How to readimage files dynamically from a folder

Question

3.00/5 (2 votes)

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Hi Friends,
I am currently working in a healthcard project. In that project each files contains ID number.

First we will scan those images and stored in a folder.

I need to retrieve those images one by one dynamically from that folder.

if i click submit button it need to retrieve the next image file from that folder.

please help me on this........

Posted 10-Aug-12 1:20am

P.Vinoth

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Comments

[no name] 10-Aug-12 7:24am

Help with what? You have not described any kind of a problem. Where is the code the demonstrates you problem?

3 solutions

Solution 1

you can see below link for you problem

http://www.albumonnet.com/Home/Index.aspx[^]

http://www.asp.net/ajaxLibrary/AjaxControlToolkitSampleSite/SlideShow/SlideShow.aspx[^]

http://www.c-sharpcorner.com/uploadfile/anjudidi/making-an-image-slideshow-in-Asp-Net/[^]

Posted 10-Aug-12 1:38am

abhinavvijay

Comments

Maciej Los 10-Aug-12 16:16pm

Good links, my 5!

Solution 3

Thank you very much friend. Its working good when i place the folder in my project.

But the folder is in D: drive i tried this following code but its showing error.

C#

private static DirectoryInfo dir;
       private static FileInfo[] images;
       private static int currIndex = 0;
       private static int count = 0;
       protected void Page_Load(object sender, EventArgs e)
       {
           dir = new DirectoryInfo(Server.MapPath(@"D:\Image"));
           images = dir.GetFiles();
           count = images.Length;
           if (!IsPostBack)
           {
               if (count > 0)
               {
                   string strImageurl = images[currIndex].Name;
                   strImageurl = "~/Image/" + strImageurl;
                   Image1.ImageUrl = strImageurl;
               }
           }
       }

       protected void submitbtn_Click(object sender, EventArgs e)
       {
           if (count > 0)
           {
               if (currIndex == (count - 1))
               {
                   currIndex = 0;
               }
               else
               {
                   currIndex++;
               }
               string newUrl = images[currIndex].Name;
               newUrl = "~/Image/" + newUrl;
               Image1.ImageUrl = newUrl;

           }
       }

ERROR:

'D:\Image' is not a valid virtual path.

Posted 15-Aug-12 20:56pm

P.Vinoth

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Jinu _George · Accepted Answer · 2012-08-10T02:17:00

Put your images in a folder named "Image" in project..

C#

    private static DirectoryInfo dir;
    private static FileInfo[] images;
    private static int currIndex=0;
    private static int count=0;
protected void Page_Load(object sender, EventArgs e)
    {
        dir = new DirectoryInfo(Server.MapPath("Image"));
        images = dir.GetFiles();
        count = images.Length;
        if (!IsPostBack)
        {
          if (count > 0)
            {
                string strImageurl = images[currIndex].Name;
                strImageurl = "~/Image/" + strImageurl;
                Image1.ImageUrl = strImageurl;
            } 
        }
   }
protected void submitbtn_Click(object sender, ImageClickEventArgs e)
    {
        if (count > 0)
        {            
            if (currIndex ==(count-1))
              {
                currIndex = 0;
              }
            else
              {
                currIndex++;
              }
            string newUrl = images[currIndex].Name;
            newUrl = "~/Image/" + newUrl;
            Image1.ImageUrl = newUrl;

        }
    }

XML

<asp:Button ID="submitbtn" runat="server" onclick="submitbtn_Click" Text="Submit" />

<asp:image ID="Image1" runat="server" Height="375px" Width="500px"></asp:image>

at page load this will load fist image in image folder to image control and on sumbit button click load next image and this will go on in cyclic way....