- Details
- Written by: Stanko Milosev
- Category: C#
- Hits: 3876
using System; using System.Collections.Specialized; using System.Configuration; namespace CustomConfig { class Program { static void Main(string[] args) { MilosevBlogConfig links = (MilosevBlogConfig)ConfigurationManager.GetSection("milosev.com"); string homePage = ConfigurationManager.AppSettings.Get("homePage"); Console.WriteLine("Home page: " + homePage); foreach (MilosevBlogCategoriesElement link in links.MilosevBlogInstances) { Console.WriteLine("Blog category: " + link.BlogCategory); } Console.WriteLine("Press any key..."); Console.ReadKey(); } } public class MilosevBlogCategoriesElement : ConfigurationElement { [ConfigurationProperty("BlogCategory", IsKey = true, IsRequired = true)] public string BlogCategory { get { return (string)base["BlogCategory"]; } set { base["BlogCategory"] = value; } } } public class MilosevBlogCategoriesElementCollection : ConfigurationElementCollection { public MilosevBlogCategoriesElement this[int index] { get { return (MilosevBlogCategoriesElement)BaseGet(index); } set { if (BaseGet(index) != null) BaseRemoveAt(index); BaseAdd(index, value); } } protected override ConfigurationElement CreateNewElement() { return new MilosevBlogCategoriesElement(); } protected override object GetElementKey(ConfigurationElement element) { return ((MilosevBlogCategoriesElement)element).BlogCategory; } } public class MilosevBlogConfig : ConfigurationSection { [ConfigurationProperty("categories")] [ConfigurationCollection(typeof(MilosevBlogCategoriesElementCollection))] public MilosevBlogCategoriesElementCollection MilosevBlogInstances { get { return (MilosevBlogCategoriesElementCollection)this["categories"]; } } } }App.config should look like this:
<?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="milosev.com" type="CustomConfig.MilosevBlogConfig, CustomConfig"></section> </configSections> <milosev.com> <categories> <add BlogCategory="csharp"/> <add BlogCategory="asp.net MVC"/> </categories> </milosev.com> <appSettings> <add key="homePage" value="http://milosev.com/" /> </appSettings> <startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" /> </startup> </configuration>POI in App.config:
<configSections> <section name="milosev.com" type="CustomConfig.MilosevBlogConfig, CustomConfig"></section> </configSections>Where MilosevBlogConfig looks like:
public class MilosevBlogConfig : ConfigurationSection { [ConfigurationProperty("categories")] [ConfigurationCollection(typeof(MilosevBlogCategoriesElementCollection))] public MilosevBlogCategoriesElementCollection MilosevBlogInstances { get { return (MilosevBlogCategoriesElementCollection)this["categories"]; } } }Source code you can download from here.
- Details
- Written by: Stanko Milosev
- Category: C#
- Hits: 2960
static void Main(string[] args) { int[] gapNumbers = new int[] { 1, 3, 4, 7, 8, 10 }; foreach (int number in FillTheGap(gapNumbers)) { Console.WriteLine(number); } Console.ReadKey(); } private static IEnumerable<int> FillTheGap(int[] gapNumbers) { int prevNumber = 1; foreach (int number in gapNumbers) { if (prevNumber == number) { yield return number; } else { for (; prevNumber < number; prevNumber++) { yield return prevNumber; } yield return number; } prevNumber++; } }POI:
foreach (int number in FillTheGap(gapNumbers))
- Details
- Written by: Stanko Milosev
- Category: C#
- Hits: 3004
public void ResizeImage(string originalFilename, string saveTo, int canvasWidth, int canvasHeight) { try { Image image = Image.FromFile(originalFilename); Image thumbnail = new Bitmap(canvasWidth, canvasHeight); Graphics graphic = Graphics.FromImage(thumbnail); graphic.InterpolationMode = InterpolationMode.HighQualityBicubic; graphic.SmoothingMode = SmoothingMode.HighQuality; graphic.PixelOffsetMode = PixelOffsetMode.HighQuality; graphic.CompositingQuality = CompositingQuality.HighQuality; int originalWidth = image.Width; int originalHeight = image.Height; double ratioX = canvasWidth / (double)originalWidth; double ratioY = canvasHeight / (double)originalHeight; double ratio = ratioX < ratioY ? ratioX : ratioY; int newHeight = Convert.ToInt32(originalHeight * ratio); int newWidth = Convert.ToInt32(originalWidth * ratio); int posX = Convert.ToInt32((canvasWidth - (originalWidth * ratio)) / 2); int posY = Convert.ToInt32((canvasHeight - (originalHeight * ratio)) / 2); graphic.Clear(Color.White); // white padding graphic.DrawImage(image, posX, posY, newWidth, newHeight); ImageCodecInfo[] info = ImageCodecInfo.GetImageEncoders(); EncoderParameters encoderParameters; encoderParameters = new