task -creating dropdownlist boxs and accessing them in c#

Question

create two dropdown listbox called "names" and "id" .the names dropdownlist consist of names like jony,zen,mortin   and id drop downlist consist of id 1,4,5 ....task is when one select a name from name dropdownlist the corresponding id for that name should be visible in id dropdownlist..pls provide code in c#

---

sel.........

Answer 1

Hi, 

Is names and corresponding Id's are in single entity?

  class Item
  {
            public int Id { get; set; }
            public string Name { get; set; }
  }

You can bind this to comboBox as, 

//set the data source for the combobox
//and set Display and value
comboBox1.DisplayMember = "Name";
comboBox1.ValueMember = "Id";
//fill ComboBox2 datasource with display member as ID's

and

   comboBox1.SelectedIndexChanged += OnSelectedIndexChanged;

on event handler

void OnSelectedIndexChanged(object sender, EventArgs e)
{
 comboBox2.SelectedIndex = comboBox2.Items.IndexOf(((Item)comboBox1.SelectedItem).Id);    
}

Hope this helps you...

BTW, check this post for choosing right forum.

---

If this post answers your question, please click "Mark As Answer". If this post is helpful please click "Mark as Helpful".

Answer 2

Hi sa5000174,

On OnSelectedIndexChanged of combo1, you can do this:

void OnSelectedIndexChanged(object sender, EventArgs e)
{
 comboBox2.SelectedIndex = comboBox2.Items.IndexOf(((Item)comboBox1.SelectedItem).Id);    
}

---

Regards, http://shwetamannjain.blogspot.com