part 2

Hi,

   I tried reading the AllProperties Column in SQL Server, and all I got when converted back to character, I used the following C# Code to convert it back to string as follows:

 byte[] bt = (byte[])row["AllProperties"];
 string s = System.Text.UTF8Encoding.ASCII.GetString(bt);

And the result is as follows:

"\0
\0\0\0????
\0\0\0\0\0\0\0\f\0\0\0sInfragistics4.Win.UltraWinSchedule.v12.2, Version=12.2.20122.1006, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb
\0\0\0&Infragistics.Win.UltraWinSchedule.Task\b\0\0\0Id\nConstraintConstraintDateTime\bDurationDurationFormatName\rStartDateTime\fParentTaskId\0\0\0\0
\0\vSystem.Guid\b\r\f\b\r\vSystem.Guid\0\0\0????\vSystem.Guid\v\0\0\0_a_b_c_d_e_f_g_h_i_j_k\0\0\0\0\0\0\0\0\0\0\0\b\a\a6?H?GsH???{??\0\0\0\0??k????\0?i*?\0\0\0\0\0\0\0\0\0New sub-task 2\0??k????
????????k???_?O?2??F?@\v"

Can you please give me some idea on how to it properly?

Thanks in advance.

Hi,

    I have converted it properly using Task.ReadFromBytes, now my problem is how am I going to access the custom column from the task class?

Thank you.

Hi,

  When I run and debug the application that reads the binary column, there is a non-public member that has CustomProperties that contains the custom columns and their values, but my question, how to access those fields when they are not public members.

Thanks

Hello LSG,

Please take a look at the answers of your questions:

LSG said:

 I tried reading the AllProperties Column in SQL Server, and all I got when converted back to character.Can you please give me some idea on how to it properly?

One possible approach could be if you are using the code below:

private void ultraButton3_Click(object sender, EventArgs e)

{

   SqlConnection conn = new SqlConnection("Data Source=IGBGSOFDS22;Initial Catalog=Test;Integrated Security=True");

   SqlCommand command = new SqlCommand("SELECT AllProperties FROM [dbTasks] WHERE [TaskID] = '2d43b92c-9f7e-474b-88dc-87d54649fcdf'", conn);

     conn.Open();

   SqlDataReader myReader = command.ExecuteReader();

   byte[] BinaryTaskData = null;

   while (myReader.Read())

    {

    // Deserialize the Task from Binary data using AllProperties column

    Task MyTask = Task.FromBytes((byte[])myReader[0]);

    // Make changes in the Task

      MyTask.Name ="New Name Task";

      MyTask.SetDuration(new TimeSpan(5, 35, 0), Infragistics.Win.TimeSpanFormat.Hours);

　   // Set a value in the Custom column

     ultraCalendarInfo1.Tasks.Add(MyTask);

     MyTask.SetCustomProperty("MyCustomColumn", "This is test");

   // By this way you could get a value from your custom column

   //var a = MyTask.GetCustomProperty("MyCustomColumn");

   //Save chages in the Task in Binary format;

      BinaryTaskData = MyTask.Save();

    }

myReader.Close();

// Save changes in the database usign Binary data and AllProperties column

SqlCommand command2 = new SqlCommand("UPDATE [dbTasks] set AllProperties = @AllProperties WHERE [TaskID] = '2d43b92c-9f7e-474b-88dc-87d54649fcdf'", conn);

command2.Parameters.Add("@AllProperties", SqlDbType.Binary);

command2.Parameters["@AllProperties"].SqlValue = BinaryTaskData;

command2.ExecuteNonQuery();

conn.Close();

}

LSG said:

now my problem is how am I going to access the custom column from the task class?

Maybe you could use  MyTask.SetCustomProperty() and MyTask.GetCustomProperty() method to get and set values from your custom columns.

Let me know if you have any questions.

Regards

Hi,

 My scenario is like this, I have custom columns saved in AllProperties column in sql server, I want to access this from outside the ganttview control, what happened, I tried the readfrombytes in task column, I first assumed that I can read it by using GetCustomProperty, but unfortunately, it caused an error of object not set, so I tried to run in debug mode, and found out that there is a CustomProperties found in task variable, but the problem is, it is not public so it is hard to read it directly, so what I did I used reflection and I was able to read the CustomProperties and converted it to Dictionary.

But my question, isn't there any easier way of reading custom columns?

Thanks

OK. Let me know if you have any questions.

Regards

Hi,

   I am sorry I missed that part, I will do test it and will post the result as soon as possible.

Thanks

Hi,

LSG said:

I first assumed that I can read it by using GetCustomProperty, but unfortunately, it caused an error of object not set ..... 

For example:

ultraCalendarInfo1.Tasks.Add(MyTask);

var a = MyTask.GetCustomProperty("MyCustomColumn");

If you take a look at the attached code in my previous response, you will see that I`m using the same approach to set a new value in the custom column.

Please try this approach and let me know if you have any questions.

Regards