# TreeListColumnGroupBuilder

## Properties

### Column - [TreeListColumnGroup](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui/treelistcolumngroup)

Gets the columns in the group

## Methods

### Title(System.String)

Sets the title displayed in the header of the column.

#### Parameters

##### text - `System.String`

The text.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID).Title("ID"))
             )
             
```

### HeaderHtmlAttributes(System.Object)

Sets the HTML attributes applied to the header cell of the column.

#### Parameters

##### attributes - `System.Object`

The attributes.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .HeaderHtmlAttributes(new {@class="order-header"})
                )
             )
             
```

### HeaderHtmlAttributes(System.Collections.Generic.IDictionary)

Sets the HTML attributes applied to the header cell of the column.

#### Parameters

##### attributes - `System.Collections.Generic.IDictionary<String,Object>`

The attributes.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .HeaderHtmlAttributes(new {@class="order-header"})
                )
             )
             
```

### Locked()

Makes the column static. By default all columns are not locked.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .Locked()
                )
             )
             
```

### Locked(System.Boolean)

Makes the column static or not. By default all columns are not locked.

#### Parameters

##### value - `System.Boolean`

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .Locked((bool)ViewData["locked"])
                )
             )
             
```

### Lockable(System.Boolean)

If set to false the column will remain in the side of the grid into which its own locked configuration placed it.

#### Parameters

##### value - `System.Boolean`

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .Lockable((bool)ViewData["lockable"])
                )
             )
             
```

### Hidden(System.Boolean)

Makes the column hidden or not. By default all columns are not hidden. Hidden columns are rendered in the output HTML but are hidden.

#### Parameters

##### value - `System.Boolean`

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .Hidden((bool)ViewData["hidden"])
                )
             )
             
```

### Hidden()

Makes the column hidden or not. By default all columns are not hidden. Hidden columns are rendered in the output HTML but are hidden.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
             @(Kendo().TreeList<OrderViewModel>()
                .Name("TreeList")
                .Columns(columns => columns.Bound(o => o.OrderID)
                    .Hidden((bool)ViewData["hidden"])
                )
             )
             
```

### Columns(System.Action)

The columns configuration for the [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder)

#### Parameters

##### configurator - System.Action<[TreeListColumnFactory](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumnfactory)>

The action defining the configuration.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
            	@(Html.Kendo().TreeList<OrderViewModel>()
            	    .Name("treelist")
            		.Columns(columns =>
            		{
            			columns.Add();
            		})
            	)
             
```

### HeaderTemplate(System.String)

Sets the header template for the column. If sorting is enabled, the template content wrapper must have a k-link CSS class.

#### Parameters

##### template - `System.String`

The string defining the template.

#### RETURNS

Returns the current [TreeListColumnGroupBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/treelistcolumngroupbuilder) instance.

#### Example

```
 
            	@(Html.Kendo().TreeList<OrderViewModel>()
            	    .Name("treelist")
            		.Columns(columns =>
            		{
            			columns.Add().HeaderTemplate("HeaderTemplate");
            		})
            	)
             
```