How to Programmatically Add Text and Value to a C# WinForms ComboBox without Binding?

Add text and value to ComboBox programmatically

In C# WinApp, you can add text and values ​​to a ComboBox's items without using a binding source.

To do this, you can create your own class type and override the ToString() method to return the desired text. For example, consider the following class:

<code class="language-csharp">public class ComboboxItem
{
    public string Text { get; set; }
    public object Value { get; set; }

    public override string ToString()
    {
        return Text;
    }
}</code>

This class allows you to specify the display text and associated value for each item in the ComboBox.

To use this class, follow these steps:

1. Instantiate a ComboboxItem object.
2. Set the Text property to the desired display text.
3. Set the Value property to the associated value.
4. Add the ComboboxItem object to the ComboBox's Items collection.

For example:

<code class="language-csharp">private void Test()
{
    ComboboxItem item = new ComboboxItem();
    item.Text = "Item text1";
    item.Value = 12;

    comboBox1.Items.Add(item);

    comboBox1.SelectedIndex = 0;

    MessageBox.Show((comboBox1.SelectedItem as ComboboxItem).Value.ToString());
}</code>

By following these steps, you can dynamically add items with text and values ​​to a ComboBox without using a binding source.

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