How do I open new url+parameter on click event

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Hello everyone,
I'm doing a ASP.net webapp with a gridview.
On selectedindexchanged event I want to open a new URL with the below code and pass my selected value to the back of the URL. But it dosen't Work :-(

It says that my Gridview is not defined?

How do I do that?

What I have tried:

//This code Works - opening site without any additional parameters
Response.Write("<script>window.open('http://www.mywebsite.com/products/','_blank');</script>");

//This code does not Work - opening site + selected value
Response.Write("<script>window.open('http://www.mywebsite.com/products/= ' + GridView1.SelectedRow.Cells[2].Text);</script>");

Posted 30-May-16 20:41pm

Kristian_dk

Updated 7-Jun-16 1:49am

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Comments

Prateek Dalbehera 2-Jun-16 8:00am

In the url, after /products, you should use query string, so the correct format may be like /products?paramName=paramValue

Kristian_dk 7-Jun-16 7:45am

Thanks Prateek - you led me in the right direction :-) now it works

Prateek Dalbehera 8-Jun-16 0:58am

Most welcome...

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Kristian_dk · Accepted Answer · 2016-06-07T01:49:00

Solution 1

Response.Redirect("~/MyNextPage.aspx?Parameter1=" + Dropdown1.SelectedItem.Value + "&Parameter2=" + Dropdown2.SelectedItem.Value + "&Parameter3=" + Dropdown3.SelectedItem.Value );
}

Posted 7-Jun-16 1:49am

Kristian_dk

Comments

Richard Deeming 7-Jun-16 10:03am

You should encode the values before appending them to the URL:

Response.Redirect(string.Format("~/MyNextPage.aspx?Parameter1={0}&Parameter2={1}&Parameter3={2}",
   HttpUtility.UrlEncode(Dropdown1.SelectedValue),
   HttpUtility.UrlEncode(Dropdown2.SelectedValue),
   HttpUtility.UrlEncode(Dropdown3.SelectedValue));

Prateek Dalbehera 8-Jun-16 0:58am

Great point Richard... Always encoding is preferred because sometimes special characters would create create issues while passing from browser to server...e.g. while passing backslash(/) may create issues..

Kristian_dk 8-Jun-16 1:02am

Thanks for tipping in Richard. I was not aware of Encoding. Good learning for me.