在instagram项目中错误'需要对象引用...' [英] Error 'an object reference is required …' in instagram project
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问题描述
我正在制作一个软件，您可以输入名称，它将在Instagram上搜索并抓取信息并显示给您。现在，我希望它在标签上显示名称和其他东西，但它说需要一个对象引用...。
i在lbl_Name中获取该错误，这是代码：
i'm making a software that you can type the name and it'll search on instagram and scrape the info and show it to you . now, i want it to show the name and other things on a label but it says an object reference is required ... .
i get that error in "lbl_Name" and this is the code:
public static async void PullUserPosts(string usertoscrape)
{
IResult<InstaUser> UserSearch = await api.GetUserAsync(usertoscrape);
lbl_Name.text($"USER: {UserSearch.Value.FullName}\n\tFollowers: {UserSearch.Value.FollowersCount} \n\tVerified {UserSearch.Value.IsVerified}");
IResult<InstaMediaList> media = await api.GetUserMediaAsync(usertoscrape, PaginationParameters.MaxPagesToLoad(4));
List<InstaMedia> mediaList = media.Value.ToList();
public partial class Form1 : Form
{
private const string username = "";
private const string password = "";
private static UserSessionData user;
private static IInstaApi api;
private void Form1_Load(object sender, EventArgs e)
{
user = new UserSessionData();
user.UserName = username;
user.Password = password;
Login();
//lbl_Name.Text = $"USER: {UserSearch.Value.FullName}\n\tFollowers";
}
public Form1()
{
InitializeComponent();
}
private void Btn_Search_Click(object sender, EventArgs e)
{
}
public static async void Login()
{
api = InstaApiBuilder.CreateBuilder()
.SetUser(user)
.UseLogger(new DebugLogger(LogLevel.Exceptions))
.SetRequestDelay(TimeSpan.FromSeconds(8))
.Build();
var loginrequest = await api.LoginAsync();
if (loginrequest.Succeeded)
{
MessageBox.Show("logged in");
PullUserPosts("garyvee");
}
else
MessageBox.Show("error logging in!\n" + loginrequest.Info.Message);
}
public static async void PullUserPosts(string usertoscrape)
{
IResult<InstaUser> UserSearch = await api.GetUserAsync(usertoscrape);
lbl_Name.Text ($"USER: {UserSearch.Value.FullName}\n\tFollowers: {UserSearch.Value.FollowersCount} \n\tVerified {UserSearch.Value.IsVerified}");
IResult<InstaMediaList> media = await api.GetUserMediaAsync(usertoscrape, PaginationParameters.MaxPagesToLoad(4));
List<InstaMedia> mediaList = media.Value.ToList();
for (int i = 0; i < mediaList.Count; i++)
{
InstaMedia m = mediaList[i];
if (m != null && m.Caption != null)
{
string captiontext = m.Caption.Text;
if (captiontext != null)
{
if (m.MediaType == InstaMediaType.Image)
{
for (int x = 0; x < m.Images.Count; x++)
{
if (m.Images[x] != null && m.Images[x].URI != null)
{
MessageBox.Show($"\n\t{captiontext}\n\t");
string uri = m.Images[x].URI;
MessageBox.Show($"{uri}\n\t");
}
}
}
}
}
}
}
}
那么我应该怎么做才能让它在标签上显示结果？！
谢谢。
我尝试了什么：
messagebox.show它工作正常
但这不是我想要的。
so what should i do to make it show the results in a label ?!
thank you.
What I have tried:
messagebox.show and it worked fine
but that's not what i want .
