Hi,

please bear with me as I am not sure of what I am doing. :)

I have a datagrid showing some data. A background process loops through the list of items in the grid and I want to update the data shown in the grid with the result of the process as each item is dealt with.

Specifically my grid shows a list of emails to be sent. When an email gets sent I save the time it was sent and if there was an error during the send gets saved to the email record as well. So I want this to be reflected in the grid.

This is the code that starts off the background process

        private void btnEmail_Click(object sender, RoutedEventArgs e)
        {
            
            this.BackgroundWorker = new BackgroundWorker();
            this.BackgroundWorker.WorkerReportsProgress = true;
            this.BackgroundWorker.DoWork += new DoWorkEventHandler(this.EmailQueueBackgroundWorker_DoWork);
            this.BackgroundWorker.ProgressChanged += new ProgressChangedEventHandler(this.BackgroundWorker_ProgressChanged);

            this.progressBar.Maximum = 100;
            this.progressBar.Minimum = 0;

            //// Start the Asynch Worker
            this.BackgroundWorker.RunWorkerAsync();
        }

This code calls the process to go through the list after first building up a list of Primary Keys of the emails to be sent:

        private void EmailQueueBackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
        {
            // Create the process object in worker thread
            EmailQueueProcess emailQueue = new EmailQueueProcess();

            // register the handler
            emailQueue.ProcessStateChange += new ProcessStateChangeEventHandler(SendEmail_ProcessStateChange);
            
            // build the list of Primary Keys to process
            DataTable emailQueuePKs = this.BuildEmailQueuePKsDataTable(); 

            // Kick off the process
            emailQueue.ProcessQueue(emailQueuePKs); 
       }

The supporting code for updating the progress bar:

        /// <summary>
        /// State change handler for the business process
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void SendEmail_ProcessStateChange(object sender, ProcessStateChangeEventArgs e)
        {
            if (e.ProcessState == ProcessState.ProgressChanged)
            {
                this.BackgroundWorker.ReportProgress(e.ProgressPercentage, e);
            }

        }

        /// <summary>
        /// progress changed handler for the asynch call back of the backround worker
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void BackgroundWorker_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            ProcessStateChangeEventArgs businessStateArgs = e.UserState as ProcessStateChangeEventArgs;
            if (businessStateArgs != null)
            {
                // Check e.ProcessState enum and the percentage here and set the status bar appropriately
                if (businessStateArgs.ProcessState == ProcessState.ProgressChanged)
                {
                    this.progressBar.Value = e.ProgressPercentage;

                    // can I update the datatable being displayed in the grid?

                }
            }
        }

Is there a way for me to hook into this code to update the datagrid to display the updated values?