96 lines
2.1 KiB
C#
96 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace CustomComponents
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{
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public partial class ListBoxObjects : UserControl
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{
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private string LayoutString;
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private string StartS;
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private string EndS;
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private int SelectedStr;
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public ListBoxObjects()
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{
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InitializeComponent();
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}
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public int SelectedIndex {
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get {
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if (listBox.SelectedIndex == -1)
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{
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return -1;
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}
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return listBox.SelectedIndex;
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}
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set
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{
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if(listBox.Items.Count != 0)
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{
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listBox.SelectedIndex = value;
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}
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}
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}
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public void SetLayout(string layoutString, string startS, string endS)
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{
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if (layoutString == null || startS == null || endS == null) return;
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LayoutString = layoutString;
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StartS = startS;
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EndS = endS;
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}
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public void AddItemInList<T>(T Object)//3 zadanie
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{
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if (Object == null)
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{
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throw new ArgumentNullException();
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}
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if (!LayoutString.Contains(StartS) && !LayoutString.Contains(EndS))
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{
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return;
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}
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string str = LayoutString;
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foreach (var prop in Object.GetType().GetProperties())
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{
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string str1 = $"{StartS}" + prop.Name + $"{EndS}";
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str = str.Replace(str1, $"{StartS}" + prop.GetValue(Object).ToString() + $"{EndS}");
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}
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listBox.Items.Add(str);
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}
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public T GetItemFromList<T>() where T : class, new()
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{
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string SelectedStr = "";
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if (listBox.SelectedIndex != -1)
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{
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SelectedStr = listBox.SelectedItem.ToString();
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}
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T currentObject = new T();
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foreach (var prop in typeof(T).GetProperties())
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{
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if (!prop.CanWrite)
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{
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continue;
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}
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int startS = SelectedStr.IndexOf(StartS);
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int endS = SelectedStr.IndexOf(EndS);
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if (startS == -1 || endS == -1)
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{
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break;
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}
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string propValue = SelectedStr.Substring(startS + 1, endS - startS - 1);
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SelectedStr = SelectedStr.Substring(endS + 1);
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prop.SetValue(currentObject, Convert.ChangeType(propValue, prop.PropertyType));
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}
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return currentObject;
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}
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}
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}
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