推荐答案
USER：{UserSearch.Value.FullName} \ n \ tFollowers：{UserSearch .Value.FollowersCount} \ n\tVerified {UserSearch.Value.IsVerified}）;
IResult< InstaMediaList> media = await api.GetUserMediaAsync（usertoscrape，PaginationParameters.MaxPagesToLoad（4））;
列表< InstaMedia> mediaList = media.Value.ToList（）;
"USER: {UserSearch.Value.FullName}\n\tFollowers: {UserSearch.Value.FollowersCount} \n\tVerified {UserSearch.Value.IsVerified}"); IResult<InstaMediaList> media = await api.GetUserMediaAsync(usertoscrape, PaginationParameters.MaxPagesToLoad(4)); List<InstaMedia> mediaList = media.Value.ToList();
public partial class Form1 : Form
{
private const string username = "";
private const string password = "";
private static UserSessionData user;
private static IInstaApi api;
private void Form1_Load(object sender, EventArgs e)
{
user = new UserSessionData();
user.UserName = username;
user.Password = password;
Login();
//lbl_Name.Text =
USER：{UserSearch.Value.FullName} \ n \ tFollowers;
}
public Form1（）
{
InitializeComponent（）;
}
private void Btn_Search_Click（object sender，EventArgs e）
{
}
public static async void Login（）
{
api = InstaApiBuilder.CreateBuilder（）
.SetUser（user）
.UseLogger（new DebugLogger（LogLevel.Exceptions））
.SetRequestDelay（TimeSpan.FromSeconds（8））
.Build（）;
var loginrequest = await api.LoginAsync（）;
if（loginrequest.Succeeded）
{
MessageBox.Show（登录）;
PullUserPosts（garyvee）;
}
else
MessageBox.Show（登录错误！\ n+ loginrequest.Info.Message）;
}
public static async void PullUserPosts（string usertoscrape）
{
IResult< InstaUser> UserSearch = await api.GetUserAsync（usertoscrape）;
lbl_Name.Text（
"USER: {UserSearch.Value.FullName}\n\tFollowers"; } public Form1() { InitializeComponent(); } private void Btn_Search_Click(object sender, EventArgs e) { } public static async void Login() { api = InstaApiBuilder.CreateBuilder() .SetUser(user) .UseLogger(new DebugLogger(LogLevel.Exceptions)) .SetRequestDelay(TimeSpan.FromSeconds(8)) .Build(); var loginrequest = await api.LoginAsync(); if (loginrequest.Succeeded) { MessageBox.Show("logged in"); PullUserPosts("garyvee"); } else MessageBox.Show("error logging in!\n" + loginrequest.Info.Message); } public static async void PullUserPosts(string usertoscrape) { IResult<InstaUser> UserSearch = await api.GetUserAsync(usertoscrape); lbl_Name.Text (
USER：{UserSearch.Value.FullName} \ n \ tFollowers：{UserSearch.Value.FollowersCount} \ n\tVerified { UserSearch.Value.IsVerified}）;
IResult< InstaMediaList> media = await api.GetUserMediaAsync（usertoscrape，PaginationParameters.MaxPagesToLoad（4））;
列表< InstaMedia> mediaList = media.Value.ToList（）;
for（int i = 0; i< mediaList.Count; i ++）
{
InstaMedia m = mediaList [i];
if（m！= null&& m.Caption！= null）
{
string captiontext = m.Caption.Text;
if（captiontext！= null）
{
if（m.MediaType == InstaMediaType.Image）
{
for（int x = 0; x< m.Images.Count; x ++）
{
if（m.Images [x]！= null&& m.Images [x] .URI！= null）
{
MessageBox.Show（
"USER: {UserSearch.Value.FullName}\n\tFollowers: {UserSearch.Value.FollowersCount} \n\tVerified {UserSearch.Value.IsVerified}"); IResult<InstaMediaList> media = await api.GetUserMediaAsync(usertoscrape, PaginationParameters.MaxPagesToLoad(4)); List<InstaMedia> mediaList = media.Value.ToList(); for (int i = 0; i < mediaList.Count; i++) { InstaMedia m = mediaList[i]; if (m != null && m.Caption != null) { string captiontext = m.Caption.Text; if (captiontext != null) { if (m.MediaType == InstaMediaType.Image) { for (int x = 0; x < m.Images.Count; x++) { if (m.Images[x] != null && m.Images[x].URI != null) { MessageBox.Show(
这篇关于在instagram项目中错误'需要对象引用...'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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