Show the DisplayMember according to the ValueMember combobox C#

Question

I have code that takes data from database, and I get the valuemember as the selected value of combobox, now I want to make it that the combobox to show the item selected according to the valuemember.

Example

normal combo

Car -> 1
House -> 2
Tree - >3 


after sql valuemember value is 3

Tree
Car
House

Answer 1

If you have something like this:

var dt = new DataTable();
dt.Columns.Add("D");
dt.Columns.Add("V", typeof(int));
dt.Rows.Add("Car", 1);
dt.Rows.Add("House", 2);
dt.Rows.Add("Tree", 3);

You can:

someCombo.DisplayMember = "D";
someCombo.ValueMember = "V";
someCombo.DataSource = dt;

And then later, after the user has chosen something, you can:

int x = (int)someCombo.SelectedValue;

Or you can:

DataRow r = ((DataRowView)someCombo.SelectedItem).Row;
var d = r["D"] as string;
var v = (int)r["V"];

And so on..