Added new kb article collectionview-item-template-adjust-height

Author: KB Bot

knowledge-base/collectionview-item-template-adjust-height.md

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+---
+title: Adjusting Item Template Height in CollectionView for .NET MAUI
+description: Learn how to make the item template in CollectionView for .NET MAUI occupy only the space it uses by removing extra white space.
+type: how-to
+page_title: Removing Extra Space Below Text in CollectionView Item Template
+meta_title: Removing Extra Space Below Text in CollectionView Item Template
+slug: collectionview-item-template-adjust-height
+tags: collectionview, .net maui, item template, minimumheightrequest, itemlength
+res_type: kb
+---
+
+## Environment
+
+| Version | Product | Author | 
+| --- | --- | ---- | 
+| 11.1.0 | Telerik UI for .NET MAUI CollectionView | [Dobrinka Yordanova](https://www.telerik.com/blogs/author/dobrinka-yordanova) | 
+
+
+## Description
+
+I want the item template of the CollectionView to only occupy the space it uses. The extra white space below the text in the item needs to be removed.
+
+This knowledge base article also answers the following questions:  
+- How can I adjust the height of CollectionView items dynamically?  
+- How can I remove the default minimum height set for CollectionView items?  
+- How can I improve performance with fixed item heights in .NET MAUI CollectionView?  
+
+## Solution
+
+To control the height of the item template in CollectionView for .NET MAUI and remove extra white space, follow one of the solutions below:
+
+### Setting a Fixed Height with `ItemLength`
+
+Use the `ItemLength` property of the [CollectionViewLinearLayout](https://docs.telerik.com/devtools/maui/controls/collectionview/layouts/linear-layout) to explicitly define the height of the items:
+
+```XAML
+<telerik:RadCollectionView.ItemsLayout>
+    <telerik:CollectionViewLinearLayout ItemLength="20"/>
+</telerik:RadCollectionView.ItemsLayout>
+```
+
+### Adjusting `MinimumHeightRequest` for Dynamic Sizing
+
+To enable dynamic sizing, set the `MinimumHeightRequest` of the `RadCollectionViewItemView` to 0 using the `ItemViewStyle`:
+
+```XAML
+<telerik:RadCollectionView.ItemViewStyle>
+    <Style TargetType="telerik:RadCollectionViewItemView">
+        <Setter Property="MinimumHeightRequest" Value="0" />
+    </Style>
+</telerik:RadCollectionView.ItemViewStyle>
+```
+
+### Recommendation
+
+If the item size is static, prefer using `ItemLength` as it improves the control's virtualization performance.
+
+## See Also
+
+- [CollectionView Documentation](https://docs.telerik.com/devtools/maui/controls/collectionview/overview)
+- [CollectionViewLinearLayout Overview](https://docs.telerik.com/devtools/maui/controls/collectionview/layouts/linear-layout)