To programmatically add a predecessor, complete the following:
To write code in Visual Basic
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Private Sub btnAddPredecessor_Click(sender As Object, e As EventArgs)
' find task1 and task2
Dim task1 As Task = ganttView.Tasks.Search("Task 1")
Dim task2 As Task = ganttView.Tasks.Search("Task 2")
If task1 IsNot Nothing AndAlso task2 IsNot Nothing AndAlso task2.Predecessors.Count = 0 Then
' switch to auto-scheduling mode
task2.Mode = TaskMode.Automatic
Dim p As New Predecessor()
p.PredecessorTask = task1
task2.Predecessors.Add(p)
' restore the manual mode
task2.Mode = TaskMode.Manual
End If
End Sub
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To write code in C#
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Copy Code
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private void btnAddPredecessor_Click(object sender, EventArgs e)
{
// find task1 and task2
Task task1 = ganttView.Tasks.Search("Task 1");
Task task2 = ganttView.Tasks.Search("Task 2");
if (task1 != null && task2 != null && task2.Predecessors.Count == 0)
{
// switch to auto-scheduling mode
task2.Mode = TaskMode.Automatic;
Predecessor p = new Predecessor();
p.PredecessorTask = task1;
task2.Predecessors.Add(p);
// restore the manual mode
task2.Mode = TaskMode.Manual;
}
}
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