EncoderParameters(1); encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, 100L); int OrientationKey = 0x0112; const int NotSpecified = 0; const int NormalOrientation = 1; const int MirrorHorizontal = 2; const int UpsideDown = 3; const int MirrorVertical = 4; const int MirrorHorizontalAndRotateRight = 5; const int RotateLeft = 6; const int MirorHorizontalAndRotateLeft = 7; const int RotateRight = 8; if (image.PropertyIdList.Contains(OrientationKey)) { if (image.PropertyIdList.Contains(OrientationKey)) { var orientation = (int)image.GetPropertyItem(OrientationKey).Value[0]; switch (orientation) { case NotSpecified: // Assume it is good. case NormalOrientation: // No rotation required. break; case MirrorHorizontal: thumbnail.RotateFlip(RotateFlipType.RotateNoneFlipX); break; case UpsideDown: thumbnail.RotateFlip(RotateFlipType.Rotate180FlipNone); break; case MirrorVertical: thumbnail.RotateFlip(RotateFlipType.Rotate180FlipX); break; case MirrorHorizontalAndRotateRight: thumbnail.RotateFlip(RotateFlipType.Rotate90FlipX); break; case RotateLeft: thumbnail.RotateFlip(RotateFlipType.Rotate90FlipNone); break; case MirorHorizontalAndRotateLeft: thumbnail.RotateFlip(RotateFlipType.Rotate270FlipX); break; case RotateRight: thumbnail.RotateFlip(RotateFlipType.Rotate270FlipNone); break; default: throw new NotImplementedException("An orientation of " + orientation + " isn't implemented."); } } } //thumbnail.RotateFlip(RotateFlipType.Rotate90FlipNone); thumbnail.Save(saveTo, info[1], encoderParameters); Debug.WriteLine($"Thumbnail from file: {originalFilename} created in {saveTo}"); } catch (Exception e) { Debug.WriteLine($"Error creating thumbnail: {e.Message}"); } }POI:
int OrientationKey = 0x0112; const int NotSpecified = 0; const int NormalOrientation = 1; const int MirrorHorizontal = 2; const int UpsideDown = 3; const int MirrorVertical = 4; const int MirrorHorizontalAndRotateRight = 5; const int RotateLeft = 6; const int MirorHorizontalAndRotateLeft = 7; const int RotateRight = 8; if (image.PropertyIdList.Contains(OrientationKey)) { if (image.PropertyIdList.Contains(OrientationKey)) { var orientation = (int)image.GetPropertyItem(OrientationKey).Value[0]; switch (orientation) { case NotSpecified: // Assume it is good. case NormalOrientation: // No rotation required. break; case MirrorHorizontal: thumbnail.RotateFlip(RotateFlipType.RotateNoneFlipX); break; case UpsideDown: thumbnail.RotateFlip(RotateFlipType.Rotate180FlipNone); break; case MirrorVertical: thumbnail.RotateFlip(RotateFlipType.Rotate180FlipX); break; case MirrorHorizontalAndRotateRight: thumbnail.RotateFlip(RotateFlipType.Rotate90FlipX); break; case RotateLeft: thumbnail.RotateFlip(RotateFlipType.Rotate90FlipNone); break; case MirorHorizontalAndRotateLeft: thumbnail.RotateFlip(RotateFlipType.Rotate270FlipX); break; case RotateRight: thumbnail.RotateFlip(RotateFlipType.Rotate270FlipNone); break; default: throw new NotImplementedException("An orientation of " + orientation + " isn't implemented."); } } }With this code I was checking if image has to be rotated. Example application (at this moment still under development), you can see on my GitHub.
- Details
- Written by: Stanko Milosev
- Category: C#
- Hits: 943
using System; using System.Collections.Generic; using System.Windows.Forms; namespace UltraGridHierarchical { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { List<MyChild> stankosKids = new List<MyChild>(); stankosKids.Add(new MyChild {Name = "Velimir", Gender = "Male"}); stankosKids.Add(new MyChild {Name = "Hilda", Gender = "Female"}); List<MyChild> arnoldsKids = new List<MyChild>(); arnoldsKids.Add(new MyChild {Name = "Thomas", Gender = "Male"}); arnoldsKids.Add(new MyChild {Name = "Sabrina", Gender = "Female"}); List<MyChild> chucksKids = new List<MyChild>(); chucksKids.Add(new MyChild {Name = "Bruce", Gender = "Male"}); chucksKids.Add(new MyChild {Name = "Lee", Gender = "Female"}); List<MyParent> list = new List<MyParent>(); list.Add(new MyParent {ID = 1, FirstName = "Stanko", LastName = "Milosev", Address = "Herseler strasse 8", MyKids = stankosKids}); list.Add(new MyParent {ID = 2, FirstName = "Arnold", LastName = "Schwarzeneger", Address = "Whitehouse 1", MyKids = arnoldsKids}); list.Add(new MyParent {ID = 3, FirstName = "Chuck", LastName = "Norris", Address = "Las Vegas", MyKids = chucksKids}); ultraGrid1.SetDataBinding(list, null); } public class MyParent { public int ID { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public string Address { get; set; } public List<MyChild> MyKids { get; set; } } public class MyChild { public string Name { get; set; } public string Gender { get; set; } } } }Source code.