How to Convert to LINQ

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Hello,

Please see below:

C#

int i = 0;
           foreach (DataGridViewRow dgr in this.dataGridView1.Rows)
           {
               dgr.DefaultCellStyle.BackColor = ((i % 2) == 0) ? Color.LightGray : Color.DarkGray;
               i++;
           }

Can anybody tell me how the above code can be converted into LINQ please?

Many thanks in advance

Posted 7-Feb-13 3:59am

Member1978

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joshrduncan2012 7-Feb-13 10:25am

What have you tried so far?

2 solutions

Solution 1

Best solution I can come up with is

Buy ReSharper, and there is a function to convert foreach into LINQ.

That's what I have used in the past, and miss it now :(

http://www.jetbrains.com/resharper/[^]

Posted 7-Feb-13 5:37am

Rob Branaghan

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Keith Barrow · Accepted Answer · 2013-02-07T05:59:00

Solution 2

First, why do this in LINQ? The code you have does the job without it, so I'd suggest taking a look at why it is necessary to change.

If you want to you could clean you line a little:

C#

bool isOddRow = true;
foreach (DataGridViewRow dgr in this.dataGridView1.Rows)
{
    dgr.DefaultCellStyle.BackColor = isOddRow ? Color.LightGray : Color.DarkGray;
    isOddRow = !isOddRow;
}

One positive change you could make is to take advantage of AlternatingRowsDefaultCellStyle and RowsDefaultCellStyle, which would probably make the above redundant totally, see MSDN for examples.

Posted 7-Feb-13 5:59am

Keith Barrow

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Member1978 7-Feb-13 14:50pm

Thanks Keith
You are Geordie then. I went to Newcastle Polytechnic many years ago. I agree with you people up in Newcastle are very kind indeed. I had such a good time there.
Cheers for the solution.

Keith Barrow 7-Feb-13 15:04pm

I am indeed, born & bred. I almost went to Northumbria Uni (hasn't been a Poly since my undergrad days in the mid 90s) to read my MSc, but the course at Newcastle suited my needs better as it had less emphasis on DB work. Glad to be of help!