.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

Web Q&A: Image Map Tooltips, Mouseover Effects, Script Execution Order, XML Schemas, and More

Posted By:      Posted Date: August 21, 2010    Points: 0   Category :ASP.Net

More Related Resource Links

Show hyperlink and popup window when Mouseover on image !

Hello , I am developing a web application using asp.net, telerik RadAjax control. I have to need to develop when mouseover the image then show a hyperlink and when click the clink then open a new window(like facebook profile picture change). Please Help me...

Get Cursor when mouseover Image



I have an image that is possible to click an open up a new browser with the code below.

I wonder how it could be possible to have a cursor over the image when mouseover. I cant find any mouseover event for the image?


<asp:Image ID="Image176" runat="server" Height="64px" Width="140px" 
          onclick="window.open('http://www.webpage.aspx','Popup', ' resizable,scrollbars,dependent,status, width=1040,height=650,left=0,top=0');" />


Binding execution order problem?



I'm developing DataGridTreeViewItem custom control which task is to display some icon and title. This control should be placed in TemplateColumn of wpf DataGrid.

Here is the code:

<wpfToolkit:DataGridTemplateColumn Header="Entire Network" Width="Auto" MinWidth="200">

Insert into select order of execution


If I have the following query

SELECT Column1 FROM Table2
How is it executed? Is the Select completed and stored in tempdb then inserted into Table1? Or does it select a row/batch then insert it going back and forth as the result set from the select statement is built?

How to change image with mouseover event


Hello all,

I am trying to make a dynamic image loader the simplest and easiest way possible. I'd like to have 3 to 4 html links that have a .net onmouseover and onmouseout event that loads an image in a seperate part of the page.

So far I am struggling with even getting this started. Any advise?

Here is what I have so far:

<a href="MyPage.aspx" onmouseover="LoadOverviewImage" runat="server">MyPage</a>

My thinking on this is that the "loadOverviewImage" will run a c# function that will control the image modification on the mouse over and off.


How to convert image class object to byte type in order to insert database


I am trying to resize images after uploading and than inserting them into my database.

Dim newMainImage As System.IO.Stream = System.IO.Stream.Null
resizedMainImage.Save(newMainImage, jgpEncoder, myEncoderParameters)
Dim newMain As Image = Image.FromStream(newMainImage)

I was able to resize it however I couldnt find a way to convert image object to byte() in order to

I need something like

Dim ImageContent(newMain.ContentLength - 1) As Byte

newMain.InputStream.Read(ImageContent, 0 , newMain.ContentLength)

I need to convert image object to a file type in order to get its contentlenght and use .inputStream.Read function. Or is there any other way?

Get latest file name using SSIS script task: Error while execution


Hi  , I am trying to get the latest file name to process files in SSIS using vb.net code . I did set the varible in the For each loop container and assigned the variable in my file connection. I have been receiving this error msg.: Please help me out.

Error: 0x2 at Get File Name: The script threw an exception: The element cannot be found in a collection. This error happens when you try to retrieve an element from a collection on a container during execution of the package and the element is not there.

Task failed: Get File Name

Warning: 0x80019002 at Foreach Loop Container: SSIS Warning Code DTS_W_MAXIMUMERRORCOUNTREACHED. The Execution method succeeded, but the number of errors raised (1) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.

SSIS package "testpackage.dtsx" finished: Failure.


GridView Parent Child View with JQuery Effects

I was just checked how to add some more cool effects to the GridView control using JQuery. In this post I will display parent-child data in the GridView control with some help of the wonderful JQuery library.

Let's first populate the GridView control.

Built-in Functions - Text and Image Functions in SQL Server

Text and image functions operate on TEXT, NTEXT and IMAGE data types. These data types are deprecated with SQL Server 2005 and should be replaced by VARCHAR(MAX), NVARCHAR(MAX) and VARBINARY(MAX) when possible. Alternatively you can also consider storing large string values using XML data type. Text and image functions are nondeterministic.

