How to change color of rows when value of next row same as previous value in repeater in ASP.NET

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i need to coloring my repeater row when there is such a below condition

i a having a column named FamilyID, when family id is same for Below Row then i need to change the color, else change the other color.
for eg
familyid

1 This is Same ID so Any Color

1 This is Same ID so previous Color

1 This is Same ID so previous Color

2 Not Same ID in compare to above ---Any Next Color but not its previous

2 This is Same ID so previous Color

3 Not Same ID in compare to above ---Any Next Color but not its previous

4 -Not Same ID in compare to above ---Any Next Color but not its previous

What I have tried:

Don't know how to achieve or where to start.

Posted 16-Oct-19 23:52pm

Anuragintit

Updated 17-Oct-19 2:37am

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ZurdoDev · Answer 1 · 2019-10-17T02:38:00

You need to look at the various Repeater Events. One that might work is the ItemCreated event, Repeater.ItemCreated Event (System.Web.UI.WebControls) | Microsoft Docs[^] or possibly the ItemDataBound event, Repeater.ItemDataBound Event (System.Web.UI.WebControls) | Microsoft Docs[^]

However, if you're trying to compare with the one below it then the one below won't exist when these events fire so you may have to loop through all of the items during one of the page events, possibly LoadComplete or PreRender, Understanding the order of ASP.NET Page events[^]

Another option is to compare in SQL and return a flag that can be used in the ItemDataBound event.