Luna Posts - Answer Overflow

Luna

•Created by Luna on 10/9/2024 in #help

Save an image to a mysql

cmd = new MySqlCommand(query, con); cmd.Parameters.AddWithValue("@image", client.Image); I tried this method, but saved "System.Image.bitmap" on the database How can I save the image to the mysql database?

38 replies

CC#

•Created by Luna on 10/4/2024 in #help

✅ What is the difference?

3 replies

CC#

•Created by Luna on 9/11/2024 in #help

Validate datagridview cell values

6 replies

CC#

•Created by Luna on 6/4/2024 in #help

✅Refactor C# code

guys my code works, but i'm doubting that i made the most performant way to do it

        public struct Proc
        {
            public string Name;
            public int ID;
            public string? Owner;
        }
....................
  public static void SaveAppsList()
        {
            if (File.Exists(FILE_PATH)) File.Delete(FILE_PATH);

            using StreamWriter writer = new(FILE_PATH);
            foreach (Proc item in ListOfProcs)
                writer.WriteLine($"{item.ID}^{item.Name}^{item.Owner}");
        }
        public static void LoadAppsList()
        {
            if (!File.Exists(FILE_PATH)) return;
            string readText = File.ReadAllText(FILE_PATH);

            if (readText.Trim() == string.Empty) return;

            readText = readText.Replace("\r\n", "\n");
            List<string> lines = [.. readText.Split('\n')];
            foreach (string line in lines)
            {
                if (line.Trim() == string.Empty) continue;
                string[] processInfo = line.Split('^');
                Proc proc = new()
                {
                    ID = int.Parse(processInfo[0]),
                    Name = processInfo[1],
                    Owner = processInfo[2]
                };
                ListOfProcs.Add(proc);
            }
        }

        public struct Proc
        {
            public string Name;
            public int ID;
            public string? Owner;
        }
....................
  public static void SaveAppsList()
        {
            if (File.Exists(FILE_PATH)) File.Delete(FILE_PATH);

            using StreamWriter writer = new(FILE_PATH);
            foreach (Proc item in ListOfProcs)
                writer.WriteLine($"{item.ID}^{item.Name}^{item.Owner}");
        }
        public static void LoadAppsList()
        {
            if (!File.Exists(FILE_PATH)) return;
            string readText = File.ReadAllText(FILE_PATH);

            if (readText.Trim() == string.Empty) return;

            readText = readText.Replace("\r\n", "\n");
            List<string> lines = [.. readText.Split('\n')];
            foreach (string line in lines)
            {
                if (line.Trim() == string.Empty) continue;
                string[] processInfo = line.Split('^');
                Proc proc = new()
                {
                    ID = int.Parse(processInfo[0]),
                    Name = processInfo[1],
                    Owner = processInfo[2]
                };
                ListOfProcs.Add(proc);
            }
        }

btw, i hate my own code, i know i can do better, but idk how

11 replies

CC#

•Created by Luna on 5/24/2024 in #help

✅ Detect the user name who started the process

15 replies

CC#

•Created by Luna on 7/3/2023 in #help

✅Modifying visual elements created in runtime

i'll send a snippet of my code

void x(){
  TabPage tp = new TabPage("example");
  TextBox tb = new TextBox();
  tb.Text = "wasd";
  tb.Dock = DockSytle.Fill;
  tp.Controls.Add(tb);

  tabControl1.TabPages.Add(tp);
}

void y(){
  // how can i edit tb in this function
}

void x(){
  TabPage tp = new TabPage("example");
  TextBox tb = new TextBox();
  tb.Text = "wasd";
  tb.Dock = DockSytle.Fill;
  tp.Controls.Add(tb);

  tabControl1.TabPages.Add(tp);
}

void y(){
  // how can i edit tb in this function
}

12 replies

CC#

•Created by Luna on 6/2/2023 in #help

❔ Color of a progressBar in Windows Forms

I have a progress bar in my windows forms and when i change the color (ForeColor, BackColor) in the proprieties menu, and i tried in the runtime too but didnt work in both ways

7 replies

CC#

•Created by Luna on 4/23/2023 in #help

❔ Getting a value from an class in a list that is an attribute from another class

This code is an exmaple

class a{
.............
public List<b> listB { get; set; }
.............
}

public class b{
public int number { get; set; }
public string text { get; set; }
}

class a{
.............
public List<b> listB { get; set; }
.............
}

public class b{
public int number { get; set; }
public string text { get; set; }
}

I have an instance of class a, and I want to get the string text from 1 of the objects in the list List<b> listB how can I do that? I'm new to OOP and making this project to get better

7 replies

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