79 lines
3.6 KiB
C#
79 lines
3.6 KiB
C#
using System;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.Windows.Forms;
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namespace CC_Functions.Misc
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{
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public delegate void SetPropertyDelegate<TCtl, TProp>(TCtl control, Expression<Func<TCtl, TProp>> propexpr, TProp value) where TCtl : Control;
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public delegate TProp GetPropertyDelegate<TCtl, TProp>(TCtl control, Expression<Func<TProp>> propexpr) where TCtl : Control;
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public delegate void InvokeActionDelegate<TCtl>(TCtl control, Delegate dlg, params object[] args) where TCtl : Control;
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public delegate TResult InvokeFuncDelegate<TCtl, TResult>(TCtl control, Delegate dlg, params object[] args) where TCtl : Control;
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public static class Forms
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{
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public static void SetProperty<TCtl, TProp>(this TCtl control, Expression<Func<TCtl, TProp>> propexpr, TProp value) where TCtl : Control
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{
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if (control == null)
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throw new ArgumentNullException(nameof(control));
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if (propexpr == null)
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throw new ArgumentNullException(nameof(propexpr));
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if (control.InvokeRequired)
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{
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control.Invoke(new SetPropertyDelegate<TCtl, TProp>(SetProperty), control, propexpr, value);
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return;
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}
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var propexprm = propexpr.Body as MemberExpression;
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if (propexprm == null)
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throw new ArgumentException("Invalid member expression.", nameof(propexpr));
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var prop = propexprm.Member as PropertyInfo;
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if (prop == null)
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throw new ArgumentException("Invalid property supplied.", nameof(propexpr));
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prop.SetValue(control, value);
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}
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public static TProp GetProperty<TCtl, TProp>(this TCtl control, Expression<Func<TProp>> propexpr) where TCtl : Control
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{
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if (control == null)
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throw new ArgumentNullException(nameof(control));
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if (propexpr == null)
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throw new ArgumentNullException(nameof(propexpr));
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if (control.InvokeRequired)
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return (TProp)control.Invoke(new GetPropertyDelegate<TCtl, TProp>(GetProperty), control, propexpr);
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var propexprm = propexpr.Body as MemberExpression;
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if (propexprm == null)
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throw new ArgumentException("Invalid member expression.", nameof(propexpr));
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var prop = propexprm.Member as PropertyInfo;
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if (prop == null)
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throw new ArgumentException("Invalid property supplied.", nameof(propexpr));
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return (TProp)prop.GetValue(control);
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}
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public static void InvokeAction<TCtl>(this TCtl control, Delegate dlg, params object[] args) where TCtl : Control
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{
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if (control == null)
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throw new ArgumentNullException(nameof(control));
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if (dlg == null)
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throw new ArgumentNullException(nameof(dlg));
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if (control.InvokeRequired)
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{
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control.Invoke(new InvokeActionDelegate<TCtl>(InvokeAction), control, dlg, args);
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return;
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}
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dlg.DynamicInvoke(args);
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}
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public static TResult InvokeFunc<TCtl, TResult>(this TCtl control, Delegate dlg, params object[] args) where TCtl : Control
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{
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if (control == null)
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throw new ArgumentNullException(nameof(control));
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if (dlg == null)
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throw new ArgumentNullException(nameof(dlg));
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return control.InvokeRequired ? (TResult)control.Invoke(new InvokeFuncDelegate<TCtl, TResult>(InvokeFunc<TCtl, TResult>), control, dlg, args) : (TResult)dlg.DynamicInvoke(args);
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}
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}
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} |