C＃WinForm设置值和DataTable中组合框项目的名称

Question

I want to list fims inside winforms combobox. So am trying to set combobox to have id like value and firm name like item name. Am getting list of firms from mysql database.

SELECT id, name FROM firms

So my code is here:

private void FirmSelect_Load(object sender, EventArgs e)
{
    Firm firm = new Firm(); //db model
    DataTable data = firm.ListAlllFirm();
    FirmComboBox.DataSource = data;
    FirmComboBox.DisplayMember = "name";
}

This work good but i want to set firm id as item value! Does i need to interate DataTable with foreach and manually set it? How can i do that?

Or any other way to do this;

Answer 1

You don't want to Loop Through the collection to Set the ItemValue,

You can use the ValueMember property of the ComboBox for this, Which will allows you to Gets or sets the path of the property to use as the actual value for the items in the ListControl.

This can be done by using the following code:

FirmComboBox.DisplayMember = "name";
FirmComboBox.ValueMember = "id";
FirmComboBox.DataSource = Data;

So that you can access the Value Field by using FirmComboBox.SelectedValue