Generic function to display images on webpage asp.net


Hi fellas,

I am writing this post after a long time. This new year I am back at blogging to help the software developers in writing better code .

Ever need of a generic/common function to display the images on website?
In normal practice, whenever we need to show an image, we used to directly write
Image.Src= “/userfiles/abc.jpg”;

This can be painful sometimes if your folder path gets changed,  in that case you need to replace the folder (userfiles) everywhere.

Smart and better way is to create a common function that will display images. What you need to do is to call this method every time.


Method:

public string ShowImage(string ImageName)
{
string ReturnVal = string.Empty;

if (File.Exists(System.Web.HttpContext.Current.Server.MapPath(“~/userfiles/” + ImageName)) == true)
{
ReturnVal = VirtualPathUtility.ToAbsolute(“~/userfiles/” + ImageName);
}
else
{
ReturnVal = VirtualPathUtility.ToAbsolute(“~/Images/ImageNotAvailable.jpg”);
}

return ReturnVal;
}


Usage:

imgThumbnail.ImageUrl = ShowImage(“abc.jpg”);


Explanation:

This method, takes a string parameter as image name to display. Then it checks that if the particular image exists or not.
If the image exists on the specified path then it returns the image name with full path (userfiles/abc.jpg) else it returns the alternate image path, which is imageNotAvailable.jpg.

This way if the image is not founded on server then user will be shown a imageNotAvailable.jpg

Thats it for now.

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About dotnetcoderoom

Working as an Onsite coordinator in USA. Handling UAT, CR (Change Requests), Product Support/Development, Build Management. Supervise and assist in live product implementation (at client side) and training. Providing technical direction for the development, design, and system integration. Closely monitoring and working with offshore team for Enhancements, Bug Fixing, Enforce coding standards, perform code reviews and mentors junior developers. Proven track of timely delivery of enterprise level web based applications. Skilled in a variety of software languages, tools, and methodologies, with a special expertise in Microsoft .NET technologies. MCTS .Net 4.0 Web applications MCTS .Net 2.0 Web applications GNIIT, MCA, B.Com Specialties 8+ Years of experience in .NET Technologies. Expertise in .NET, ASP.NET, MVC, C#, VB.NET, WCF, Web Services, MS SQL, JQuery. Excellent R&D and troubleshooting skills. Extensive knowledge in E-Commerce and Healthcare domain. View all posts by dotnetcoderoom

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