# gantt-default-editing
> Gantt chart supports task editing, dependencies, custom dialog fields, and task markers.
**Framework:** aspnet-core **Component:** Gantt **Variant:** default-editing
## Get this item
**If you are an agent, fetch the JSON.** Source is inlined, so one request is enough and no tooling is required:
```
GET https://ai.syncfusion.com/r/aspnet-core/gantt-default-editing.json
```
**Install Package(s)**
```bash
dotnet add package Syncfusion.AspNetCore.Gantt
```
**Notes**
- Syncfusion release: 2026 Volume 2 (v34.1.29)
- The Syncfusion package is licensed. The composition in this file is source you own and edit. See https://ai.syncfusion.com/licensing.md
## Source files
### src/components/gantt-default-editing/gantt.cshtml
```cshtml
@page
@using EJ2CoreSampleBrowser.Models;
```
### src/components/gantt-default-editing/gantt.cshtml.cs
```cs
using Microsoft.AspNetCore.Mvc.RazorPages;
namespace EJ2CoreSampleBrowser.Models;
public class GanttData : PageModel
{
public static List EditingData()
{
var GanttDataSourceCollection = new List();
GanttDataSource Record1 = new GanttDataSource()
{
TaskId = 1,
TaskName = "Planning and permits",
StartDate = new DateTime(2025, 4, 2),
EndDate = new DateTime(2025, 4, 10),
Duration = 7,
Progress = 100,
ResourceId = new int[] { 1, 2, 3 }
};
GanttDataSource Record2 = new GanttDataSource()
{
TaskId = 2,
TaskName = "Site evaluation",
StartDate = new DateTime(2025, 4, 2),
EndDate = new DateTime(2025, 4, 4),
Duration = 2,
Progress = 100,
ParentID = 1,
ResourceId = new int[] { 1 }
};
GanttDataSource Record3 = new GanttDataSource()
{
TaskId = 3,
TaskName = "Obtain permits",
StartDate = new DateTime(2025, 4, 7),
EndDate = new DateTime(2025, 4, 9),
Duration = 3,
Progress = 100,
ParentID = 1,
Predecessor = "2",
ResourceId = new int[] { 2, 4 }
};
GanttDataSourceCollection.Add(Record1);
GanttDataSourceCollection.Add(Record2);
GanttDataSourceCollection.Add(Record3);
return GanttDataSourceCollection;
}
public static List EditingResources()
{
List GanttResourcesCollection = new List();
GanttResources Record1 = new GanttResources()
{
ResourceId = 1,
ResourceName = "Martin Tamer"
};
GanttResources Record2 = new GanttResources()
{
ResourceId = 2,
ResourceName = "Rose Fuller"
};
GanttResources Record3 = new GanttResources()
{
ResourceId = 3,
ResourceName = "Margaret Buchanan"
};
GanttResourcesCollection.Add(Record1);
GanttResourcesCollection.Add(Record2);
GanttResourcesCollection.Add(Record3);
return GanttResourcesCollection;
}
}
public class GanttDataSource
{
public int TaskId { get; set; }
public string TaskName { get; set; }
public DateTime? StartDate { get; set; }
public DateTime? EndDate { get; set; }
public int? Duration { get; set; }
public int Progress { get; set; }
public string Predecessor { get; set; }
public int[] ResourceId { get; set; }
public int? ParentID { get; set; }
}
public class GanttResources
{
public int ResourceId { get; set; }
public string ResourceName { get; set; }
public Nullable Unit { get; set; }
}
```