClient（2A64ZAIeJVIbdZAxXRZCwYf5Bg27OgZDZD）; 
 
 var query = string.Format（SELECT uid，username，first_name，last_name，friend_count，pic_big FROM user WHERE uid IN（SELECT uid2 FROM friend WHERE uid1 = me（）））; 
 
动态参数= new ExpandoObject（）; 
 parameters.q = query; 
动态结果= fb.Get（/ fql，参数）; 
 
 results = JsonConvert.DeserializeObject&MyFriends>（results）; 
 
 //MessageBox.Show(\"Hi+ results）; 
} 
} 
} 
  

解决方案

C＃ Winforms 解决方案使用您在标题中指定的 DataGridView 控件。

---

1）修改您的 MyFriend class ，我更改了一点点

  public class MyFriends 
 {
 public long uid {get;组; } 
 public string username {get;组; } 
 public string first_name {get;组; } 
 public string last_name {get;组; } 
 public long？ friend_count {get;组; } // nullable 
 public string pic_big {get;组; 
} 
  

2）将DataGridView控件添加到表单

3）反序列化 result.data 使用 JsonConvert 到列表你也应该通过 result.data.ToString（）或者它会给出例外。

4）绑定您的新列表 DataGridView.Datasource

  var fb = new FacebookClient（accessToken）; 
 
 var query = string.Format（@SELECT uid，username，first_name，last_name，friend_count，pic_big 
 FROM user WHERE uid IN（SELECT uid2 FROM friend WHERE uid1 = me（）） ）; 
 
动态参数= new ExpandoObject（）; 
 parameters.q = query; 
动态结果= fb.Get（/ fql，参数）; 
 
列表< MyFriends> q = JsonConvert.DeserializeObject< MyFriends>>（results.data.ToString（））; 
 
 dataGridView1.DataSource = q; 
  

结果：

I have my FQL query and i have my access token. But how do i display FQL results in GRID VIEW using C# and ASP.NET?

FQL:

SELECT uid, username, first_name, last_name, friend_count, pic_big  
FROM user 
WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me()) 

This is what i have tried:

 using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using Facebook;

    namespace WindowsFormsApplication1
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }

            private void Form1_Load(object sender, EventArgs e)
            {
                var fb = new FacebookClient("{My Access Token}");

                dynamic result = fb.Get("/me");
                var name = result.name;

               MessageBox.Show("Hi " + name);
            }
        }
    }

I have realized that the data is returned from Facebook as JSON so i attempt to deserialize but still now luck.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Facebook;
using System.Dynamic;
using Newtonsoft.Json;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }


        public class MyFriends
        {
            public int uid {get; set;}
            public string username {get; set;}
            public string first_name {get; set;}
            public string last_name {get; set;}
            public int friend_count {get; set;}
            public string pic_big {get; set;}
        }


        private void button1_Click(object sender, EventArgs e)
        {
            var fb = new FacebookClient("2A64ZAIeJVIbdZAxXRZCwYf5Bg27OgZDZD");

            var query = string.Format("SELECT uid, username, first_name, last_name, friend_count, pic_big  FROM user WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me())");

            dynamic parameters = new ExpandoObject();
            parameters.q = query;
            dynamic results = fb.Get("/fql", parameters);

            results = JsonConvert.DeserializeObject<MyFriends>(results);

            //MessageBox.Show("Hi " + results);
        }
    }
}

解决方案

C# Winforms solution using a DataGridView control like you specify in the title.

---

1) Modify your MyFriend class, I changed it a little bit

public class MyFriends
{
    public long uid { get; set; }            
    public string username { get; set; }
    public string first_name { get; set; }
    public string last_name { get; set; }
    public long? friend_count { get; set; }  //nullable
    public string pic_big { get; set; }
}

2) Add DataGridView control to your form

3) Deserialize your result.data using JsonConvert to a List. You should also pass result.data.ToString() or it will give an exception.

4) Bind your new list to DataGridView.Datasource

var fb = new FacebookClient("accessToken");

var query = string.Format(@"SELECT uid, username, first_name, last_name, friend_count, pic_big 
                            FROM user WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me())");

dynamic parameters = new ExpandoObject();
parameters.q = query;
dynamic results = fb.Get("/fql", parameters);

List<MyFriends> q = JsonConvert.DeserializeObject<List<MyFriends>>(results.data.ToString());

dataGridView1.DataSource = q;

Result:

这篇关于使用C＃（WinForms）显示FQL结果DataGridView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！