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LINQ doesnt accept DataTable

I have this code: (ds is DataSet)

DataTable dtRawData = ds.Tables[0];

        int iStateIDX = 1;

        for (int i = 0; i < dtRawData.Rows.Count; i++, iStateIDX++)
LINQ doesnt accept this code, because I can not implement AsEnumerable  in DataTable dtRawData = ds.Tables[0].AsEnumerable; it is an error
I can use only row collection
var rows = from p in ds.Tables[0].AsEnumerable()
foreach (var v in rows)
I need to use "int I" , but I cannot put rows.Count instead of dtRawData.Rows.Count in this statement:
for (int i = 0; i < dtRawData.Rows.Count; i++, iStateIDX++), it is an error
How can I use Data Table for LINQ, or insert rows.Count im this statement?

0
J_Kogan
Asked:
J_Kogan
1 Solution
 
tcullerCommented:
Remember, there are two types of DataTables-- System.Linq.DataTable, and System.Data.DataTable. Which are you using? The System.Linq one? Because that one is generic, and requires generic type parameters. I'm at school, so I can't test it (we're running the .NET Framework 2.0 right now, 'cuz the administration is severely disabled in EVERY way known to man).

Anyways, if you're using linq, you need to use its DataTable object. I believe it look ssomething like this...
System.Linq.DataTable<typeOfObjectsInTable> linqTable =
     new System.Linq.DataTable<typeOfObjectsInTable>();

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J_KoganAuthor Commented:
I use System.Data.DataTable, may I use another one?
will be better?
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tcullerCommented:
You must use the Linq table type in your Linq statements. Otherwise, you're intermixing these two objects with totally different implementations.
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Sreedhar VengalaSr. Consultant - Business IntelligenceCommented:
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ekekakosCommented:
As I found today the following I hope that will help you



Dim OrderedMaterials = From Material In DatasetPurchases.Tables("SelectMaterialsPacking").AsEnumerable(), _
PurchasedMaterial In DatasetPurchases.Tables("PurchaseMaterials").AsEnumerable() _
Where PurchasedMaterial!MaterialID_FK = Material!MaterialID And _
PurchasedMaterial!PurchaseID_FK = ListBoxControlPurchases.SelectedValue _
Select Material!MaterialID, Material!MaterialMnemonic, Material!MaterialDescription, Material!PackingMnemonic

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