CODEWITHSUNDEEP
c#winforms
Rasheen Ruwisha
Rasheen Ruwisha

Reputation: 211

Open form as form.ShowDialog() and proceed wih function in parent form

I have an application where the users can add or delete products in a dashboard, because I connect it to azure sql the queries sometimes take time, so I need to block the ui in the main form, I tried disabling the currently open form. but that make the ui look bad.. I also tried form.ShowDialog() which made the main ui struck.. how can I block the main UI till the query is completed?

Upvotes: 1

Views: 280

Answers (1)

SH7
SH7

Reputation: 752

A sample "Please Wait" form with. Here there is two form 1. Main Form with a Button 2. Form Designed to show as "Please wait" message. The Form contains two control a. Label b. Progress Bar - the property style for the progress bar is made as Marquee

Sample Image

  1. PleaseWait.cs 

    public partial class PleaseWait : Form
{
    public Action Worker { get; set; }
    public PleaseWait(Action worker)
    {
        InitializeComponent();

        if(worker == null)
            throw new ArgumentNullException();

        Worker = worker;
    }

    protected override void OnLoad(EventArgs e)
    {
         base.OnLoad(e);
         Task.Factory.StartNew(Worker).ContinueWith(a=> 
         {
             this.Close();
         }, TaskScheduler.FromCurrentSynchronizationContext());
    }
}

  2. MainForm.cs . In button1_click you will initialize the PleaseWait Form as ShowDialog

    private void button1_Click(object sender, EventArgs e)
{
    using (PleaseWait pw = new PleaseWait(MakeAzureSQLQuery))
    {
        pw.ShowDialog();
    }
}

private void MakeAzureSQLQuery()
{
    //Making the Query Function
    //You can also use Background Thread for Querying
    for (int nCount = 0; nCount < 500; nCount++)
        Thread.Sleep(50);
}

Upvotes: 3

Related Questions