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| Prepare Financial Reports | Samantha Bright | 4/7/2018 | 4/7/2018 | Medium |
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| Report On Tranistion to Touch-Based Apps | James Anderson | 10/13/2017 | 10/13/2017 | High |
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| New Brochures | Arnie Schwartz | 5/9/2017 | 1/30/2018 | Low |
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| Tradeshow Marketing Message | Dallas Lou | 8/13/2017 | 4/23/2018 | Medium |
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| Collect Customer Reviews for Website | Mary Stern | 1/28/2018 | 11/19/2017 | High |
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| Online Sales Report | Nat Maguiree | 7/5/2017 | 9/29/2017 | Low |
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| Reschedule Sales Team Meeting | Lincoln Bartlett | 9/25/2017 | 1/17/2018 | Medium |
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| Submit D&B Number to ISP for Credit Approval | Sammy Hill | 7/6/2017 | 2/20/2018 | High |
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| Decide On Mobile Devices Used in the Field | Morgan Kennedy | 9/26/2017 | 9/12/2017 | Low |
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| Follow Up with West Coast Stores | Clark Morgan | 12/22/2017 | 3/1/2018 | Medium |
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| Brochure Design Review | Barb Banks | 12/13/2017 | 11/20/2017 | High |
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| Improve Internal Document Management | Karen Goodson | 2/17/2018 | 4/21/2018 | Low |
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| Create R&D Plans | Jim Packard | 10/14/2017 | 9/10/2017 | Medium |
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| Review Articles | Brett Wade | 2/12/2018 | 3/23/2018 | High |
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| Approve Vacation Request Form | Amelia Harper | 11/12/2017 | 8/5/2017 | Low |
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| Approve Overtime Pay | Terry Bradley | 3/8/2018 | 12/11/2017 | Medium |
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| Send Territory Sales Breakdown | Arthur Miller | 12/16/2017 | 2/4/2018 | High |
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| Publish New Art on the Server | Antony Remmen | 6/9/2017 | 12/13/2017 | Low |
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| Determine New Online Marketing Strategy | Billy Zimmer | 7/14/2017 | 10/3/2017 | Medium |
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| Review Overtime Report | Stu Pizaro | 6/5/2017 | 4/16/2018 | High |
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Data grid with 129 rows and 6 columns
0 rows are selected
You can use the GridDevExtremeDataSource<T> class to bind the DevExpress Blazor TreeList to a large IQueryable<T> data collection. This data source implementation is based on our DevExtreme.AspNet.Data library. When you use this data source, the TreeList component performs the following actions to optimize performance and reduce overall memory consumption:
- Loads child nodes when the node is expanded for the first time.
- Delegates data filtering operations to an underlying query provider.
- Switches FilterTreeMode to
Nodes. In this mode, the TreeList ignores parent-child relationships and displays all nodes that meet the filter criteria at one level.
To use this data source in your next Blazor project, follow the steps below:
- Create a GridDevExtremeDataSource<T> class instance and pass your IQueryable<T> data collection as the constructor parameter. Assign the result to the TreeList's Data property.
- Specify KeyFieldName and ParentKeyFieldName properties. The component uses them to build the tree.
- Specify the HasChildrenFieldName property. The component uses this property to determine which nodes require expand buttons.
To help illustrate the performance benefits of GridDevExtremeDataSource<T>, this demo is linked to a dataset with over 100,000 nodes. You can expand or collapse nodes, and filter or sort data to evaluate the performance/responsiveness.