How to convert for loop into Linq Query.

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Can any body help me to convert below code into LINQ:

C#

for (int i = 0; i < m_Product.Products.Count; i++)
                {
                    // Check child node having dependent product or not
                    if ((m_Product.Products[i].ID) == nodeDependentProduct)
                    {
                        for (int j = 0; j < m_Product.Products[i].Firmwares.Count; j++)
                        {
                            // Check sub child node having dependent firmware or not
                            if ((m_Product.Products[i].Firmwares[j].ID) == nodeDependentFirmware)
                            {
                                e.Node.Parent.Parent.Nodes[i].Nodes[j].Checked = true;
                                e.Node.Parent.Parent.Nodes[i].Nodes[j].ToolTipText = Resources.CResource.DependNodeToolTipMessage;
                                m_Product.Products[i].Firmwares[j].IsDependentFirmware = true;
                            }
                        }
                    }
                }

Posted 29-Sep-15 20:41pm

S K Suman

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Maciej Los 30-Sep-15 2:53am

What have you tried?

S K Suman 30-Sep-15 3:01am

var res = from pro in m_Product.Products
where pro.ID == nodeDependentProduct
from frm in pro.Firmwares
where frm.ID == nodeDependentFirmware
select frm;

S K Suman 30-Sep-15 3:02am

I am totally new about LINQ. And my requirement is to convert for loops in Linq. So please help me.

F-ES Sitecore 30-Sep-15 7:25am

If it works leave it as it is, using linq will be slower.

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Maciej Los · Accepted Answer · 2015-09-30T01:15:00

Solution 1

I'm sure you're pretty close...

C#

var res = from pro in m_Product.Products
    where pro.ID == nodeDependentProduct
    join frm in pro.Firmwares on pro.ID equals frm.ProId
    where frm.ID == nodeDependentFirmware
    select frm;

For further details, please see: LINQ - Sample Queries[^]

Posted 30-Sep-15 1:15am

Maciej Los

Updated 30-Sep-15 6:18am

v2

Comments

Leo Chapiro 30-Sep-15 7:26am

+5, Maciej!

Maciej Los 30-Sep-15 7:27am

Thank you.

S K Suman 30-Sep-15 8:12am

Can you suggest me any link to get practical idea about conversion from nested for loop with if/else statement.

Maciej Los 30-Sep-15 12:18pm

Answer has been updated!