Image Folder View Using C#.Net Winforms


ImageFolder.jpg

Introduction

Today in this article, I will explain how to create a simple C# program for Image Folder View. It has been a long time since I have planed to create a Winform C# program, for viewing Images the same as a folder structure (Small icon, Medium icon, Large icon and Extra Large icon). Today finally I got some time to work on my simple program.

In my program I have used a "FolderBrowserDialog" to select Image path folder location. The images listed in the selected folder will be loaded to a panel. The user can view the images as Small, Medium, Large or Extra Large icons by clicking on the menu top. When users hover the mouse on images a preview will be displayed in the right that can be saved as an image file.

Using the Code

  1. Variable Declarations

    I have declared the FolderBrowserDialog, locationX, locationY, Width and Height of the picture box for initial setting.
     

    private System.Windows.Forms.FolderBrowserDialog folderBrowserDlg;

    int locX = 20;

    int locY = 10;

    int sizeWidth = 30;

    int sizeHeight = 30;
     

  2. Open Folder

    ImageFolder1.jpg

    In the Open Folder Menu click event I get all the images from the selected folderpath using Folder.GetFiles() method, and checking for the images files from the selected folder. Using loadImagestoPanel() all the images are added to a pictuerbox and finally all the picturebox are added to the Panel control.

    The details of the Open folder menu click event:
     

    private void openFolderToolStripMenuItem_Click(object sender, EventArgs e)

    {

        DirectoryInfo Folder;

        FileInfo[] Images;

        this.folderBrowserDlg.RootFolder = System.Environment.SpecialFolder.MyComputer;

        this.folderBrowserDlg.ShowNewFolderButton = false;

        DialogResult result = this.folderBrowserDlg.ShowDialog();

        if (result == DialogResult.OK)

        {

            Folder = new DirectoryInfo(folderBrowserDlg.SelectedPath);

            Images = Folder.GetFiles();

            pnControls.Controls.Clear();

            int locnewX = locX;

            int locnewY = locY;

            foreach (FileInfo img in Images)

            {

                if (img.Extension.ToLower() == ".png" || img.Extension.ToLower() == ".jpg" || img.Extension.ToLower() == ".gif" || img.Extension.ToLower() == ".jpeg" || img.Extension.ToLower() == ".bmp" || img.Extension.ToLower() == ".tif")
                    {

                    if (locnewX >= pnControls.Width - sizeWidth - 10)

                    {

                        locnewX = locX;

                        locY = locY + sizeHeight + 30;

                        locnewY = locY;

                    }

                    else

                    {

     

                        locnewY = locY;

                    }

                    loadImagestoPanel(img.Name, img.FullName, locnewX,locnewY);

                    locnewY = locY + sizeHeight + 10;

                    locnewX = locnewX + sizeWidth + 10;                       

                }

            }

        }          

    }

    The detail Folder Images are added to the panel function.

    In this function get the Imagename, Path, image XLocation and image YLocation. Create a pictuerbox at runtime and add all pictuerboxes to the panel controls.
     

    private void loadImagestoPanel(String imageName,String ImageFullName,int newLocX,int newLocY)

    {

     

            PictureBox ctrl = new PictureBox();

            ctrl.Image = Image.FromFile(ImageFullName);

            ctrl.BackColor = Color.Black;

            ctrl.Location = new Point(newLocX, newLocY);

            ctrl.Size = new System.Drawing.Size(sizeWidth, sizeHeight);

            ctrl.SizeMode = PictureBoxSizeMode.StretchImage;

            ctrl.MouseMove += new MouseEventHandler(control_MouseMove);

            pnControls.Controls.Add(ctrl);

     

        }

    }


    I have added a MouseMove event for all Pictuerbox controls. In this MouseMove Event I displayed the image to the preview Image Pictuerbox.

    private void control_MouseMove(object sender, MouseEventArgs e)
    {
        Control control = (Control)sender;
        PictureBox pic = (PictureBox)control;
        pictureBox1.Image = pic.Image;
    }

  3. Image Icon Size Change

    ImageFolder2.jpg

    Here I have 4 menu buttons for Small, Medium, Large and Extra Large. In this button click event I set the pictuerbox height and width and reload all the pictuerboxes with the new size added. The detailed code is listed below.
     

    private void toolStripButton4_Click(object sender, EventArgs e)

    {

                locX = 20;
                locY = 10;
                sizeWidth = 30;
                sizeHeight = 30;
                if (pnControls.Controls.Count > 0)
                {
                    loadControls();                
                }

     

    }

    private void loadControls()

    {

        int locnewX = locX;

        int locnewY = locY;

    foreach (Control p in pnControls.Controls)

        {

            if (locnewX >= pnControls.Width - sizeWidth - 10)

            {

                locnewX = locX;

                locY = locY + sizeHeight + 30;

                locnewY = locY;

            }

            else

            {

                locnewY = locY;

            }

            p.Location = new Point(locnewX, locnewY);

            p.Size = new System.Drawing.Size(sizeWidth, sizeHeight);

            locnewY = locY + sizeHeight + 10;

            locnewX = locnewX + sizeWidth + 10;

        }

    }

Points of Interest

The main purpose of this article is to create a simple C# application to view all the images listed in the folder with preview and save functionality.

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