The event markers in the Gantt Chart component is used to highlight the important events in a project. Event markers can be initialized by using the EventMarkers
property, and you can define date and label for the event markers using the Day
and Label
properties. You can also customize it using the CssClass
properties. The following code example shows how to add event markers in the Gantt Chart component.
@using Syncfusion.Blazor.Gantt
<SfGantt DataSource="@TaskCollection" Height="450px" Width="700px">
<GanttTaskFields Id="TaskId" Name="TaskName" StartDate="StartDate" EndDate="EndDate"
Duration="Duration" Progress="Progress" Child="SubTasks">
</GanttTaskFields>
<GanttEventMarkers>
<GanttEventMarker Day="@Event" Label="Project approval and kick-off"
CssClass="e-custom-event-marker"></GanttEventMarker>
</GanttEventMarkers>
</SfGantt>
@code{
public DateTime Event = new DateTime(2019, 04, 17);
public List<TaskData> TaskCollection { get; set; }
protected override void OnInitialized()
{
this.TaskCollection = GetTaskCollection();
}
public class TaskData
{
public int TaskId { get; set; }
public string TaskName { get; set; }
public DateTime StartDate { get; set; }
public DateTime EndDate { get; set; }
public string Duration { get; set; }
public int Progress { get; set; }
public List<TaskData> SubTasks { get; set; }
}
public static List <TaskData> GetTaskCollection() {
List <TaskData> Tasks = new List <TaskData> () {
new TaskData() {
TaskId = 1,
TaskName = "Project initiation",
StartDate = new DateTime(2019, 04, 02),
EndDate = new DateTime(2019, 04, 21),
SubTasks = (new List <TaskData> () {
new TaskData() {
TaskId = 2,
TaskName = "Identify Site location",
StartDate = new DateTime(2019, 04, 02),
Duration = "0",
Progress = 30,
},
new TaskData() {
TaskId = 3,
TaskName = "Perform soil test",
StartDate = new DateTime(2019, 04, 02),
Duration = "4",
Progress = 40,
},
new TaskData() {
TaskId = 4,
TaskName = "Soil test approval",
StartDate = new DateTime(2019, 04, 02),
Duration = "0",
Progress = 30,
},
})
},
new TaskData() {
TaskId = 5,
TaskName = "Project estimation",
StartDate = new DateTime(2019, 04, 02),
EndDate = new DateTime(2019, 04, 21),
SubTasks = (new List <TaskData> () {
new TaskData() {
TaskId = 6,
TaskName = "Develop floor plan for estimation",
StartDate = new DateTime(2019, 04, 04),
Duration = "3",
Progress = 30,
},
new TaskData() {
TaskId = 7,
TaskName = "List materials",
StartDate = new DateTime(2019, 04, 04),
Duration = "3",
Progress = 40,
},
new TaskData() {
TaskId = 8,
TaskName = "Estimation approval",
StartDate = new DateTime(2019, 04, 04),
Duration = "0",
Progress = 30
}
})
}
};
return Tasks;
}
}
<style>
.e-gantt .e-gantt-chart .e-custom-event-marker {
width: 1px;
border-left: 2px red dotted;
}
</style>