c# - 更新控制线程安全

Question

如何将文本值或数值修改为文本框控件或 numbericUpDown 控件，或将项目和/或子项目添加到列表视图控件，或从线程内更新进度条，而无需创建多个定义，例如新功能和新代表？

Answer 1

我为我创建的应用程序所需的一组控件创建了一组线程安全的扩展函数，该应用程序需要对表单进行大量线程更新。该类将方法直接添加到控件中，因此使访问控件线程安全需要非常少的代码更改。只需将此类添加到您的项目中。

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;

namespace System.Windows.Forms
{
  public static class TSFormExtenders
  {
    #region Control
    public static void SetEnabledTS(this Control x, bool s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetEnabledTS(s);
        }));
      }
      else
      {
        x.Enabled = s;
      }
    }

    public static bool GetEnabledTS(this Control x, bool def = false)
    {
      if (x.InvokeRequired)
      {
        bool m_ret = def;
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetEnabledTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Enabled;
      }
    }

    public static void SetTextTS(this Control x, String s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetTextTS(s);
        }));
      }
      else
      {
        x.Text = s;
      }
    }

    public static String GetTextTS(this Control x, String def = "")
    {
      if (x.InvokeRequired)
      {
        String m_ret = def;
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetTextTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Text;
      }
    }

    public static void SetVisibleTS(this Control x, bool s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetVisibleTS(s);
        }));
      }
      else
      {
        x.Visible = s;
      }
    }

    public static bool GetVisibleTS(this Control x, bool def = true)
    {
      if (x.InvokeRequired)
      {
        bool m_ret = def;
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetVisibleTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Visible;
      }
    }

    public static void SetSizeTS(this Control x, Size s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetSizeTS(s);
        }));
      }
      else
      {
        x.Size = s;
      }
    }

    public static Size GetSizeTS(this Control x)
    {
      if (x.InvokeRequired)
      {
        Size m_ret = new Size();
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetSizeTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Size;
      }
    }
    #endregion

    #region CheckBox
    public static void SetCheckedTS(this CheckBox x, bool s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetCheckedTS(s);
        }));
      }
      else
      {
        x.Checked = s;
      }
    }

    public static bool GetCheckedTS(this CheckBox x)
    {
      if (x.InvokeRequired)
      {
        bool m_ret = false;
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetCheckedTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Checked;
      }
    }
    #endregion

    #region NumericUpDown
    public static void SetValueTS(this NumericUpDown x, Decimal s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetValueTS(s);
        }));
      }
      else
      {
        x.Value = s;
      }
    }

    public static Decimal GetValueTS(this NumericUpDown x)
    {
      if (x.InvokeRequired)
      {
        Decimal m_ret = 0;
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetValueTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Value;
      }
    }

    public static void SetMinTS(this NumericUpDown x, Decimal s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetMinTS(s);
        }));
      }
      else
      {
        x.Minimum = s;
      }
    }

    public static void SetMaxTS(this NumericUpDown x, Decimal s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetMaxTS(s);
        }));
      }
      else
      {
        x.Maximum = s;
      }
    }
    #endregion

    #region ProgressBar
    public static void SetValueTS(this ProgressBar x, Int32 s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetValueTS(s);
        }));
      }
      else
      {
        x.Value = s;
      }
    }

    public static Int32 GetValueTS(this ProgressBar x)
    {
      if (x.InvokeRequired)
      {
        Int32 m_ret = 0;
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          m_ret = x.GetValueTS();
        }));
        return m_ret;
      }
      else
      {
        return x.Value;
      }
    }

    public static void SetMinTS(this ProgressBar x, Int32 s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetMinTS(s);
        }));
      }
      else
      {
        x.Minimum = s;
      }
    }

    public static void SetMaxTS(this ProgressBar x, Int32 s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.SetMaxTS(s);
        }));
      }
      else
      {
        x.Maximum = s;
      }
    }
    #endregion

    #region ListView
    public static void AddItemTS(this ListView x, ListViewItem s)
    {
      if (x.InvokeRequired)
      {
        x.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.AddItemTS(s);
        }));
      }
      else
      {
        x.Items.Add(s);
      }
    }

    public static void AddItemTS(this ListViewItem x, System.Windows.Forms.ListViewItem.ListViewSubItem s)
    {
      if (x.ListView.InvokeRequired)
      {
        x.ListView.Invoke(new EventHandler(delegate(object o, EventArgs a)
        {
          x.AddItemTS(s);
        }));
      }
      else
      {
        x.SubItems.Add(s);
      }
    }
    #endregion
  }
}