43 lines
1.1 KiB
C#
43 lines
1.1 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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using Autodesk.Revit.DB;
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using Autodesk.Revit.UI;
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using Autodesk.Windows;
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namespace DotNet.RevitUI.MVVM
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{
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/// <summary>
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/// 委托式revit命令
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/// </summary>
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public class RevitRelayCommand : RevitCommand
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{
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private readonly Func<ExternalCommandData, Result> m_Execute;
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private readonly Func<bool> m_CanExecute;
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public RevitRelayCommand(Func<ExternalCommandData, Result> execute, Func<bool> canExecute)
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{
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m_Execute = execute ?? throw new ArgumentNullException("execute");
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m_CanExecute = canExecute;
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}
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public RevitRelayCommand(Func<ExternalCommandData, Result> execute)
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: this(execute, null)
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{
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}
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protected override bool CanExecute(Autodesk.Windows.RibbonItem parameter)
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{
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return m_CanExecute == null || m_CanExecute();
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}
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protected override Result Invoke(ExternalCommandData commandData, ref string message, ElementSet elements)
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{
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return m_Execute(commandData);
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}
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}
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}
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