C#多线程异步执行和跨线程访问控件Helper

第C#多线程异步执行和跨线程访问控件Helper////summary

///paramname="func"方法，如果方法中调用了控件，请使用ThreadInvokerControl(()={您的操作})进行包括/param

///paramname="callback"执行完成回调,参数为object，如果错误返回的是Exception，否则为null，如果为空则默认调用基类回调方法/param

///paramname="enableControl"调用线程时禁用的控件/param

publicstaticvoidTaskRun(

Formfrm,

FuncTaskfunc,

Actionobjectcallback=null,

Control[]enableControl=null)

if(enableControl!=null)

SetControlEnableds(enableControl,false);

Task.Factory.StartNew(()=

Tasktask=func();

if(task.Exception!=nulltask.Exception.InnerException!=null)

throwtask.Exception.InnerException;

callback.Invoke(null);

catch(Exceptionex)

if(callback!=null)

callback(ex);

else

ThreadBaseCallBack(frm,ex);

finally

if(enableControl!=nullfrm!=null)

ThreadInvokerControl(frm,()={SetControlEnableds(enableControl,true);});

///summary

///功能描述:线程默认回调方法

////summary

publicstaticvoidThreadBaseCallBack(Formfrm,Exceptionex)

if(frm!=null)

ThreadInvokerControl(frm,()=

ExceptionlastEx=ex.GetOriginalException();

MessageBox.Show(lastEx.Message);

catch

///summary

///功能描述:委托调用，用于夸线程访问控件

////summary

///paramname="action"action/param

///paramname="f"所在窗体，默认使用当前窗体/param

publicstaticvoidThreadInvokerControl(Formfrm,Actionaction)

if(frm!=null)

if(frm.InvokeRequired)

frm.BeginInvoke(action);

else

action();

#endregion

#region提示层

[DllImport("user32.dll")]

privatestaticexternboolSetForegroundWindow(IntPtrhWnd);

privatestaticvoidShowProcessPanel(Controlparent,stringstrMessage)

if(parent.InvokeRequired)

parent.BeginInvoke(newMethodInvoker(delegate

ShowProcessPanel(parent,strMessage);

}));

else

parent.VisibleChanged-=newEventHandler(parent_VisibleChanged);

parent.VisibleChanged+=newEventHandler(parent_VisibleChanged);

parent.FindForm().FormClosing-=ControlHelper_FormClosing;

parent.FindForm().FormClosing+=ControlHelper_FormClosing;

Controlcontrol=null;

lock(parent)

control=HaveProcessPanelControl(parent);

if(control==null)

control=CreateProgressPanel();

parent.Controls.Add(control);

FWaitingfWaiting=control.TagasFWaiting;

fWaiting.Message=strMessage;

fWaiting.Show();

privatestaticvoidControlHelper_FormClosing(objectsender,FormClosingEventArgse)

Controlcontrol=senderasControl;

control.FindForm().FormClosing-=ControlHelper_FormClosing;

CloseWaiting(control);

privatestaticvoidparent_VisibleChanged(objectsender,EventArgse)

Controlcontrol=senderasControl;

control.VisibleChanged-=newEventHandler(parent_VisibleChanged);

if(!control.Visible)

CloseWaiting(control);

privatestaticvoidCloseWaiting(Controlcontrol)

Control[]array=control.Controls.Find("myProgressPanelext",false);

if(array.Length0)

ControlmyProgress=array[0];

if(myProgress.Tag!=nullmyProgress.TagisFWaiting)

FWaitingfWaiting=myProgressasFWaiting;

if(fWaiting!=null!fWaiting.IsDisposedfWaiting.Visible)

fWaiting.Hide();

privatestaticvoidCloseProcessPanel(Controlparent)

if(parent.InvokeRequired)

parent.BeginInvoke(newMethodInvoker(delegate

CloseProcessPanel(parent);

}));

elseif(parent!=null)

Controlcontrol=HaveProcessPanelControl(parent);

if(control!=null)

Formfrm=control.TagasForm;

if(frm!=null!frm.IsDisposedfrm.Visible)

if(frm.InvokeRequired)

frm.BeginInvoke(newMethodInvoker(delegate

frm.Hide();

}));

else

frm.Hide();

privatestaticControlHaveProcessPanelControl(Controlparent)

Control[]array=parent.Controls.Find("myProgressPanelext",false);

Controlresult;

if(array.Length0)

result=array[0];

else

result=null;

returnresult;

privatestaticControlCreateProgressPanel()

returnnewLabel

Name="myProgressPanelext",

Visible=false,

Tag=newFWaiting

TopMost=true,

#endregion

#region禁用控件时不改变空间颜色

[System.Runtime.InteropServices.DllImport("user32.dll")]

privatestaticexternintSetWindowLong(IntPtrhWnd,intnIndex,intwndproc);

[System.Runtime.InteropServices.DllImport("user32.dll")]

privatestaticexternintGetWindowLong(IntPtrhWnd,intnIndex);

privateconstintGWL_STYLE=-16;

privateconstintWS_DISABLED=0x8000000;

///summary

///功能描述:设置控件的Enable属性，控件不改颜色

////summary

///paramname="c"c/param

///paramname="enabled"enabled/param

privatestaticvoidSetControlEnabled(Controlc,boolenabled)

if(enabled)

SetWindowLong(c.Handle,GWL_STYLE,(~WS_DISABLED)GetWindowLong(c.Handle,GWL_STYLE));

else

SetWindowLong(c.Handle,GWL_STYLE,WS_DISABLED+GetWindowLong(c.Handle,GWL_STYLE));

///summary

///功能描述:设置多个控件的Enable属性，控件不改颜色

////summary

///paramname="cs"cs/param

///paramname="enabled"enabled/param

privatestaticvoidSetControlEnableds(Control[]cs,boolenabled)

foreach(varcincs)

SetControlEnabled(c,enabled);