问题
This is a quick and dirty app that only needs to work for a short period. I'm not a developer so please don't hammer me. The following code in asp works fine (secret info replaced with example.com and abc 123).
I know the below is very bad practice, but this is just for demonstration purpose:
<form method="post" action="https://example.com/asppage.aspx" id="frm_main">
<input type="hidden" name="STATE" id="STATE" value="ABC" />
<input type="hidden" name="VALIDATION" id="VALIDATION" value="123/>
<input type="submit" name="refresh_progress" value="Check Status" id="refresh_progress" /></form>
However, the same code in my c# post doesn't work:
string PostData = "STATE=ABC&VALIDATION=123";
webBrowser1.Navigate("https://example.com/asppage.aspx", "_blank", Encoding.Default.GetBytes(PostData), "Content-Type: application/x-www-form-urlencoded\n\r");
When the new browser window pops up, its the default asppage.aspx form with no data posted to it.
Any ideas what I'm doing wrong?
回答1:
You're giving the webBrowser the html of the form, the POST data is a serialised format of the names and values of the form fields which is what you need to put in your Navigate method.
The postdata needs to be in the format:
inputname1=value1&inputname2=value2&inputname3=value3
You will also need to uri encode the string and include Content-Type: application/x-www-form-urlencoded as the fourth parameter in the method call.
回答2:
Your POST format is completely wrong.
See the specification.
来源：https://stackoverflow.com/questions/4015000/c-sharp-post-to-browser-fails-any-ideas