In WPF, operate source code in webbrowser

Since the WPF webbrowser control is very different from the winform webbrowser control, it was tossed around for a night, and now some keyCodeSummarize.

The Microsoft. mshtml. dll address must be c: \ Program Files \ Microsoft. NET \ primary InterOP assemblies.

 

1. Obtain the element value based on the element ID.

For example, to obtain the value of the src attribute in this label:

Mshtml. ihtmldocument2 doc2 = (mshtml. ihtmldocument2) webbrowser1.document;
Mshtml. ihtmlelement IMG = (mshtml. ihtmlelement) doc2.all. Item ("regimg", 0 );

String imgurl = (string) IMG. getattribute ("src ");

 

2. Fill in the form and confirm

Mshtml. ihtmlelement loginname = (mshtml. ihtmlelement) doc2.all. Item ("loginname", 0 );
Mshtml. ihtmlelement loginpw = (mshtml. ihtmlelement) doc2.all. Item ("password", 0 );
Mshtml. ihtmlelement loginbt = (mshtml. ihtmlelement) doc2.all. Item ("formsubmit", 0 );
Mshtml. ihtmlelement loginyz = (mshtml. ihtmlelement) doc2.all. Item ("regcode", 0 );
Loginname. setattribute ("value", tbloginname. Text );
Loginpw. setattribute ("value", tbloginpassword. Password );
Loginyz. setattribute ("value", tbyz. Text );
Loginbt. Click ();

 

3. Get source code

Textbox1.text = doc2.body. innerhtml;

 

4. Execute JS

Mshtml. ihtmlwindow2 win = (mshtml. ihtmlwindow2) doc2.parentwindow;
Win.exe cscript ("changeregimg ()", "JavaScript"); // use JS

 

5. Disable Js. Currently, the only applicable method found in WPF is:

Public void hidescripterrors (webbrowser WB, bool hide)
{

Fieldinfo ficomwebbrowser = typeof (webbrowser). getfield ("_ axiwebbrowser2", bindingflags. instance | bindingflags. nonpublic );

If (ficomwebbrowser = NULL) return;

Object objcomwebbrowser = ficomwebbrowser. getvalue (WB );

If (objcomwebbrowser = NULL) return;

Objcomwebbrowser. GetType (). invokemember (

"Silent", bindingflags. setproperty, null, objcomwebbrowser, new object [] {hide });

}

Void webbrowser1_navigated (Object sender, navigationeventargs E)
{

Hidescripterrors (webbrowser1,

True );

}