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    <p>If you are binding the DataGridView to a collection, then you can set the default value of the boolean property to true on the object, add the object to the BindingList collection, and set the collection to the DataGridView's data source.</p> <p>For example, the collection to bind to the DataGridView would contain the properties needed (each property representing a column), including a boolean property to represent the checkbox column. Here is an example of what the class would look like:</p> <pre><code>public class Product : INotifyPropertyChanged { private bool _selected; private string _product; public event PropertyChangedEventHandler PropertyChanged; public Product(string product) { _selected = true; _product = product; } public bool Selected { get { return _selected; } set { _selected = value; this.NotifyPropertyChanged("Selected"); } } public string ProductName { get { return _product; } set { _product = value; this.NotifyPropertyChanged("Product"); } } private void NotifyPropertyChanged(string name) { if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(name)); } } </code></pre> <p>Within the form that contains the DataGridView, you can add your items to a BindingList and bind that collection to the DataGridView:</p> <pre><code>public partial class Form1 : Form { public Form1() { InitializeComponent(); InitGrid(); } private void InitGrid() { dgProducts.AutoGenerateColumns = true; BindingList&lt;Product&gt; products = new BindingList&lt;Product&gt;(); products.Add(new Product("Eggs")); products.Add(new Product("Milk")); products.Add(new Product("Bread")); products.Add(new Product("Butter")); dgProducts.DataSource = products; } } </code></pre> <p>This is just a quick and dirty example, but shows how you can set default values to an object, add that object to a BindingList, then add it to the DataGridView.</p> <p>To add items after the list has been bound you can always access the DataSource collection and add to it (the sample code below assumes a button is added to the form and wired to the click event shown below, as well as a textbox named, newItemName):</p> <pre><code> private void addItemButton_Click(object sender, EventArgs e) { BindingList&lt;Product&gt; products = dgProducts.DataSource as BindingList&lt;Product&gt;; products.Add(new Product(newItemName.Text)); } </code></pre>
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    1. USLori Lalonde - MSFT
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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