You did not specify a technology you want to use, so this answer is a general answer (see my comment to the question). But before, one little tip: i would suggest you to use
SearchBox[
^] (on the right-top corner of this site) before you ask a question. Please, read
QA rules[
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Crystal report does not supports data presentation in a graph form. Crystal report supports grouping to display hierarchical data in a similar way how it displays a tree control.
Grouping Data Hierarchically[
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Also, you can display hierarchical data in a TreeView control too.
Walkthrough: Displaying Hierarchical Data in a TreeView Control[
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How to print treeview?[
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But i would suggest you to create custom graph, for example:
Building an oriented graph in a graphical application[
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For further information, please, see:
Cyclomatic complexity[
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Part 5: From Trees To Graphs - An Extensive Examination of Data Structures Using C# 2.0[
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