GanttControlOptionsCustomization.AllowModifyDependencies Property
Gets or sets whether users can modify dependencies between tasks in the chart: change a predecessor or successor of a task, create new dependencies.
Namespace: DevExpress.XtraGantt.Options
Assembly: DevExpress.XtraGantt.v20.2.dll
NuGet Package: DevExpress.Win.Gantt
Declaration
[DefaultValue(DefaultBoolean.Default)]
[XtraSerializableProperty]
public DefaultBoolean AllowModifyDependencies { get; set; }Property Value
| Type | Default | Description |
|---|---|---|
| DefaultBoolean | **Default** | True, if users can modify dependencies; otherwise, Default or False. |
Available values:
| Name | Description |
|---|---|
| True | Corresponds to a Boolean value of true. |
| False | Corresponds to a Boolean value of false. |
| Default | The value is determined by the current object’s parent object setting (e.g., a control setting). |
Property Paths
You can access this nested property as listed below:
| Object Type | Path to AllowModifyDependencies |
|---|---|
| GanttControl |
|
Remarks
If the AllowModifyDependencies option is enabled, users can change a task’s predecessor or successor. Users can remove a dependency or attach it to another task if the mouse pointer hovers over the dependency arrow. To create a new dependency, use pointers displayed at task edges.
Note
The Editable option must be enabled and the ReadOnly option must be disabled to allow users to modify tasks.
You can handle the following events to customize an operation:
- TaskDependencyModification — repeatedly fires when the user modifies a task’s dependency.
- TaskDependencyModificationCanceled — fires when the user presses Esc to cancel the operation.
- TaskDependencyModificationCompleted — fires when a user finishes modifying a dependency. Allows you to cancel the operation.
- TaskDependencyModified — fires when a task’s dependency is successfully modified.
See Interactive Editing for more information.