Binding image in asp net mvc4 from a byte array

Introduction

ASP.NET is a popular programming language used for building web applications. One common task in web is binding an image in ASP.NET MVC4 from a byte array. In this article, we will explore how to achieve this with examples.

Step 1: Convert Byte Array to Base64 String

we can bind the image in ASP.NET MVC4, we need to convert the byte array to a Base64 string. This can be done the following code:


byte[] byteArray = // your byte array here
string base64String = Convert.ToBase64String(byteArray);

Step 2: Display the Image in the View

Once we have the Base64 string, we can display the image in the ASP.NET MVC4 view. Here's an example of how to do this:


@{
    string imageSource = "data:image/png;base64," + base64String;
}
Image

In the above code, we a variable “imageSource” which the Base64 string prefixed with the appropriate image format. We then use the “img” tag to display the image, the “src” attribute to the “imageSource” variable.

Step 3: Handling Images in the Controller

Now that we have the image displayed in the view, we may need to handle it in the controller. For example, if we want to save the image to a database or perform any other on it. Here's an example of how to handle the image in the controller:


[HttpPost]
public ActionResult SaveImage(string base64String)
{
    byte[] byteArray = Convert.FromBase64String(base64String);
    // perform operations on the byte array
     RedirectToAction("");
}

In the above code, we create an action method called “SaveImage” which takes the Base64 string as a parameter. We then convert the Base64 string back to a byte array using the “Convert.FromBase64String” method. From there, you can perform any necessary operations on the byte array.

Conclusion

Binding an image in ASP.NET MVC4 from a byte array is a common task in web development. By following the steps outlined in this article, you can easily achieve this functionality in your ASP.NET MVC4 applications. Remember to convert the byte array to a Base64 string, display the image in the view, and handle the image in the controller as needed.

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