How can I set selected in a ComboBox, based on ValueMember?

Question

I have a combobox with the following structure. Also, I am getting a fld_id from another source and based on that id I need to select the corresponding item in the ComboBox. How can I do that?

comboBoxCustomers.DataSource = customers;

comboBoxCustomers.ValueMember = "fld_id";

comboBoxCustomers.DisplayMember = "fld_name";

Example:

List could contain these items

fld_id   fld_name

65       Item1

68       Item2

69       Item3

I need to set Item 68 as selected.

What do you meany by *I am getting a fld_id from another source and based on that id I need to select the corresponding item in the ComboBox*? Post some more code to show how you get `fld_id`? Is that a property? — Sriram Sakthivel, Aug 04 '14 at 09:07
It doesn't matter where it comes from. I just need to select the item with that id as valuemember — Alexandru Pupsa, Aug 04 '14 at 09:10
what happens when you: `var selected = comboBoxCustomers.SelectedValue;` ? — Apostrofix, Aug 04 '14 at 09:13
Actually, it matters! If it is a property you can use [binding to bind it as shown here](http://stackoverflow.com/a/25030968/2530848). Though am not sure whether it will work in this scenario. — Sriram Sakthivel, Aug 04 '14 at 09:14
@Apostrofix NO! I need to set it as selected. There is nothing selected. I am building the ComboBox — Alexandru Pupsa, Aug 04 '14 at 09:14
okay, so if i understood you correctly, this should help you: http://stackoverflow.com/questions/2864065/c-sharp-set-combo-item-with-selectedvalue — Apostrofix, Aug 04 '14 at 09:19

score 8 · Accepted Answer · answered Aug 04 '14 at 09:27

8

Use Following:

comboBoxCustomers.SelectedValue = fld_id(which you are getitng from another source)

answered Aug 04 '14 at 09:27

Tithi Patel

777
4
21

score 8 · Answer 2 · answered Jul 28 '16 at 16:58

8

I don't have enough reputation to post a comment. This:

comboBoxCustomers.SelectedValue = fld_id

works great :) But AFTER showing the form, otherwise it will fail.

answered Jul 28 '16 at 16:58

LuisEduardoSP

401
5
11

score 0 · Answer 3 · answered Jan 16 '19 at 13:16

if you use datasource of the combobox, you can cast the datasource back to the list, find the item and use that item to set the selected item:

var stores = cbxStores.DataSource as List<store>;
var store = stores.Where(w => w.store_code == _station.store_code).FirstOrDefault();
cbxStores.SelectedItem = store;

score 0 · Answer 4 · edited Jan 14 '20 at 18:17

Simplest procdure I found for myself:

You can bind it into some function with perameters while funtion is called.

Hope it is going to help you guys:

int Idd = Convert.ToInt32(your value for the combobox  you want to be selected);
for (int i = 0; i < myComboBox.Items.Count; i++)
{
    myComboBox.SelectedIndex = i;
    if (Convert.ToInt32( myComboBox.SelectedValue ) == Idd )
        {break;}                   
}

How can I set selected in a ComboBox, based on ValueMember?

4 Answers4