Switch view when host xmlformview in aspx

When you place xmlformview on your own ASPX page, you may need to switch the view logic. For example, when a process is bound to a form library, the formserviceformtask page of quickflow switches the view based on the _ currentview field in taskfields of the task activity.

Xmlformview provides two methods:

Xmlviewer. xmlform. viewinfos. switchview ("approval ")

Xmlviewer. xmlform. viewinfos. Initial = xmlviewer. xmlform. viewinfos ["approval"]

But these two methods are either incorrect or useless.

Find the most reasonable way is to use JS switch, refer to the http://www.moss2007.be/blogs/vandest/archive/2008/10/10/forms-server-xmlformview-and-setting-the-initialview-on-load.aspx

However, this will cause secondary page refresh.

No way to use reflect for analysisCode, Find the method for setting the view with reflection:

1) For each point2007

Void switchview12 (string viewname) {If (string. isnullorempty (viewname) throw new argumentnullexception ("viewname"); // check view exist. object viewinfo = NULL; try {viewinfo = This. xmlviewer. xmlform. viewinfos [viewname];} catch {} If (viewinfo = NULL) {Throw new notsupportedexception ("view doesn't exist:" + viewname); return ;} // use reflection to control this. xmlviewer. xmlform. document. currentviewname system. reflection. propertyinfo pdocument = This. xmlviewer. xmlform. getType (). getproperty ("document", system. reflection. bindingflags. nonpublic | system. reflection. bindingflags. instance); If (pdocument = NULL) {Throw new nullreferenceexception ("can't get property xmlform. document "); return;} object objdoc = pdocument. getvalue (this. xmlviewer. xmlform, null); If (objdoc = NULL) {Throw new nullreferenceexception ("can't get value: xmlform. document "); return;} // objdoc. currentview = objdoc. solution. views [this. _ xmlformhost. viewinfos. default. name]; system. reflection. propertyinfo pcurrentview = objdoc. getType (). getproperty ("currentview"); // debug ("currentview:" + pcurrentview); system. reflection. propertyinfo psolution = objdoc. getType (). getproperty ("solution"); // debug ("psolution:" + psolution); object objsolution = psolution. getvalue (objdoc, null); // debug ("objsolution:" + objsolution); idictionary views = objsolution. getType (). getproperty ("views", system. reflection. bindingflags. nonpublic | system. reflection. bindingflags. instance ). getvalue (objsolution, null) as idictionary; // debug ("views:" + views); object v = views [viewname]; // debug ("V: "+ V); pcurrentview. setvalue (objdoc, V, null );}

This method is called in the oninitlized method.

2) For each point2010

The above method should also work on 2010, but 2010 provides a more convenient method: xmlformview. defaultview,

Bool switchview14 (string viewname)
{
VaR pdefaultview = xmlviewer. GetType (). getproperty ("defaultview"); // It can only be set before databind

// The defaultview attribute may be a public method, so reflection is unnecessary. However, the code is implemented in section 2007, so reflection must be used.
If (pdefaultview = NULL)
Return false;
Pdefaultview. setvalue (xmlviewer, viewname, null );
Return true;
}

This method is different: it cannot be called in the oninitlized method, and must be called before xmlformview databind.