Give the Picture-Variable the name of the picture via a string?

Getting Started
1

I have a Picture in an ImageView:
ImageView_Artikel1.Picture

I load a .csv file into my project, extract the names of the articles and want to load the pictures with this name.
The pictures are in my Xojo project. I drag & drop it into the project.

When I’m using this, it works:

ImageView_Artikel1.Picture = H8-HK13234

But the problem is, I have the names in strings, and want to give the pictures the names.

DIM String_NameBild1 As String
String_NameBild1 = “H8-HK13234.png”

ImageView_Artikel1.Picture = String_NameBild1

But then I got a type mismatch.

How can I give the Picture-Variable the name of the picture via a string?

2

That’s not possible.

3

Because you are trying to assign a String Object (String_NameBild1) to a Picture Object (ImageView_Artikel1.Picture).

4

But you could f.e. create an Array of Pictures and Strings and store and store each there.

Like this:
thePicture(1) = H8-HK13234
thePictureName(1) = “H8-HK13234.png”

If you later use thePicture(1), you know that thePictureName(1) contains the Name of the Picture.

5

[quote=210876:@Thomas Mueller]I have a Picture in an ImageView:
ImageView_Artikel1.Picture

I load a .csv file into my project, extract the names of the articles and want to load the pictures with this name.
The pictures are in my Xojo project. I drag & drop it into the project.

When I’m using this, it works:

ImageView_Artikel1.Picture = H8-HK13234

But the problem is, I have the names in strings, and want to give the pictures the names.
[/quote]

Use a dictionary. It will let you store the picture in a string key.

6

I am unsure, but why don’t you load the image from the Photos_Articles folder using its name and then set this to ImageView_Artikel1.Picture ?

Open the image from its folder (path to the Photos_Articles folder folder .Child ) into a local Picture variable
then apply that local Picrure variable to ImageView_Artikel1.Picture.

Ask for more details if not enough.

7

Because at the opening of the app, I don’t know, which photos I’ll need.

The .csv - file with the names shows me, what pictures I have to load and show.

8

So you need code that does something like

  1. read csv to get the name of the picture file on disk to load
  2. load the picture by name from disk

I have no idea how your code works
But lets say you get a string variable, called PictureName, with the name of the picture in it

Then something along the lines of

   dim fi as folderitem = GetFolderItem(PictureVariable)
    dim p as picture = Picture.Open(fi)
    ImageView_Artikel1.Picture = p
9

[quote=210926:@Thomas Mueller]Because at the opening of the app, I don’t know, which photos I’ll need.

The .csv - file with the names shows me, what pictures I have to load and show.[/quote]
Yes, but you have all the images handly, somewhere in a defined folder.

So, you define a FolderItem that point to that folder and define a FolderItem for this image using f.Child(ImageName) … then you load it.

Norman simili code looks what I had in mind (but was not really able to explain yesterday).

If this is not enough, explain why / explain from where you take the image to display and we may be able to give a better hint.

10

I would create a class for this. Give the class two properties: picture and string

11

Perhaps the solution would be, that I don’t drag & drop the pictures into the project.

Now, I think the better way would be: I upload the pictures to an apache server, and load them - when I need them.

But I don’t know how I can load an external picture into a image.

EDIT: Ok, got it: with the .URL = “”, I can load external pictures. :slight_smile:

12

That way is the fastest display, and it does not tax the app resources. That is what I usually do.

13

I like this . as sometimes so many picutures,I just don’t want to drag it one by one. and want to all images from some folder.

14

but which version ‘s Picture has a property of “URL” ,???

15

This refers to a WebImageView. In Xojo Web.

16

that[quote=303769:@Michel Bujardet]This refers to a WebImageView. In Xojo Web.[/quote]

that’s ok,thanks