Gantt Chart

• Download Gantt Chart Tester - 27.3 KB

Introduction

This component makes it easy to add a Gantt Chart to your application. You just need three lines of code to get it working

The Gantt Chart includes these features:

• The columns are automatically shown based on the width of the component and the time between the start date and end date. If there's more than 2 days between those dates, it will only show the date, otherwise it will show the time of the day (with min. 5 minutes apart)
• You can set the color (incl. hover color) for each bar individually
• The Gantt Chart automatically shows a custom scroll bar when it contains more rows that the visible area allows
• You can easily obtain information about the bar when hovering your mouse above one
• An easy to use multi row tooltiptext

Background

I tried to find a good free and easy Gantt Chart to use in my project, but didn't have any luck. Then I decided to make one myself, which actually was easier than I thought it would be

Using the code

To get the Gantt Chart component to show something you only need this:

// GanttChart1.FromDate = New Date(2007, 12, 12, 0, 0, 0)
// GanttChart1.ToDate = New Date(2007, 12, 24, 0, 0, 0)
// GanttChart1.AddChartBar("Row 1", Nothing, New Date(2007, 12, 12), 
    New Date(2007, 12, 16), Color.Aqua, Color.Khaki, 0))

As mentioned above this component also includes a multiline tooltiptext

// With GanttChart2
//      Dim toolTipText As New List(Of String)
//      toolTipText.Add("Time:")
// 
//      .ToolTipTextTitle = .MouseOverRowText
// 
//      .ToolTipText = toolTipText
// 
//     End With

When a tooltiptext-row includes the line is automatically bolded

It is also possible to save the Gantt Chart to an image file

// GanttChart2.SaveImage("C:\TestImage.jpg")

The included .zip file contains a project showing how to use it's different features

History

Version 0.54

The Gantt Chart can now be saved to an image file

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Version 0.53

ScrollBar added to component