i am using an ASP control Login and i want to redirect the user logged in depending on its role. But it seems like The User take the previous value of the last logged in user. seems problem of refresh the current user or something like this
Code of my webform1.aspx.cs:
protected void Login1_LoggedIn(object sender, EventArgs e)
{
TextBox1.Text = Context.User.Identity.Name.ToString();
if (Context.User.IsInRole("admin"))
{
Response.Redirect("~/admin.aspx");
}
else if (User.IsInRole("user"))
{
Response.Redirect("~/user.aspx");
}
}
Inside LoggedIn event of Login control, principal object hasn't been attached to the current HttpContext yet.
Therefore, you cannot use Context.User inside LoggedIn event.
protected void Login1_LoggedIn(object sender, EventArgs e)
{
var roles = Roles.GetRolesForUser(Login1.Username);
if (roles.Contains("admin"))
{
Response.Redirect("~/admin.aspx");
}
else if (User.IsInRole("user"))
{
Response.Redirect("~/user.aspx");
}
}
Related
I am working on a windows Forms Application and trying to validate few textboxes using errorproviders but the problem is when I am clicking on a button present in Tab 1, all the textboxes even present on a different tabs gets validated. I want the validation to occur for textboxes present on the current tab and not on any control present on any other tab. How can I achieve this? Please help. Below is the code related to validation in the click event.
private void btnCreateUser_Click(object sender, EventArgs e)
{
if (this.ValidateChildren(ValidationConstraints.Enabled))
{
// Some Code here
}
}
Below is code used for validating and validated event for one textbox. I am using similar code for other textboxes as well present on other tabs.
private void txtFirstNm_Validating(object sender, CancelEventArgs e)
{
bool cancel = false;
if (txtFirstNm.Text.Trim().Length == 0)
{
cancel = true;
errorProvider1.SetError(txtFirstNm,"Please enter First Name");
}
else
{
cancel = false;
errorProvider1.SetError(txtFirstNm, "");
}
e.Cancel = cancel;
}
private void txtFirstNm_Validated(object sender, EventArgs e)
{
errorProvider1.SetError(txtFirstNm,"");
}
The Scenario that is given in my question can be handled by using below code. We can use the ValidationConstraint as Visible and this will make sure that Validation occurs on the Current visible Controls.
private void btnCreateUser_Click(object sender, EventArgs e)
{
if (this.ValidateChildren(ValidationConstraints.Visible))
{
// Some Code here
}
}
I have created 3 folders to manage users in ASP.NET and i also created 3 roles by the name of officer, user and admin.now based on the following code user can redirect to specific page, but now the problem is that i can't see the username after login which were added using loginName and LoginStatus automatically change from logout to login. it seems that user did not log in and asking to log in again. (funny problem.....)
protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
{
if (Membership.ValidateUser(Login1.UserName, Login1.Password))
{
//Perform setting cookie information
e.Authenticated = true;
if (Roles.IsUserInRole(Login1.UserName, "r_admin"))
{
Response.Redirect("admin/default.aspx");
}
if (Roles.IsUserInRole(Login1.UserName, "r_officer"))
{
Response.Redirect("~/officer/default.aspx");
}
if (Roles.IsUserInRole(Login1.UserName, "r_user"))
{
Response.Redirect("~/user/default.aspx");
}
}
Try moving the Response.Redirect instructions to the LoggedIn event, instead of the Authenticate event.
on your login control add the Loggedin event like this:
<asp:Login id="Login1" runat="server" OnLoggedIn="Login1_OnLoggedIn"></asp:Login>
and in the code behind:
protecetd void Login1_OnLoggedIn(object sender, EventArgs e)
{
if (Roles.IsUserInRole(Login1.UserName, "r_admin"))
{
Response.Redirect("admin/default.aspx");
}
if (Roles.IsUserInRole(Login1.UserName, "r_officer"))
{
Response.Redirect("~/officer/default.aspx");
}
if (Roles.IsUserInRole(Login1.UserName, "r_user"))
{
Response.Redirect("~/user/default.aspx");
}
}
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.login.loggedin.aspx
I want to get the username after login but it doesn't work.
public partial class Login : System.Web.UI.Page
{
string strUser;
protected void Login1_LoggedIn(object sender, EventArgs e)
{
strUser = Membership.GetUser().UserName;
Response.Redirect("Home");
}
protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
{
strUser = Membership.GetUser().UserName;
Response.Redirect("Home");
}
}
This is my error:
Membership.GetUser().UserName is null, because the new principal object is not attached to the current HttpContext object yet.
So you need to explicitly retrieve that recently logged-in user using username from Login control.
Update: Credit to jadarnel27
protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
{
// Get the username from login control and retrieves the user info explicitly
Membership user = Membership.GetUser(Login1.Username);
...
}
You need to check and make sure the user's login was successful. It looks like you're just using standard ASP.NET membership, so this should work:
protected void Login1_Authenticate(object sender, AuthenticateEventArgs e)
{
if(e.Authenticated)
{
strUser = Membership.GetUser().UserName;
Response.Redirect("Home");
}
else
{
strUser = "Login Failed!";
}
}
It's been a while since I worked with these controls, but you might need to determine the value of e.Authenticated yourself first and set it. If so, you need to put this before the if-block I wrote above:
bool authenticated = Membership.ValidateUser(Login1.UserName, Login1.Password);
e.Authenticated = authenticated;
I think vanilla ASP.NET membership handles that part for you; if you were using a custom authentication scheme, you would definitely need to do that step.
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
Response.Cache.SetCacheability(HttpCacheability.NoCache );
Response.Cache.SetAllowResponseInBrowserHistory(false);
}
This code i have used to authenticate the website,its working but only when the user copies the url and paste it in a new window,but opening in the new window leads to the next page without any login credentials.
For authentication:
In page_Load Events
if (session(user_id) != null) {
response.redirect("the_page_which_you_want_to_go.aspx");
} else {
response.redirect("Login.aspx");
}
I have a page Product.aspx,there I have a user control ProductDisplay.ascx which has been created by drag and drop.
Now when a button is clicked in ProductDisplay.ascx,I want a logging function to be called which is in Product.aspx.
To achieve this I have used delegates
on ProductDisplay.ascx
public delegate void LogUserActivity(ProductService objService);
public event LogUserActivity ActivityLog;
on Product.aspx
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ProductDisp.ActivityLog += new User_UserControl_ProductDisplayBox.LogUserActivity(LogProduct);
}
}
Now button click event of ProductDisplay.ascx
protected void imgBtnBuyNow_Click(object sender, ImageClickEventArgs e)
{
if (ActivityLog != null)
{
ActivityLog(Product);
}
Response.Redirect("~/User/ShoppingCart.aspx");
}
My problem is that whenever i click this button ActivityLog is null.Why is it null?
My idea is that once i click this button,page posts back and its previous state is lost.
Please help me out with a reason and solution.
Secondly,I want to do away with null checking
**if (ActivityLog != null)**
{
ActivityLog(Product);
}
I saw some code which instantiates a delegate with a default value the moment it is declared,but i was not able to find it.Please help.
I have found solution to first problem
if (!IsPostBack)
{
ProductDisp.ActivityLog += new User_UserControl_ProductDisplayBox.LogUserActivity(LogProduct);
}
This was causing the issue.Move this line
ProductDisp.ActivityLog += new User_UserControl_ProductDisplayBox.LogUserActivity(LogProduct);
out of if (!IsPostBack)