How to convert type to string

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Hello so i'm trying to change convert a type which is :

C#

string img = Convert.ToString(System.Drawing.Image);

and its giving me : Error CS0119 'Image' is a type, which is not valid in the given context

i'm using a sdk and the code is :
FSDK.CImage image = new FSDK.CImage(imageHandle);
System.Drawing.Image frameImage = image.ToCLRImage();
pictureBox1.ImageUrl = frameImage;

What I have tried:

C#

string img = Convert.ToString(System.Drawing.Image);

Posted 17-Mar-22 23:12pm

Natann 022

Updated 20-Mar-22 16:20pm

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Richard Deeming · Accepted Answer · 2022-03-17T23:26:00

The error is quite clear - you're passing a type name to a method which expects an instance of an object.

Pass the actual object you want to convert instead - for example:

C#

System.Drawing.Image image = ...;
string img = Convert.ToString(img);

However, that almost certainly won't do what you want. It will return the result of calling the image's ToString method, which is only going to return the type name. But since you haven't explained precisely what you're trying to do, we can't tell you how to fix that.

TheRealSteveJudge · Accepted Answer · 2022-03-17T23:32:00

Solution 2

You cannot convert a class to a string!
You can only convert an object, which is an instance of a class.
e.g.

C#

var myImage = Image.FromFile("SampleImage.jpg");
var myString = Convert.ToString(myImage)

What are you trying to achieve?

Posted 17-Mar-22 23:32pm

TheRealSteveJudge

Comments

Natann 022 20-Mar-22 22:16pm

to display a image
i'm using a sdk and the code is :
System.Drawing.Image frameImage = image.ToCLRImage();
pictureBox1.ImageUrl = frameImage;

wraithnath · Accepted Answer · 2022-03-18T03:36:00

If you want to store and load image data in a string you could use this code:

C#

private string SaveImage(Image image)
{
    using (MemoryStream m = new MemoryStream())
    {
        image.Save(m, image.RawFormat);

        byte[] imageBytes = m.ToArray();

        return Convert.ToBase64String(imageBytes);
    }
}

private Image LoadImage(string base64)
{
    byte[] bytes = Convert.FromBase64String(base64);

    Image image;

    using (MemoryStream ms = new MemoryStream(bytes))
    {
        image = Image.FromStream(ms);
    }

    return image;
}

How to convert type to string

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