Calling a Javascript function in the C# webBrowser control
I am using the webBrowser control in C# to load a webpage and need to call a JavaScript function that returns a string value. I got a solution to use the
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You can send arguments to the js function:
// don't forget this: [PermissionSet(SecurityAction.Demand, Name = "FullTrust")] [ComVisible(true)] public partial class Form1 : Form { public Form1() { InitializeComponent(); webBrowser1.DocumentText = @"<html><head> <script type='text/javascript'> function doIt(myArg, arg2, arg3) { alert('hello again ' + myArg); return 'yes '+arg2+' - you did it! thanks to ' +myArg+ ' & ' +arg3; } </script> </head><body>hello!</body></html>"; } private void button1_Click(object sender, EventArgs e) { // get the retrieved object from js into object y object y = webBrowser1.Document.InvokeScript("doIt", new string[] { "Snir", "Raki", "Gidon"}); } }讨论(0) -
Can you specify what failed?
My sample below consists of a form with a WebBrowser and a Button.
The object called y in the end has the sentence "i did it!". So with me it works.
public partial class Form1 : Form { public Form1() { InitializeComponent(); webBrowser1.DocumentText = @"<html><head> <script type='text/javascript'> function doIt() { alert('hello again'); return 'i did it!'; } </script> </head><body>hello!</body></html>"; } private void button1_Click(object sender, EventArgs e) { object y = webBrowser1.Document.InvokeScript("doIt"); } }讨论(0)
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