Future versions of SQL Server will not support TEXT, NTEXT and IMAGE data types. Columns with TEXT / NTEXT data type do not support commonly used string functions such as LEN, LEFT, RIGHT, etc. Furthermore, due to the large size of TEXT data you''re likely to see performance issues if you store such data in the database. However, at times you can''t help but use the TEXT / NTEXT / IMAGE data types (for example when supporting 3rd party databases when you cannot change the schema) - this is when text and image functions come in handy.

Rendering ASP.NET Script References into the Html Header

One thing that I've come to appreciate in control development in ASP.NET that use JavaScript is the ability to have more control over script and script include placement than ASP.NET provides natively. Specifically in ASP.NET you can use either the ClientScriptManager or ScriptManager to embed scripts and script references into pages via code.

Program for Format Conversion of An Image

.NET provides extensive support for image conversion. Any image can be processed from one format to another. Most common formats to which .NET have support for are .BMP, .EMF, .GIF, .ICO, .JPG, .PNG, .TIF and .WMF.

Configuring Profile Image Export in SharePoint 2010

It's no secret that I am thrilled with the new social features of SharePoint 2010. I am most excited about the new Profile Picture handling. I strongly believe that the more we can show the faces of our colleagues to one another the more connected we will feel. Clearly Microsoft feels that way as witnessed by the many features that make use of the Profile Image like the Activity Feed and Colleagues list

Built-in Functions - Text and Image Functions

Text and image functions operate on TEXT, NTEXT and IMAGE data types. These data types are deprecated with SQL Server 2005 and should be replaced by VARCHAR(MAX), NVARCHAR(MAX) and VARBINARY(MAX) when possible. Alternatively you can also consider storing large string values using XML data type. Text and image functions are nondeterministic.

ASP.Net Upload Image to MS Access Database

As you learnt from the previous articles to upload image to the SQL Database in ASP.Net 2.0 and stream that image into the memory to retrieve it from the database and display it on the web page. In this article you will learn how to upload images to the MS Access database in ASP.Net 2.0

First of all create an Access Database and place it in the App_Data folder of ASP.Net web site project. Then create a table "tblImg" with the following fields:

Get pixel format, raw format, property id list and property items image in VB.net - C#.net.

n this simple article you will learn that how we can get pixel format, raw format, property id list and property items image in VB and C#.net.

Get Pixel Format:

Image consists of pixels to get the format of the pixel we have a property named pixel format. This property returns an enumeration of pixel format. This enumeration tells the pixel format.

To demonstrate make a window application. Drag one button and a picture box on form.

Now write the following code on Button click event:

*.axd script references not being rendered to browser


I'm running VS2010 with .net 4.0, and am running into issues with the .net ajax script tags mysteriously not being rendered to the browser.

So far I've reduced it to a scenario where I set the DataSourceID property of a databound control.  More specifically, I've only tested it on a Gridview and a DropDownList.

This can be reproduced fairly easily on my machine by following these steps:

1. Create a new empty Web Application Project

2. Create a new Web Form

3. Add a ScriptManager inside the form

4. Add a DropDownList and a DataSource (I used an ObjectDataSource)

5. Set the DataSourceID property of the DropDownList to the ID of the DataSource.  This can be done either declaratively on the .aspx page, or in the code behind in the aspx.cs page, and both produce the same results.

6. Open the page in a browser and watch as you get a javascript error stating "Sys is not defined" and notice that the page source contains no script tags referencing *.axd scripts.

Here's my source code showing my set up:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="ScriptResourceFAIL.Default" %>


slideshow image gallary using jQuery



i need a gallary like following link.


actually,i bound multiple image in a gridview using handler(.ashx).

for example,in one dep_id(1),there are 6 image and i need to slideing one by one.

could some one help me,how i can do like this?

i think is it easy in jquery.

please someone help me.

Thanking you.

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend