PIbd-33_Sergunov_M.A._COP_4/Library/CustomComponents/ListBoxObjects.cs

99 lines
3.0 KiB
C#

using System.Text;
namespace CustomComponents
{
public partial class ListBoxObjects : UserControl
{
private string layoutString;
private string startSymbol;
private string endSymbol;
public ListBoxObjects()
{
InitializeComponent();
}
public void SetLayoutInfo(string layout, string startS, string endS)
{
if (layout == null || startS == null || endS == null)
{
return;
}
layoutString = layout;
startSymbol = startS;
endSymbol = endS;
}
public int SelectedIndex
{
get {
if (listBox.SelectedIndex == -1)
{
return -1;
}
return listBox.SelectedIndex;
}
set {
if (listBox.SelectedItems.Count != 0)
{
listBox.SelectedIndex = value;
}
}
}
public T GetObjectFromStr<T>() where T : class, new()
{
string selStr = "";
if (listBox.SelectedIndex != -1)
{
selStr = listBox.SelectedItem.ToString()!;
}
T curObject = new T();
foreach (var property in typeof(T).GetProperties())
{
if (!property.CanWrite)
{
continue;
}
int borderOne = selStr.IndexOf(startSymbol);
StringBuilder sb = new StringBuilder(selStr);
sb[borderOne] = 'z';
selStr = sb.ToString();
int borderTwo = selStr.IndexOf(endSymbol);
if (borderOne == -1 || borderTwo == -1) break;
string propertyValue = selStr.Substring(borderOne + 1, borderTwo - borderOne - 1);
selStr = selStr.Substring(borderTwo + 1);
property.SetValue(curObject, Convert.ChangeType(propertyValue,property.PropertyType));
}
return curObject;
}
public void AddInListBox<T>(T entity)
{
if (layoutString == null || startSymbol == null || endSymbol == null)
{
throw new Exception("Заполните макетную строку");
}
if (!layoutString.Contains(startSymbol) || !layoutString.Contains(endSymbol))
{
throw new Exception("Макетная строка не содержит нужные элементы");
}
string str = layoutString;
foreach (var prop in entity.GetType().GetProperties())
{
string str1 = $"{startSymbol}" + $"{prop.Name}" + $"{endSymbol}";
str = str.Replace(str1, $"{startSymbol}" + prop.GetValue(entity).ToString() + $"{endSymbol}");
}
listBox.Items.Add(str);
}
}
}