Convert the code into lambda/LINQ(C#3.0)

How to convert the below code into lambda

if (ds != null && ds.Tables.Count > 0)
            {
                dtAsset = ds.Tables["AssetData"];
                dtCharecteristics = ds.Tables["CharacteristicsData"];

                for (int i = 0; i < dtAsset.Rows.Count; i++)
                {
                    for (int j = 0; j < dtCharecteristics.Rows.Count; j++)
                    {
                        if (dtAsset.Rows[i]["AssetId"].Equals(dtCharecteristics.Rows[j]["AssetId"]))
                        {
                            objAttributesCollection.Add(new Attributes
                            {
                                AttributeCode = Convert.ToString(dtCharecteristic开发者_如何学Gos.Rows[j]["AttributeCode"]),
                                TimeSeriesData = fn(Convert.ToDateTime(dtCharecteristics.Rows[j]["StartDate"]), Convert.ToString(dtCharecteristics.Rows[j]["Value"]))
                            });  

                        }
                    }
                    objAssetCollection.Add(new Asset
                    {
                        AssetId = Convert.ToInt32(dtAsset.Rows[i]["AssetId"]),
                        AssetType = Convert.ToString(dtAsset.Rows[i]["AssetCode"]),
                        AttributeCollection = objAttributesCollection
                    });
                    objAttributesCollection = new List<Attributes>();
                }
            }

I am using C#3.0

There is nothing wrong in the code but for the sake of learning I want to do this.

Thanks

Here's one suggestion:

Instead of using .ForEach, use a from, then select the item being created inside your loop.

I did that..

if (ds != null && ds.Tables.Count > 0)
            {
                dtAsset = ds.Tables["AssetData"];
                dtCharecteristics = ds.Tables["CharacteristicsData"];
                DataTableExtensions.AsEnumerable(dtAsset).ToList().ForEach(i =>
                    {
                        DataTableExtensions.AsEnumerable(dtCharecteristics)
                            .ToList().ForEach(j =>
                            {

                                if(i["AssetId"].Equals(j["AssetId"]))
                                {
                                    objAttributesCollection.Add(new Attributes
                                    {
                                        AttributeCode = Convert.ToString(j["AttributeCode"]),
                                        TimeSeriesData = fn(
                                                        Convert.ToDateTime(j["EndDate"]), 
                                                        Convert.ToString(j["Value"])
                                        )
                                    }); 
                                }

                            });
                        objAssetCollection.Add(new Asset
                        {
                            AssetId = Convert.ToInt32(i["AssetId"]),
                            AssetType = Convert.ToString(i["AssetCode"]),
                            AttributeCollection = objAttributesCollection
                        });
                        objAttributesCollection = new List<Attributes>();
                    }
                );