LINQ To Return Properties from a class

Question

First off, New to XAML and Programming in general. I am trying to populate a XAML Datagrid in the .cs file.

I have classes for each SQL table I'm using, holding properties that reference columns

    public partial class TTDepartment
    {
        public TTDepartment()
        {
            this.TTEventLogs = new HashSet<TTEventLog>();
            this.TTUserDepartments = new HashSet<TTUserDepartment>();
        }

        public string Department { get; set; }
        public string Manager { get; set; }
        public string ManagerEmail { get; set; }

        public virtual ICollection<TTEventLog> TTEventLogs { get; set; }
        public virtual ICollection<TTUserDepartment> TTUserDepartments { get; set; }
    }

What I am doing currently is attempting to use LINQ queries on my classes to retrieve data, Like this

(I'm Aware there is likely a better way to do this) please help

        private void GetDepartments()
        {

            using (var context = new CetusEntities())// New instance of Database class
            {
                var linqDept = context.TTDepartments.Where(s => s.Department != "" || s.Department != null); // Should return All Departments from TTDepartments Class?
                //Populate colDept in Datagrid with results from LINQ
            } 
        }

Here is the XAML for Datagrid

                <DataGrid x:Name="dgDept"  Height="200">
                    <DataGrid.Columns>
                        <DataGridTextColumn x:Name="colDept" Binding="{Binding Source = {StaticResource Department}}" Header="Department"></DataGridTextColumn>
                        <DataGridTextColumn x:Name="colMan" Binding="{Binding Source = {StaticResource Department}}" Header="Manager"></DataGridTextColumn>
                        <!--<DataGridTextColumn Header="Email"></DataGridTextColumn>-->
                    </DataGrid.Columns>
                </DataGrid>

Answer 1

Your query should look like this:

var linqDept = context.TTDepartments.Where(s =>(!string.IsNullOrEmpty(s)));

Also, verify that you actually have data in your db. Then debug.

//set the datagrid source to test.

dtGrid.ItemsSource = linqDept;

XAML Example:

<DataGridTextColumn x:Name="colDept" Binding="{Binding Department}" Header="Department"></DataGridTextColumn>