创造<input>使用 type=&quot;image&quot; 重定向到另一个带有参数的 aspx 页面

Question

Thanks to all of the help stackoverflow has been, I'm a new programmer and this site has been probably the best resource!

I'm using vb.net to dynamically make a datatable, which is bound to a gridview and populated into a placeholder on my aspx page. I would like each cell to have an image with an onclick method, which passes a session variable to the next aspx page. I've tried making an input statement, where my DataRows are set individually like this:

DataRow(0) = "<input type='image' src='img.jpg' runat='server' onclick='NavigateToPage(NextPage.aspx)'>"

In my Chrome debug it is telling me my function is not within the scope that I'm calling it, so I tried making a javascript function on my .aspx page like this:

<script type='text/javascript'>
function NavigateToPage(page) {
    window.location.href = (page);
}

But still no redirect! Thanks in advance for the replies during the holiday season.

Answer 1

Create a var for "page". Try putting it in the global scope. If you are worried about polluting the global, then namespace your function and put the var in your function. Also put your page string in quotes.

Answer 2

After some trial and error, I figured out how to set it up with a querystring:

DataRow(0) = "<A href='NextPage.aspx'/><IMG src='img.jpg' Border=0>"

And of course put arguments for the NextPage using an href like this:

href='Nextpage.aspx?value1='1'&value2='2'&value3='3'

i forgot to add initially that I have a small function at the end that decodes the text string into an html element after the table is bound to the gridview:

    For i As Integer = 0 To gv.Rows.Count - 1
        For ColNo As Integer = 3 To 6
            gv.Rows(i).Cells(ColNo).Text = Context.Server.HtmlDecode(gv.Rows(i).Cells(ColNo).Text)
        Next
    Next