Microsoft Edge WebView2 Autentificación .NET SharePoint

Question

I have a project with WebView2 and I have to access the SharePoint portal already authenticated. this is my code

///----------------------------------------
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 Microsoft.SharePoint.Client;
using System.Security;

namespace logsharepoint

{
public partial class Form1 : System.Windows.Forms.Form
{
public Form1()
{
InitializeComponent();
}

        private void Form1_Load(object sender, EventArgs e)  
    {  
        string siteCollectionUrl = "https://empresa.sharepoint.com/portal";  
        string userName = "10MEX50AKS@empresa.onmicrosoft.com";  
        string password = "10mex3530414B53X";  
        Form1 obj = new Form1();  
        try  
        {  
            obj.ConnectToSharePointOnline(siteCollectionUrl, userName, password);  
        }  

        catch (Exception ex)  
        {  
            string msg = ex.Message.ToString();  
        }  
        label1.Text = siteCollectionUrl;  
        webView.Source = new System.Uri(siteCollectionUrl, System.UriKind.Absolute);  
    }  

    public void ConnectToSharePointOnline(string siteCollUrl, string userName, string password)  

    {  
        //Namespace: It belongs to Microsoft.SharePoint.Client  
        ClientContext ctx = new ClientContext(siteCollUrl);  
        // Namespace: It belongs to System.Security  
        SecureString secureString = new SecureString();  
        password.ToList().ForEach(secureString.AppendChar);  
        // Namespace: It belongs to Microsoft.SharePoint.Client  
        ctx.Credentials = new SharePointOnlineCredentials(userName, secureString);  
        // Namespace: It belongs to Microsoft.SharePoint.Client  
        Site mySite = ctx.Site;  
        ctx.Load(mySite);  
        ctx.ExecuteQuery();  
    }  
}  

}
///----------------------------------------

but it does not work. sharepoint keeps asking me for authentication

Answer 1

Hi @Anonymous ,
I will recommend you to use CSOM access sharepoint online by following code

string strUserName="abc";  
string strPassword="123";  
SecureString ssPwd = new SecureString();  
strPassword.ToList().ForEach(ssPwd.AppendChar);  
ClientContext context = new ClientContext(siteurl);  
SharePointOnlineCredentials credentials = new SharePointOnlineCredentials(strUserName, ssPwd);  
  
context.Credentials = credentials;  
// The SharePoint web at the URL.  
Web web = context.Web;  
  
// We want to retrieve the web's properties.  
context.Load(web);  
  
// Execute the query to the server.  
context.ExecuteQuery();  

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Answer 2

Hello, thank you very much for your help, I tried your code and the same thing happens.

        private void Form1_Load(object sender, EventArgs e)  
    {  
        string siteCollectionUrl = "https://empresa.sharepoint.com/portal";  
       string userName = "10MEX50AKS@empresa.onmicrosoft.com";  
       string password = "10mex3530414B53X";  
        try  
        {  
            string strUserName = userName;  
            string strPassword = password;  
            SecureString ssPwd = new SecureString();  
            strPassword.ToList().ForEach(ssPwd.AppendChar);  
            ClientContext context = new ClientContext(siteCollectionUrl);  
            SharePointOnlineCredentials credentials = new SharePointOnlineCredentials(strUserName, ssPwd);  

            context.Credentials = credentials;  
            // The SharePoint web at the URL.  
            Web web = context.Web;  

            // We want to retrieve the web's properties.  
            context.Load(web);  

            // Execute the query to the server.  
            context.ExecuteQuery();  
            webView.Source = new System.Uri(web.Url.ToString(), System.UriKind.Absolute);               
        }  
        catch (Exception ex)  
        {  
            string msg = ex.Message.ToString();  

        }  
    }  

Maybe the Webview does not get the authentication or what is going on

        webView.Source = new System.Uri(web.Url.ToString(), System.UriKind.Absolute);      

Answer 3

online Sharepoint is dropping support for basic authentication. you should switch to the msal library to get the bearer tokens.