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I'm assuming you want a two-way difference, what doesn't match in either grid?<br />
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How do you want to show the differences?<br />
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I've not done a lot with datagridview but I would probably look at LINQ but there is a previously asked question here that does a one-way difference:<br />
<a href="https://www.experts-exchange.com/questions/28135950/VB-net-Compare-columns-in-two-DataGridViews.html?anchorAnswerId=39190157#a39190157" rel="ugc">https://www.experts-exchange.com/questions/28135950/VB-net-Compare-columns-in-two-DataGridViews.html?anchorAnswerId=39190157#a39190157</a>
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I'm assuming you want a two-way difference, what doesn't match in either grid?

How do you want to show the differences?

I've not done a lot with datagridview but I would probably look at LINQ but there is a previously asked question here that does a one-way difference:
https://www.experts-exchange.com/questions/28135950/VB-net-Compare-columns-in-two-DataGridViews.html?anchorAnswerId=39190157#a39190157 [https://www.experts-exchange.com/questions/28135950/VB-net-Compare-columns-in-two-DataGridViews.html?anchorAnswerId=39190157#a39190157]

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Being a database developer, if I have a control, I would go further back and see what is the data source of both datagridviews and can it be compared at source itself? A FULL OUTER JOIN would be of a great help.
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Being a database developer, if I have a control, I would go further back and see what is the data source of both datagridviews and can it be compared at source itself? A FULL OUTER JOIN would be of a great help.

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Can you give me example or idea on how to make this happen? Thank you.
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Can you give me example or idea on how to make this happen? Thank you.

VB.net : How to compare data in same column in different datagridview?

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