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POHow to retrieve images from SQL Server database into WPF form?? (LINQ, Databinding, SQL)
 

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  1. POHow to retrieve images from SQL Server database into WPF form?? (LINQ, Databinding, SQL)
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    <p>I have a cheapo window where I insert data into a database. My db-columns are the following:</p> <pre><code>col name(varchar), col age (int), col photo (image) (all NOT NULL) </code></pre> <p>Now I want to retrieve the info from the db into my window. I have a listbox where I retrieve the names like this (LINQ query)</p> <pre><code>public void updateListbox(){ DataClasses1DataContext dc = new DataClasses1DataContext(); var query = from s in dc.tablename select s; _listBox1.ItemsSource = query.ToList(); } </code></pre> <p>My xaml code for binding looks like this:</p> <pre><code>&lt;ListBox ... DisplayMemberPath="Name"/&gt; </code></pre> <p>so the names are now being displayed in the listbox. </p> <p>My next step is to display the image/photo of the representative person that is selected in the listbox on my window/form. I did it with the age property in a textblock like this:</p> <pre><code>&lt;TextBlock ... Text="{Binding ElementName=_listBox1, Path=SelectedItem.Age}" /&gt; </code></pre> <p>but I have no idea how to retrieve the image into my wpf window.</p> <p>I save the image like this</p> <pre><code>byte[] image = File.ReadAllBytes(@imagepath); ... sqlcommandobject.Parameters.Add(new SqlParameter("@Photo", image)); ... </code></pre> <p>by using openFileDialog to load the image(-path) before insterting into the db. Just retrieving is my problem now. I really would like to keep the binding as simple as it is at this moment, but I guess there is no way to retrieve the image by doing something like this:</p> <pre><code>&lt;Image ... Source="{Binding ElementName=_listBox, Path=SelectedItem.Photo}" /&gt; </code></pre> <p>As the binary data has to be converted back to an image object(?), and I'm lost on how to do that and conbine this with the bindings. Anyone have an idea? </p> <p>Thanks for reading!</p>
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