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POc# singleton winform load/unload images
 

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  1. POc# singleton winform load/unload images
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    <p>I have a winform application. The main form is singleton and it loads a lot of images. The images represents products, and every time I click on a image, I modify the stock of the product and reload the hashtable of products and the images. </p> <p>The issue is with every time I reload the hashtable of products from BBDD and reloads the images. At the end of the day, the application drains a lot of memory and I don't know when and how to unload the images in order to reload (because some times I can modify the image and I have to reload too)</p> <p>The code that reloads the hashtable and the buttons is:</p> <pre><code>Family fam = new Family(); List&lt;Family&gt; listFamilies = fam.loadFamilies(); htProducts.Clear(); foreach(Family family in listFamilies) { //reload all the products of each family if(htProducts[family.idFamily]==null) { List&lt;Product&gt; listProducts= fam.loadProductsFamily(family.idFamily); htProducts[family.idFamily] = listProducts; } Button bt = new Button(); bt.location = new Point(x,y); //The buttons are created dinamically bt.Parent = panelFamilies;//I have all the buttons inside a panel. try { if(family.urlImage !="") { bt.Text=family.Name; bt.Image = new Bitmap(family.urlImage); } } catch(Exception ex) { .... } } </code></pre> <p>When I click on a Family button it loads the products of that family but the code is more or less the same. And it loads images too.</p> <p>More ore less this is the code. The problem is that everyTime I click on a button, I load more buttons with the products and loads images. </p> <p>A lot of times I reload the singleton form and executes the previous code, and load the images again and drains the memory.</p> <p>¿When and how I have to unload the images?</p> <p>EDIT: </p> <p>I've added the following code before loading again the buttons with the images:</p> <pre><code>foreach (Control c in panel8.Controls) { if (c is Button) c.Dispose(); } GC.Collect(GC.MaxGeneration);// I think that isn't correct to use because I've read, but reduces the memory. </code></pre> <p>It will dispose all the buttons and images of the panel and reduce the memory before load the images again?</p> <p>btw sorry for my english :(</p> <p>Thanks a lot.</p>
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    1. COWell how about showing some code.. we are not mind readers her..
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    2. COYou really need to go into more depth about what you're trying to do. Explaining what you've looked into so far & providing some code would go a long way.
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    3. COyes sorry, I've updated the explanation with some code.
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