Get the Value of WPF Listview rows and compare them with database field using Linq query

i want to compare ECH_INTITULE in my database with the values of the listview rows but my problem is that i can't access the Listview items in my Linq query

here is my Xaml code for my Listview :

<ListView x:Name="listView" SelectedItem="{Binding SelectedItem}" ItemsSource="{Binding}" DataContext="query" HorizontalAlignment="Left" Height="430" Margin="24,47,0,0" VerticalAlignment="Top" Width="940" >
<ListView.View>
<GridView x:Name="gridView">
<GridViewColumn Header="Fournisseur" DisplayMemberBinding="{Binding fournisseur}" Width="280"/>
<GridViewColumn Header ="Adresse Mail" DisplayMemberBinding="{Binding email}" Width="270"/>
<GridViewColumn Header ="Date" DisplayMemberBinding="{Binding date}" Width="150"/>
<GridViewColumn Header="Fichier CSV" DisplayMemberBinding="{Binding xxx}" Width="105"/>
<GridViewColumn Header="Fichier PDF" DisplayMemberBinding="{Binding xxx}" Width="105"/>
GridView>
ListView.View>
ListView>

and here is my c# code :

//Generate CSV Files for each item in the Listview
CsvFileDescription outpCsvFileDescription = new CsvFileDescription
{
SeparatorChar = ',',
FirstLineHasColumnNames = true
};
for (int i = 0; i < listView.Items.Count; i++)
{
var infoEcheances = from f in db.F_ECHEANCES
//where f.ECH_Intitule == ???
select new { f.ECH_Intitule, f.ECH_DateEch, f.CG_Num, f.ECH_Piece, f.ECH_RefPiece, f.ECH_Montant, f.ECH_Libelle };
CsvContext cc = new CsvContext();
string myPath = @"C:\Users\DefaultAccount\Desktop\Projet Top Of Travel\FichiersCSV\";
string filename = string.Format("Facture{0}.csv", i);
string finalPath = System.IO.Path.Combine(myPath, filename);
cc.Write(infoEcheances, finalPath, outpCsvFileDescription);
}

1 Reply

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Bhuvanesh Mohankumar10y ago
I suggest you to assign the list values to temp variables and compare both using linq.

Sample for comparing list values in linq:

HashSet sentIDs = new HashSet(SentList.Select(s => s.MsgID)); var results = MsgList.Where(m => !sentIDs.Contains(m.MsgID));
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