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Get Gridview Cell Value using Javascript

Posted on 2013-01-07
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1,565 Views
Last Modified: 2013-01-08
I have a Gridview, where first column is a Link Button (text:view) and on click of the row, I need to get the cell value of next column.If I use below code, I get the row value but it fires on every cell is clicked .
 $(document).ready(function () {
            $("#<%=gvResults.ClientID%> tr:has(td)").click(function (e) {
                var selectedRow = $(this);
                var FirstRow = (selectedRow.children(0)[2].innerText);

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I need a simple Javascript function, so I get the cell value(s), on when the very first column(link button) is being clicked.
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Question by:ASPDEV
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6 Comments
 
LVL 19

Expert Comment

by:Albert Van Halen
ID: 38752794
According to your selector it will fire on every row having cells.
If you want the event being fired only when the link is being click (I'm not sure what the element name is for a Link Button; i'm only guessing that it's an A-tag), your selector would be this :
 $("#<%=gvResults.ClientID%> a")

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In order to get the next cell of the cell in which your link is use the following code:
var theCell = $(this).parents("td:first").next("td");

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The text of the cell can be retreived by using the text method :
var theText = theCell.text();

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Author Comment

by:ASPDEV
ID: 38752915
AlbervanHalen,

Tell me whether I can do this:

 <Columns>
                                            <asp:TemplateField>
                                                <HeaderTemplate>
                                                    View</HeaderTemplate>
                                                <HeaderStyle HorizontalAlign="Center" Width="75px" />
                                                <ItemTemplate>
                                                    <asp:LinkButton ID="lnkView" runat="server" Text="View" Font-Underline="false"
                                                        OnClientClick="return view();" ForeColor="Blue" />
                                                </ItemTemplate>
                                            </asp:TemplateField>
 <asp:TemplateField Visible="false">
                                                <HeaderTemplate>
                                                    ID</HeaderTemplate>
                                                <HeaderStyle HorizontalAlign="Center" Width="1px" />
                                                <ItemTemplate>
                                                    <asp:Literal runat="server" ID="ltrlID" Text='<%# Eval("ID") %>' />
                                                </ItemTemplate>
                                            </asp:TemplateField>

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Can I pass the ltrlID client id value for the selected row  OnClientClick="return view();" like this view(document.getElementById("<%=ltrlID.ClientID %>"). Is it possible??
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LVL 19

Accepted Solution

by:
Albert Van Halen earned 500 total points
ID: 38752985
Well, an asp:literal is just plain text client side, so it's not an element. In order to use an element you have to use a span or div.
But why don't you use the value directly in the itemtemplate where the linkbutton is...
<asp:TemplateField>
    <HeaderTemplate>View</HeaderTemplate>
    <HeaderStyle HorizontalAlign="Center" Width="75px" />
    <ItemTemplate>
        <asp:LinkButton ID="lnkView" runat="server" Text="View" Font-Underline="false" OnClientClick="return view('<%# Eval("ID") %>');" ForeColor="Blue" />
     </ItemTemplate>
</asp:TemplateField>

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Author Comment

by:ASPDEV
ID: 38755054
I think below code will work:
OnClientClick="return view('<%# Eval("ID") %>');"

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But I get error , server tag not well formed.How can pass the EVAL to javascript function.
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LVL 19

Expert Comment

by:Albert Van Halen
ID: 38755164
Tags with mixed single and double quotes...
You can use an html anchor as an alternative:
<a id='<%# Eval("ID") %>' onclick="return view(this.id);">View</a>

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Author Closing Comment

by:ASPDEV
ID: 38755298
Thanks, it worked.
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