Question

I am trying to used following code but I am not getting good performance in my Application.

I have list of 2000 images in “dt_Images.ToList()”.

In cs:

foreach (var dr in dt_Images.ToList())
            {
                BTN = new Button();
                BTN.Name = dr.Name.ToString();
                BTN.Image = dr.Image;
                BTN.Text = dr.text.ToString();
                flowLayoutPanel1.Controls.Add(BTN);
                BTN.Click += new EventHandler(this.pic_Click);
            }

I have also try to binding with listview but not getting desired speed.

How can I increase speed while binding with flowLayoutPanel?

can i bind direct DataSource in control? then which control i used?

Please help me

Answer 1

I can see that you are using a FlowLayout panel. I suspect it to redo the whole layout each time you add a child control, which might take a lot of time too.

Can you try to enclose the whole loop this way :

flowLayoutPanel1.SuspendLayout();

foreach (var dr in dt_Images.ToList())
        {
            BTN = new Button();
            BTN.Name = dr.Name.ToString();
            BTN.Image = dr.Image;
            BTN.Text = dr.text.ToString();
            flowLayoutPanel1.Controls.Add(BTN);
            BTN.Click += new EventHandler(this.pic_Click);
        }

flowLayoutPanel1.ResumeLayout();

You can even try to achieve even better performances by disabling the painting using the answers here.