Add Static Image on the Home Screen in Visual Studio LightSwitch

Vineet Kumar Saini
13y
13.7k
0
0

Article

The home screen is the first screen in a LightSwitch application at run time. When we run the LightSwitch application then open the first screen i.e. called "Home Screen". We can use a static image on the home screen in our LightSwitch application.

A Home screen is the starting page of LightSwitch application
A Home screen contains the information of a website
There may be many links in a Home screen to other part of web site
Home screen is initial page which WWW browser shows? covering page of the web site? or web pages on the whole?
For a Web site developer, a home screen is the first page presented when a user selects a site or presence on the World Wide Web. It most often refers to the initial or main web page of a web site, sometimes called the front page

Step by step solution

Step 1 : Open Visual Studio LightSwitch->Right click on screen->Add screen.

Step 2 : Select list and details screen->Write screen name( Home)->Screen data (None)->Ok.

Step 3 : Click on home screen properties.

Step 4 : Select screen navigation->Select Home->Click on set.

Step 5 : Add new group in home layout.

Step 6 : Now add data item->Select local property->Type (image)->Name (Image_Logo)->Ok.

Step 7 : Move Image_Logo from Home screen to columns layout.

Step 8 : Expand image logo->Select image viewer.

Step 9 : Go to image logo property->Select control type (image viewer) and label position (none).

Step 10 : Click write code->Select Home_InitializeDataWorkspace.

Code :

using System;
using System.Linq;
using System.IO;
using System.IO.IsolatedStorage;
using System.Collections.Generic;
using Microsoft.LightSwitch;
using Microsoft.LightSwitch.Framework.Client;
using Microsoft.LightSwitch.Presentation;
using Microsoft.LightSwitch.Presentation.Extensions;
namespace LightSwitchApplication
{
    public partial class Home
    {
        partial void Home_InitializeDataWorkspace(List<IDataService> saveChangesTo)
        {
            // Write your code here.
            Image_Logo = GetImageByName("welcome.jpg");
        }
        private byte[] GetImageByName(string fileName)
        {
            System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
            Stream stream = assembly.GetManifestResourceStream(fileName);
            return GetStreamAsByteArray(stream);
        }
        private byte[] GetStreamAsByteArray(System.IO.Stream stream)
        {
            int streamLength = Convert.ToInt32(stream.Length);
            byte[] fileData = new byte[streamLength];
            stream.Read(fileData, 0, streamLength);
            stream.Close();
            return fileData;
        }
    }
}