Web Forms :: Slideshow Rendering Images From Database
Mar 3, 2012how can i develop a slideshow of images coming from database?
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[Code]....
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Nov 11, 2010on 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]
public static AjaxControlToolkit.Slide[] GetSlides()
{
AjaxControlToolkit.Slide[] slides = new AjaxControlToolkit.Slide[tblData.Rows.Count];
for (int i = 0; i < tblData.Rows.Count; i++)
{
DataRow dr = tblData.Rows[i];
slides[i] = new AjaxControlToolkit.Slide(
dr["ImageUrl"].ToString(),
dr["FirstName"].ToString(),
dr["LastName"].ToString());
}
return slides;
}
ASPX
Page shows the image
<asp:Image ID="imgShowImage" runat="server"
Height="300px" ImageAlign="Middle" />
This all works fine/ but when i set up the web config with Intelligencia.UrlRewriter code the slideshow images do not appear but the page gets divirted correctly
<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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<WebMethod()> _
Public Function GetSlides() As AjaxControlToolkit.Slide()
Dim Connection As SqlConnection
[code]...
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Apr 29, 2010[Code]....
i am using asp.net with c#, i have table images
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When i click next i want to display 2 , 3 , 4 , 5.
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AJAX :: Slideshow Using Access Or Sql Database To Obtain Image Names?
Oct 27, 2010I've watched the Slideshow videos and created a number of examples that run fine. The code I've attached at the bottom is the smallest one, but instead of hard coding the image locations, I would like to select the slides from either of the following statements, which return the top 5 images selected randomly from our floorplans database.
<asp:AccessDataSource id="AccessDataSource1" runat="server" DataFile="../fpdb/J3_2005.mdb" SelectCommand="SELECT TOP 5 [Elev_Pimage] FROM [PLANS_Active] ORDER BY RND(INT(NOW*[SF_Total])-NOW*[SF_Total])" />
or,
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:J3_2005Slideshow %>" ProviderName="<%$ ConnectionStrings:J3_2005Slideshow.ProviderName %>" SelectCommand="SELECT TOP 5 [Elev_Pimage] FROM [PLANS_Active] ORDER
BY RND(INT(NOW*[SF_Total])-NOW*[SF_Total])" />
<title>SlideShow</title>
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Mar 8, 2010I have this slideshow extender that works perfectly with hard coded images in the page method. However as soon as I try to make the page method get its images from the database it stops working; no images are returned.
I have tried to declare the datatable that the pagemethod uses both inside the pagemethod and in the on_load event. When in the last case I test the datatable contents by hooking it up to a gridview, it shows that it does get its proper data.
Declaring this dataTable as a private static dataTable, outside the page_load, to make it accessible in the page method (like in this --- post http://forums.asp.net/p/1115257/1726736.aspx---) also does not work.
So the page method with hard coded images works and also the query to the database works!
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"Microsoft
SQL Server 2008 (SP1) - 10.0.2531.0 (X64) Mar 29 2009 10:11:52 Copyright (c) 1988-2008 Microsoft Corporation Standard Edition (64-bit) on Windows NT 6.0 <X64> (Build 6002: Service Pack 2)"
I found few solutions like mentioned here http://support.microsoft.com/kb/967618 But thats for 2005. Surprisingly, already solved error for 2005 coming for 2008.
Non-negative number required.
Parameter name: value
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentOutOfRangeException: Non-negative
number required.
Parameter name: value
Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace: [ArgumentOutOfRangeException: Non-negative number required.
Parameter name: value]
System.IO.MemoryStream.set_Position(Int64 value) +10435528
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<%: (Model.Blog.BlogDetail)%>
Create Image Slideshow Where Image Path / URL Comes From Database
Apr 6, 2012How to create image slide show where image path/url comes form database, using asp .net c#..
View 1 RepliesWeb Forms :: How To Get Images From A Database Using LINQ To SQL
Jun 26, 2010I have a table users which has a column called PHOTO and a datatype of varbinary(MAX)... I have successfully stored image from the database now how do i retrieve it
This is the code which i used to store images in a database
[Code]....
Web Forms :: Upload Two Images Into Sql Database?
Mar 2, 2011I have a problem with file upload... Im trying to upload two images into sql database.. First i tryied to upload pictures on the single web form..
Everything worked fine, but now I have 2 web forms where Im trying to upload images on the both pages and the problem is that i can not upload all of the pictures i choosed... Some of the images uploaded no problem but on some of them show up server connection lost can not connect to server..
Web Forms :: Retrieve Images From Database?
Nov 10, 2010i have made a webpage for user registration where i have to save image of user in data base which i have done successfully but i am unable to retrieve that image
View 4 RepliesWeb Forms :: Showing Images From A SQL Database With A GridView?
Mar 21, 2010I'm trying to show images that come from a sql query into a GridView column, the problem is that the best solution found in the web searches the database twice for each row.
This solution says that we have to first create a handler (ImageHandler.ashx),
It will receive the ID of the row that contains the image, and then query the database with that ID.
Then it will finally perform something like "context.Response.BinaryWrite((byte[])dReader["Photo"]);" (in this case the handler uses a DataReader, I guess we could use another approach)
We also have to declare the image column in the markup as:
<asp:TemplateField HeaderText="Image">
<ItemTemplate>
<asp:Image ID="Image1" runat="server" ImageUrl='<%# "ImageHandler.ashx?ID=" + Eval("ID")%>' />
</ItemTemplate>
</asp:TemplateField>
The problem is that, the Grid is bound to a SqlDataSource with a SelectCommand like: "Select ID, Name, Photo FROM Employees", that is already querying the database, then the GridView will execute the handler with the ID in it's query string, so the handler will query the database again for the same row, to extract the image.
Isn't there a way to send the image to the handler, so that it only performs the instruction "context.Response.BinaryWrite..." without having to query the database again?