# Unbound Mode

When in unbound mode, **RadListView** doesn't use a data source to generate its content. In this mode, you need to add items either at design time, or at run time.

## Adding Items at Design Time

Adding items to **RadListView** at design time is possible through the **Items** collection of the control. This collection is accessible by using the **Smart Tag** or the **Items** collection property in the property grid. Further information is available in the [Adding Items](https://www.telerik.com/products/winforms/documentation/controls/listview/working-with-design-time/adding-items) help article.

## Adding Items at Run Time

The items in **RadListView** are stored in a collection that is accessible through the **Items** property. Items can be added to **RadListView** using one of the overloads of the **Add** method.

#### Adding items

```C#
this.radListView1.Items.Add(new ListViewDataItem("Item 1"));
this.radListView1.Items.Add("Item 2");
```

```VB.NET
Me.RadListView1.Items.Add(New ListViewDataItem("Item 1"))
Me.RadListView1.Items.Add("Item 2")
```

## Adding Columns

When in [DetailsView](https://www.telerik.com/products/winforms/documentation/controls/listview/views), **RadListView** displays columns. The columns are stored in a collection that is accessible through the **Columns** property. Columns can be added to **RadListView** using one of the three overloads of the **Add** method as it is shown below. Each column must have a unique name because columns are distinguished by their **Name** property.

#### Adding columns

```C#
this.radListView1.Columns.Add("Column1");
this.radListView1.Columns.Add("Column2", "Column2Header");
this.radListView1.Columns.Add(new ListViewDetailColumn("Column3", "Column3Header"));
```

```VB.NET
Me.RadListView1.Columns.Add("Column1")
Me.RadListView1.Columns.Add("Column2", "Column2Header")
Me.RadListView1.Columns.Add(New ListViewDetailColumn("Column3", "Column3Header"))
```

You can set cell values to the items of **RadListView** using their indexers. The keys can be either the index of the column, the name of the column, or the column itself.

#### Populating cells

```C#
ListViewDataItem item = new ListViewDataItem();
//it is important that you add the item to the control prior assigning its cell's values, so it will have its cells schema
radListView1.Items.Add(item);

item[0] = "CellValue1";
item["Column2"] = "CellValue2";
item[radListView1.Columns[2]] = "CellValue3";
```

```VB.NET
Dim item As ListViewDataItem = New ListViewDataItem()
'it is important that you add the item to the control prior assigning its cell's values, so it will have its cells schema
RadListView1.Items.Add(item)

item(0) = "CellValue1"
item("Column2") = "CellValue2"
item(RadListView1.Columns(2)) = "CellValue3"
```

> important To use these indexers, the item must have a valid owner e.g. it first has to be added to the **Items** collection of **RadListView**.

It is possible to add columns at design time as well by either using the **Smart Tag** or the **Columns** collection in the *Properties* section in Visual Studio. Further information is available in the [Adding Columns](https://www.telerik.com/products/winforms/documentation/controls/listview/working-with-design-time/adding-columns)  help article.

## Adding Groups

Aside from using **GroupDescriptors**, custom groups can also be added to **RadListView**. This is done by using the **Add** method of the **Groups** collection of **RadListView**.

#### Adding groups

```C#
this.radListView1.Groups.Add(new ListViewDataItemGroup("First Group"));
this.radListView1.Groups.Add(new ListViewDataItemGroup("Second Group"));
```

```VB.NET
Me.RadListView1.Groups.Add(New ListViewDataItemGroup("First Group"))
Me.RadListView1.Groups.Add(New ListViewDataItemGroup("Second Group"))
```

In order to assign an item to a group, you should set the item’s **Group** property:

#### Assign item to a group

```C#
this.radListView1.Items[0].Group = this.radListView1.Groups[0];
this.radListView1.Items[1].Group = this.radListView1.Groups[0];
this.radListView1.Items[2].Group = this.radListView1.Groups[1];
this.radListView1.Items[3].Group = this.radListView1.Groups[1];
```

```VB.NET
Me.RadListView1.Items(0).Group = Me.RadListView1.Groups(0)
Me.RadListView1.Items(1).Group = Me.RadListView1.Groups(0)
Me.RadListView1.Items(2).Group = Me.RadListView1.Groups(1)
Me.RadListView1.Items(3).Group = Me.RadListView1.Groups(1)
```

In order to enable this kind of grouping the **EnableCustomGrouping** property needs to be set to *true*. In order to display the groups, the **ShowGroups** property needs to be set to *true*.

You can check which items belong to a given group by iterating trough the **Items** collection of a **ListViewDataItemGroup**.

It is possible to add groups at design time as well by either using the **Smart Tag** or the **Groups** collection in the *Properties* section in Visual Studio. Further information is available in the [Adding Groups](https://www.telerik.com/products/winforms/documentation/controls/listview/working-with-design-time/adding-groups) help article.

## See Also

* [Data Binding](https://www.telerik.com/products/winforms/documentation/controls/listview/populating-with-data/data-binding)
* [Adding Groups](https://www.telerik.com/products/winforms/documentation/controls/listview/working-with-design-time/adding-groups)
* [Adding Columns](https://www.telerik.com/products/winforms/documentation/controls/listview/working-with-design-time/adding-columns)
* [Selection](https://www.telerik.com/products/winforms/documentation/controls/listview/features/selection)