问题
i want to create a control from a form where i have login textbox and password textbox, and login button. when i will enter the active directory account name and its password i want to go to another form. someone can help me with this please. in this code example i chose the account for login only. i want to chose it and type the password and go the destination form by exemple from form (login) to form (user interface).
private void radiobtnAD_CheckedChanged(object sender, EventArgs e)
{
if (radiobtnAD.Checked)
{
try
{
string filter = "(&(objectCategory=person)(objectClass=user)(!userAccountControl:1.2.840.113556.1.4.803:=2))";
string[] propertiesToLoad = new string[1] { "name" };
using (DirectoryEntry root = new DirectoryEntry("LDAP://DOMAIN"))
using (DirectorySearcher searcher = new DirectorySearcher(root, filter, propertiesToLoad))
using (SearchResultCollection results = searcher.FindAll())
{
foreach (SearchResult result in results)
{
string name = (string)result.Properties["name"][0];
comboBox1.Items.Add(name);
}
}
}
catch
{
}
}
}
回答1:
Here is your code, edited.
- Verify the textboxes (!string.Empty).
- Validate credentials.
- Display the form you want depending on user type.
It is easy as pie, when you correctly split your 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 LibXmlSettings.Settings;
using Microsoft.ApplicationBlocks.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using System.DirectoryServices;
using System.IO;
using System.Linq.Expressions;
using System.Runtime.InteropServices;
using System.DirectoryServices.AccountManagement;
namespace GestionnaireDesPlugins
{
public partial class Login : Form
{
public Login(string accountName, string accountPassword)
{
InitializeComponent();
}
private void LoginOnClick(object sender, EventArgs e)
{
if (IsValid())
{
GetUser();
// Do whatever you want
ShowForm();
}
}
private void GetUser()
{
try
{
LdapConnection connection = new LdapConnection("AD");
NetworkCredential credential = new NetworkCredential(txtboxlogin.Text, txtboxpass.Text);
connection.Credential = credential;
connection.Bind();
}
catch (LdapException lexc)
{
String error = lexc.ServerErrorMessage;
MessageBox.Show("error account or password.");
}
catch (Exception exc)
{
MessageBox.Show(exc.ToString());
}
}
private bool IsValid()
{
// Check if the user haven't chosen an account
if (!string.IsNullOrEmpty(txtboxlogin.Text) { return false; }
// Check if the user haven't chosen an account
if (!string.IsNullOrEmpty(txtboxpass.Text)) { return false; }
// Check if the user haven't chosen an account
if (!string.IsNullOrEmpty(comboBox1.Text)) { return false; }
// Check if the password TextBox is empty
if (!string.IsNullOrEmpty(textBox1.Text)) { return false; }
using(PrincipalContext pc = new PrincipalContext(ContextType.Domain, "YOURDOMAIN"))
{
// validate the credentials
bool isValid = pc.ValidateCredentials(txtboxlogin.Text, txtboxpass.Text);
}
return isValid;
}
private void ShowForm()
{
if (txtboxlogin.Text == "WantedAdminUser")
{
using (AdminForm form2 = new AdminForm())
form2.ShowDialog();
Show();
}
else
{
using (user userform = new user())
userform.ShowDialog();
Show();
}
}
}
}
As said previously, as you are new in C#, here are some advice:
- Split your code: methods must be short and separated by purpose. It's easier for you and for any who works on your code
- Manage the exception
- Dispose objects
- Take care about this
txtboxlogin.Text == "WantedAdminUser"it's dangerous.
回答2:
So you have a form with ComboBox filled with account names, a TextBox for password input, and a Button for opening the new form.
Set the TextBox's property PasswordChar to desired mask character:
textBox1.PasswordChar = '*';
Create a new click method for your login-button by double clicking it in the designer. It should create a new handler:
private void loginButton_Click(object sender, EventArgs e)
{
// Check if the user haven't chosen an account
if (comboBox1.Text == "") { return; }
// Check if the password TextBox is empty
if (textBox1.Text == "") { return; }
// Create a new method for checking the account and password, which returns a bool
bool loginSuccess = CheckUserInput(comboBox1.Text.Trim(), textBox1.Text);
if (loginSuccess)
{
// Create a new instance of your user-interface form. Give the account name and password
// to it's constructor
UserForm newForm = new UserForm(comboBox1.Text.Trim(), textBox1.Text.Trim()))
// Show the created UserForm form
newForm.Show();
// Close this login form
this.Close();
}
}
Edit your UserForm form constructor to take 2 string parameters:
public UserForm(string accountName, string accountPassword)
{
InitializeComponent();
// ...
}
Adding the 2 string parameters is optional. Hope this answered your question.
Example of "CheckUserInput":
private bool CheckUserInput(string account, string password)
{
// your conditions...
return true;
}
回答3:
this is the code of my app :
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 LibXmlSettings.Settings;
using Microsoft.ApplicationBlocks.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using System.DirectoryServices;
using System.IO;
using System.Linq.Expressions;
using System.Runtime.InteropServices;
using System.DirectoryServices.AccountManagement;
namespace GestionnaireDesPlugins
public partial class Login : Form
{
public Login(string accountName, string accountPassword)
{
InitializeComponent();
}
private void btnLogin_Click(object sender, EventArgs e)
{
using (var context = new PrincipalContext(ContextType.Domain, "Domain"))
{
using (var searcher = new PrincipalSearcher(new UserPrincipal(context)))
{
foreach (var result in searcher.FindAll())
{
DirectoryEntry de = result.GetUnderlyingObject() as DirectoryEntry;
comboBox1.Items.Add(de.Properties["samAccountName"].Value);
comboBox1.Sorted = true;
}
}
}
// Check if the user haven't chosen an account
if (comboBox1.Text == "") { return; }
// Check if the password TextBox is empty
if (textBox1.Text == "") { return; }
// Create a new method for checking the account and password, which returns a bool
bool loginSuccess = CheckUserInput(comboBox1.Text.Trim(), textBox1.Text);
if (loginSuccess)
{
// Create a new instance of your user-interface form. Give the account name and password
// to it's constructor
UserForm newForm = new UserForm(comboBox1.Text.Trim(), textBox1.Text.Trim()))
// Show the created UserForm form
newForm.Show();
// Close this login form
this.Close();
}
}
}
回答4:
i solved what i was looking for
private void btnLogin_Click(object sender, EventArgs e)
{
try
{
LdapConnection connection = new LdapConnection("AD");
NetworkCredential credential = new NetworkCredential(txtboxlogin.Text, txtboxpass.Text);
connection.Credential = credential;
connection.Bind();
MessageBox.Show("You are log in");
Hide();
if (txtboxlogin.Text == "WantedAdminUser")
{
using (AdminForm form2 = new AdminForm())
form2.ShowDialog();
Show();
}
else
{
using (user userform = new user())
userform.ShowDialog();
Show();
}
}
catch (LdapException lexc)
{
String error = lexc.ServerErrorMessage;
MessageBox.Show("error account or password.");
}
catch (Exception exc)
{
MessageBox.Show(Convert.ToString(exc));
}
来源：https://stackoverflow.com/questions/22916260/c-sharp-winform-active-directory-acces-to-another-form-if-login-succes