converting byte array from sql server table to image source Maui

Question

Hi,

I have been struggle for quite àsome time to find a way to retrieve byte array data from sql server and get them as image source for a content view. this is my code :> > ```csharp if (i.ImageCouv !=null)

{

			await Shell.Current.DisplayAlert("EasyManager", "Binaire existant" + i.ImageCouv.Length, "Ok");

}

byte[] imageArray = i.ImageCouv;

MemoryStream memory = new MemoryStream(imageArray);

l.MyImage.Source = ImageSource.FromStream(() => (Stream)memory);

lim.Add(l);

So could some body help me in getting an issue ? I am not really experienced in Net Maui. Lendcap

Answer 1

Hi,

I have been struggle for quite àsome time to find a way to retrieve byte array data from sql server and get them as image source for a content view. this is my code :

try
{
	foreach (var i in prod2)
	{
		var l = new LieuxImDTO();
		l.Adresse = i.Adresse;
		l.Nom = i.Nom;
		l.DateCreat = i.DateCreat;
		l.Id = i.Id;
		l.ImageCouv = i.ImageCouv;
		l.Operateur = i.Operateur;
		l.OwnerId = i.OwnerId;
		l.Reference = i.Reference;
		l.Type = i.Type;

		if (i.ImageCouv !=null)
		{
			await Shell.Current.DisplayAlert("EasyManager", "Binaire existant" + i.ImageCouv.Length, "Ok");
//This help me to really notice that there are data coming back from the server

		}
		byte[] imageArray = i.ImageCouv;
		MemoryStream memory = new MemoryStream(imageArray);
		
		
		l.MyImage.Source = ImageSource.FromStream(() => (Stream)memory);
		
		lim.Add(l);

	}
}
catch (Exception ex)
{
	await Shell.Current.DisplayAlert("EasyManager", ex.Message, "Ok");
//Here the exception is : Object reference not set to an instance of an object
	return null;
}
			

So could some body help me in getting an issue ? I am not really experienced in Net Maui.

Lendcap

Answer 2

Hi, the issue was in the using of Image rather than ImageSource. It is now oK. But could someone tell me now that i can display an image in the contentview How can i let the user manipulate that image which is an element in a collectionview. Thank's Lendcap