Hi Anitha,
You can pass value to the url input in the web page from parameters or fields used in the dashboard.
1. Press Ctrl + Shift+D then Actions box opens, Click on Add Action below. and select Go To Url.
2. A dialog box like this opens.
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3. Enter the link name, and the sheet that id used to pass a value to the url. Use select as the Run action to pass value from sheet directly to web page.
Then write the url link as required, could be a html form or a simple search query.
For example: https://www.google.com/search?q= then click on the arrow beside the url box to see all the value that can be passed to the url.
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4. Select the url target, whether you want to open url in a new page, or in the web project object.
Then click on ok.
5. Now click on the field or value/ sheet to pass the value directly to web page input box.
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Hope this helps you.