How to run a java script function on webbrowser

Question

1.00/5 (1 vote)

See more:

this source of the site:

function __submit(action)
{
	document.forms[0].comboChange.value=action;
        document.forms[0].submit();
}

one
two

three
four

I make a project and visit this webpage and set value of the combobox.after set value should run javascrript function __submit('1 or 2')but a can not execute this.
please help me to execute this.

What I have tried:

I want run a javascript function with input parameter.

Posted 10-Jul-17 1:11am

mosifallah

Updated 10-Jul-17 2:50am

Andy Lanng

v2

Add a Solution

Comments

F-ES Sitecore 10-Jul-17 7:16am

How do you "visit the webpage"?

Andy Lanng 10-Jul-17 8:38am

Can you add the source back in and make sure you "paste as source". Looks like the tags have been wiped out

mosifallah 10-Jul-17 10:55am

I cant edit source of the page;
I want make a robot to fill this page; I use webbrowser companent in visual# and load page.i want run that function in the my program;thanks

Richard Deeming 10-Jul-17 13:14pm

Andy wasn't referring to the source of the page. He was referring to your question, where the source code you pasted has been removed.

Click the green "Improve question" link, and add the missing source back in.

If you get the popup asking how you want to paste it, select "Code block". Otherwise, select the pasted code and click the "code" button in the editor toolbar.

If you don't get either option, then you'll need to manually HTML-encode the source, and wrap it in <pre>...</pre> tags.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sheila Pontes · Answer 1 · 2017-07-10T02:46:00

Hi,

As I do not know, how you visit the page.
I will propose 2 solution to this problem.

First Solution:

You use only html and javascript.
In the onload event of the body tag you call the function for set value in your combobox and after the function for process this value.

HTML

<!DOCTYPE html>
<html>
    <head>
        <title>Run JS</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script>
            function _submit()
            {
                var e = document.getElementById("ddlView");
                var id = e.options[e.selectedIndex].value;
                
                alert('Value selected is: ' + id); 
                
            }
            
            function visit()
            {
                document.getElementById("ddlView").value = '1'; 
            }
        </script>
    </head>
    <body onload="visit();_submit();">
        <div>
            <select id="ddlView">
                <option value="0" selected="selected">Select one item</option>
                <option value="1">Item 1</option>
                <option value="2">Item 2</option>
                <option value="3">Item 3</option>
                <option value="4">Item 4</option>
            </select>
            
        </div>
    </body>
</html>

Sheila Pontes · Answer 2 · 2017-07-10T02:50:00

Second Solution

You use html, javascript e C#.

In the html code, you will use the button to call the function to process the value.
This button will be hidden.

JavaScript

function _submit() 
{
    var e = document.getElementById("combobox");
    var id = e.options[e.selectedIndex].value;
    alert('Value selected is: ' + id);
}

<div>
        <asp:DropDownList ID="combobox" runat="server">
            <asp:ListItem Text="Item 1" Value="1"></asp:ListItem>
            <asp:ListItem Text="Item 2" Value="2"></asp:ListItem>
            <asp:ListItem Text="Item 3" Value="3"></asp:ListItem>
            <asp:ListItem Text="Item 4" Value="4"></asp:ListItem>
        </asp:DropDownList>
        <asp:Button ID="btnOCRunScript" style="visibility:hidden;"  runat="server" OnClientClick="_submit();" Text="RodarScript" />
    </div>

In the code-behind, in the page load event, you set the value, and then register the script to dynamically click the button on the html page.

C#

protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                //set the item 3. value 3 
                this.combobox.SelectedIndex = 2;

                //script for click in button dynamically 
                string script = "document.getElementById(\"btnOCRunScript\").click();";

                //register script in html
                // Check to see if the startup script is already registered.
                if (!this.Page.ClientScript.IsStartupScriptRegistered(this.GetType(), "runbutton"))
                {
                    this.Page.ClientScript.RegisterStartupScript(this.GetType(), "runbutton",script, true);
                }
            }
        }

How to run a java script function on webbrowser

2 solutions

Solution 2

Solution 3

Add your solution here

Preview 0