c# - How can i click on a button in web page using webbrowser? -


the last div variable elementid working: "ctl00_rightmaincontent_submitaddress_p_submitbuttom"

the problem items1 variable part. want click button can see in screenshot it's marked. class name "addimg" , onclick openuploaddiv(0) not in div variable in bottom onclick openuploaddiv(0) can't find it's id. , tried add classname "addimg" in foreach didn't find it.

what want click automatic on addimg button.

void webbrowser4_documentcompleted(object sender, webbrowserdocumentcompletedeventargs e)         {              if (e.url.absoluteuri != webbrowser4.url.absoluteuri)             {                 return;             }              htmlelementcollection items = webbrowser4.document.getelementsbytagname("div");             foreach (htmlelement item in items)             {                 if (item.getattribute("classname") == "elements")                 {                     webbrowser4.document.getelementbyid("ctl00_rightmaincontent_txt_subject").innertext = "db החוקר מ סי.אס.איי";                 }             }               htmlelementcollection items1 = webbrowser4.document.getelementsbytagname("div");             foreach (htmlelement item in items1)             {                 if (item.getattribute("classname") == "elements")                 {                     // openuploaddiv(0);                     var div1 = webbrowser4.document.getelementbyid("file-input");                     if (div1 != null)                     {                         var button = div1.all[0];                         if (button != null)                             button.invokemember("click");                         else                             messagebox.show("button not found.");                     }                     else                     {                      }                 }             }              var div = webbrowser4.document.getelementbyid("ctl00_rightmaincontent_submitaddress_p_submitbuttom");             if (div != null)             {                 var button = div.all[0];                 if (button != null)                     button.invokemember("click");                 else                     messagebox.show("button not found.");             }             else             {                 messagebox.show("div not found.");             }         }

and screenshot when did inspect element

screenshot


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