C# - Load And Display Image As Slideshow From The Server Directory?
Jan 27, 2010
I use .NET C# , I dynamically create folder to store the image I upload, ex:
strFolder = Server.MapPath("./folder/folder_"+folid+"/")
So I could create different folders according to the page unique id. I have also created a thumbnail image from the image I have upload (cropped ones).
The problem I am trying to figure out is to display these images as a slide show from these dynamically created folder (display thumbnail in the page and clicking the thumbnail need to see the full size image just like slideshow).
I was trying to see examples in jQuery but its just client side. So is there any way to load these images and display as a slide show from the directory. Should I deal with DirectoryInfo in C#? Expecting a simple one.
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int MaxRows = 0;
int inc = 0;
int inc1 = 1;
int inc2 = 2;
int inc3 = 3;
System.Data.OleDb.OleDbConnection cs;
System.Data.OleDb.OleDbDataAdapter dta;
DataSet ds1;
byte[] photo_array;
protected void Page_Load(object sender, EventArgs e)
{
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dta = new System.Data.OleDb.OleDbDataAdapter(sql, cs);
cs.Open();
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Navigation();
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}
private void Navigation()
{
//get the first records from the database
DataRow dtaRow = ds1.Tables["Images"].Rows[inc];
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TextBox3.Text = dtaRow.ItemArray.GetValue(1).ToString();
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DataRow dtaRow1 = ds1.Tables["Images"].Rows[inc1];
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TextBox2.Text = dtaRow1.ItemArray.GetValue(3).ToString();
DataRow dtaRow2 = ds1.Tables["Images"].Rows[inc2];
TextBox5.Text = dtaRow2.ItemArray.GetValue(1).ToString();
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{
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{
Image5.ImageUrl = "ImageHandler.ashx?ImageDescription=" + TextBox4.Text;
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{
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{
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}
Code for ImageHandler.ashx:
using System;
using System.Web;
using System.Data.OleDb;
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{
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cmd.Parameters.AddWithValue("", context.Request.QueryString["id"]);
conn.Open();
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{
if (rdr.HasRows)
{
rdr.Read();
context.Response.ContentType = "image/jpeg";
context.Response.BinaryWrite((byte[])rdr["ImageofPicture"]);
}
}
}
}
}
public bool IsReusable {
get {
return false;
}
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on another post i mentioned the problem but simplified it here! I am using ajax slideshow extender and getting images from my database
Datbase table file path example
/ ImageURL
/Members/matt//jeanette4.jpg
Code Behind
//here i open sql connection to database and retrieve images based on GUID of UserId which i add as sql parameter.//
// set the initial image
if (tblData.Rows.Count > 0)
{
imgShowImage.ImageUrl =tblData.Rows[0]["ImageUrl"].ToString();
imageLabel1.Text = tblData.Rows[0]["FirstName"].ToString();
}
}
}
[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
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dr["FirstName"].ToString(),
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Page shows the image
<asp:Image ID="imgShowImage" runat="server"
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<rewriter>
<rewrite url="~/Matt" to="~/MembersClub/PublicProfile.aspx?Id=a8742959-aa5e-4830-9fc1-94f1b3d0bc41"/>
</rewriter>
The images are stored in a file directory named "Members".
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I actually have a C# winform application which load images from my computer C://images/... with the Image object and the function Fromfile.
Image.FromFile(Path);
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