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| Prepare Financial Reports | Samantha Bright | 4/7/2018 | 4/7/2018 | Medium |
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| Follow Up With East Coast Stores | James Anderson | 10/13/2017 | 10/13/2017 | High |
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| Budget Reports | Arnie Schwartz | 5/9/2017 | 1/30/2018 | Low |
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| Research And Improve Customer Satisfaction | Dallas Lou | 8/13/2017 | 4/23/2018 | Medium |
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| Engineering Dept Budget Request Report | Mary Stern | 1/28/2018 | 11/19/2017 | High |
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| Replace Old Artwork With New Artwork | Nat Maguiree | 7/5/2017 | 9/29/2017 | Low |
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| Upgrade Apps to WPF or Stay With WinForms | Lincoln Bartlett | 9/25/2017 | 1/17/2018 | Medium |
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| Update Revenue Projections | Sammy Hill | 7/6/2017 | 2/20/2018 | High |
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| Review Customer Bug Reports/Prep Workarounds | Morgan Kennedy | 9/26/2017 | 9/12/2017 | Low |
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| Approve Hiring Of John Jeffers | Clark Morgan | 12/22/2017 | 3/1/2018 | Medium |
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| Lunch Potluck | Barb Banks | 12/13/2017 | 11/20/2017 | High |
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| Support Team Evaluation Report | Karen Goodson | 2/17/2018 | 4/21/2018 | Low |
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| Return Merchandise Report | Jim Packard | 10/14/2017 | 9/10/2017 | Medium |
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| Prepare Year-End Support Summary Report | Brett Wade | 2/12/2018 | 3/23/2018 | High |
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| Provide Feedback on Shippers | Amelia Harper | 11/12/2017 | 8/5/2017 | Low |
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| Schedule Training Events | Terry Bradley | 3/8/2018 | 12/11/2017 | Medium |
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| Finish Raising New Capital For Growth Needs | Arthur Miller | 12/16/2017 | 2/4/2018 | High |
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| Rollout Of New Website and Marketing Brochures | Antony Remmen | 6/9/2017 | 12/13/2017 | Low |
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| Business Cards | Billy Zimmer | 7/14/2017 | 10/3/2017 | Medium |
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| Review Complaint Reports | Stu Pizaro | 6/5/2017 | 4/16/2018 | High |
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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 delegates data filtering operations to an underlying query provider and loads node children when the node is expanded for the first time. This technique optimizes performance and reduces overall memory consumption.
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. Expand or collapse nodes, sort data to evaluate performance/responsiveness.