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Nullable Type In Linq C# RRS feed

  • Question

  • in my database there is some row which is null and how can i use nullable type or how can i skip nullable row in linq? but i prefer to use nullable type rather than skip rows
    Wednesday, February 13, 2019 3:34 PM

All replies

  • What type of database eg. SQL-Server?

    What method is used to read data eg. Entity Framework, SqlClient managed provider into a DataTable???

    Perhaps no DataTable but instead using a DataReader

    if (read.Read())
    {
       int colIndex = read.GetOrdinal("MyColumnName");
       maskedTextBox2.Text = read.IsDBNull(colIndex) ? 
                      string.Empty : 
                      read.GetDateTime(colIndex).ToString("MM/dd/yyyy");
    
    }

    Using LINQ

    var query1 =
        from c in categories
        where c != null
        join p in products on c.ID equals
            p?.CategoryID
        select new { Category = c.Name, Name = p.Name };


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    Wednesday, February 13, 2019 5:27 PM
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