asp.net TextBox change Text property

Question

I set my textBox Text property with data loaded from the Database. Later the User enter a new value and click on Save to update this info into the database. My problem is that the textBox.Text never change its value.

My TextBox

When I load the data:

private void loadMyAccount(int id)
{
    var query =  (from u in db.Users
                 where u.Id == id
                 select u).FirstOrDefault();


    // Modal data
    firstNameModal.Text = query.FirstName;

}

My save button call the method to update the FirstName value:

protected void saveProfile_Click(object sender, EventArgs e)
{
    try
    {
        int id = (int)HttpContext.Current.Session["userId"];

        var query = (from u in db.Users
                     where u.Id == id
                     select u).FirstOrDefault();

        query.FirstName = firstNameModal.Text;

        db.SaveChanges();
    } catch(Exception ex)
    {
        Console.Write(ex.ToString());
    }
}

I'm new in webforms, but what am I doing wrong?

Here is my form:


    

    
        
            
                
            
            
                
                      

                    
                        
                            
                                
                                    Full Name:
                                    
                                
                                
                                    Date of Birth
                                    
                                
                                
                                    Gender
                                    
                                
                                
                                    Phone
                                    
                                
                                
                                    Home Address

Code behind:

public partial class Views_MyAccount : System.Web.UI.Page
 {
LibraryEntities db = new LibraryEntities();

protected void Page_Load(object sender, EventArgs e)
{
    if(HttpContext.Current.Session["userId"].Equals(0))
    {
        Response.Redirect("Login.aspx");
    }
    else
    {
        loadMyAccount((int) HttpContext.Current.Session["userId"]);
    }
}

private void loadMyAccount(int id)
{
    var query =  (from u in db.Users
                 where u.Id == id
                 select u).FirstOrDefault();

    UserName.Text = query.FirstName + " " + query.LastName;
    fullName.Text = query.FirstName + query.LastName;
    DateTime dt = (DateTime) query.Dob;
    dob.Text = dt.ToString("MM/dd/yyyy");
    gender.Text = (query.Gender == false ? "Female" : "Male");
    phone.Text = query.Phone;
    homeAddress.Text = query.Address;

    // Modal data
    modalFullName.Text = query.FirstName + " " + query.LastName;
    firstNameModal.Text = query.FirstName;
    lastNameModal.Text = query.LastName;
    dobModal.Text = dt.ToString("MM/dd/yyyy");
    genderModal.Text = (query.Gender == false ? "Female" : "Male");
    phoneModal.Text = query.Phone;
    homeAddressModal.Text = query.Address;
}

protected void myBooks_Click(object sender, EventArgs e)
{

}

protected void saveProfile_Click(object sender, EventArgs e)
{
    try
    {
        int id = (int)HttpContext.Current.Session["userId"];

        var query = (from u in db.Users
                     where u.Id == id
                     select u).FirstOrDefault();

        query.FirstName = firstNameModal.Text;

        db.SaveChanges();
    } catch(Exception ex)
    {
        Console.Write(ex.ToString());
    }
}

}

stackuser83 · Accepted Answer

Double check that the text box and the save profile button are in the same

HTML tag. Usually this is the case when the page is using a site.master file.

After that, try to check the value of the textbox in the different events of the page life cycle using the debugger.

EDIT:

I think you need to wrap the loadMyAccount method in a IsPostBack conditional, something like this:

protected void Page_Load(object sender, EventArgs e)
{
    if(HttpContext.Current.Session["userId"].Equals(0))
    {
        Response.Redirect("Login.aspx");
    }
    else
    {
        if(!IsPostBack)
        {
            loadMyAccount((int) HttpContext.Current.Session["userId"]);
        }
    }
}

That will prevent your Page_Load from overwriting the user's input.

asp.net TextBox change Text property

Answers (1)

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