How to create buttons dynamically?

Ponch Robles

As I can create buttons automatically depending on the user who logs in, for example an administrator user is of type administrator and has all the privileges, then the admin user when login in the form should generate the privileges like buttons, how can it be done?

My login code:

 private void button1_Click(object sender, EventArgs e) { if (txtUser.Text == "" || txtContrasenna.Text == "") { MessageBox.Show("Please provide UserName and Password"); return; } try { //Create SqlConnection SqlConnection con = new SqlConnection(cs); SqlCommand cmd = new SqlCommand("Select * from Users where NameUser=@nameuser and Password=@password", con);                     cmd.Parameters.AddWithValue("@nameuser", txtUser.Text);                     cmd.Parameters.AddWithValue("@password", txtContrasenna.Text);                     con.Open(); SqlDataAdapter adapt = new SqlDataAdapter(cmd); DataTable ds = new DataTable();                     adapt.Fill(ds);                     con.Close(); // int count = ds.Tables[0].Rows.Count; //If count is equal to 1, than show frmMain form if (ds.Rows.Count == 1) { switch (ds.Rows[0]["UserTypeId"] as int?) { case 1: { this.Hide(); Menus.MenuSuperUser ss = new Menus.MenuSuperUser();                                     ss.Show(); // MessageBox.Show("MAMALON"); break; } case 2: { this.Hide(); PantallasUsers.DashboardVendedor ss = new PantallasUsers.DashboardVendedor();                                     ss.Show(); break; } default: { MessageBox.Show("NOTBABY"); break; } } } else { MessageBox.Show("Algo esta mal, revisa tus datos."); } } catch (Exception ex) { MessageBox.Show(ex.Message); }

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Panna Chatterjee9y ago
private void btnSignIn_Click(object sender, EventArgs e) //IF CERTAIN USER AND PASSWORD PRESENT YOU CAN HAVE DYNAMIC BUTTON
{
try
{
using (var con = ConnectionClass.getConnection())
{
SqlCeCommand cmd = new SqlCeCommand("select count(*) from LogIn where UserName='" + txtUserName.Text.ToString() + "' and Password='" + txtPassword.Text.ToString() + "'", con);
//con.Open();
int no = Convert.ToInt32(cmd.ExecuteScalar());

if (no >= 1)
{
//SRIVMMIS.SriVidyaaMandir svm = new SRIVMMIS.SriVidyaaMandir();
//JAIMIS.JaiMIS jm = new JAIMIS.JaiMIS();
//FarmerTest2.Form1 fm = new FarmerTest2.Form1();
//this.Hide();
//fm.Show();
CreateDynamicButton(); //CALL DYNAMIC BUTTON CREATION FUNCTION
}
else
{
MessageBox.Show("Either Incorrect User Name Or Password");
ClearContent();

}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message.ToString());

}
}
//DYNAMIC BUTTON
private void CreateDynamicButton()
{
// Create a Button object
Button dynamicButton = new Button();
// Set Button properties
dynamicButton.Height = 40;
dynamicButton.Width = 120;
dynamicButton.BackColor = Color.Aqua;
dynamicButton.ForeColor = Color.Blue;
dynamicButton.Location = new Point(20, 150);
dynamicButton.Text = "Dynamic";
dynamicButton.Name = "DynamicButton";
dynamicButton.Font = new Font("Georgia", 16);
// Add a Button Click Event handler
dynamicButton.Click += new EventHandler(DynamicButton_Click);
// Add Button to the Form. Placement of the Button
// will be based on the Location and Size of button
Controls.Add(dynamicButton);
}
//
/// Button click event handler
///
///
///
private void DynamicButton_Click(object sender, EventArgs e)
{
MessageBox.Show("Dynamic button is clicked");
}
Ramesh Palanivel9y ago
Hi Ponch,

Yes, Create all administraotr and user buttons in same form and hide the buttons while user logging the application and show the privileges button if administrator logged in..
Nitin Sontakke9y ago
I am not sure if I understand your question clearly, but why not just enable / disable depending on logged in user instead of creating it.