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jquery script interferes with asp.net control's event

Posted on 2010-08-26
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Last Modified: 2012-05-10
I have implemented an asp.net 2.0 page with jquery tabs, several gridviews and a client script that shows/hides divs.
But the problem is that, when using ClientScript.RegisterStartupScript method, the GridView selectedindexchanged event doesn't fire anymore...
please help, code attached
aspx page: 
<script src="../Scripts/jquery-142min.js" type="text/javascript"></script>
    <script src="../Scripts/jquery-ui-182custommin.js" type="text/javascript"></script>
    <script src="../Scripts/JScript.js" type="text/javascript"></script>
<script type="text/javascript">
        $(document).ready(function() {
            $("#tabs").tabs();
        });
    </script>
asp:GridView ID="GridViewMyCases" runat="server" 
                    onselectedindexchanged="GridViewMyCases_SelectedIndexChanged" 
                    AllowPaging="False" OnRowDataBound="GridViewMyCases_RowDataBound"
                    AutoGenerateColumns="False" >

aspx.cs page:
protected void Page_Load(object sender, EventArgs e)
{
ClientScript.RegisterStartupScript(this.GetType(), "hidediv", "<script type=\"text/javascript\">$('#divCaseDetails').hide();</script>");
....
}

protected void GridViewMyCases_SelectedIndexChanged(object sender, EventArgs e)
    {
        //display my case details when selected
        Session["CurrentCase"] = GridViewMyCases.Rows[GridViewMyCases.SelectedIndex].Cells[1].Text;
        GenerateCaseDetails(GridViewMyCases, GridViewMyCases.SelectedIndex, "Id Caz");
        ClientScript.RegisterStartupScript(this.GetType(), "showdiv", "<script type=\"text/javascript\">$('#divCaseDetails').show();</script>");
    }

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aspx page: 
<script src="../Scripts/jquery-142min.js" type="text/javascript"></script>
    <script src="../Scripts/jquery-ui-182custommin.js" type="text/javascript"></script>
    <script src="../Scripts/JScript.js" type="text/javascript"></script>
<script type="text/javascript">
        $(document).ready(function() {
            $("#tabs").tabs();
        });
    </script>
asp:GridView ID="GridViewMyCases" runat="server" 
                    onselectedindexchanged="GridViewMyCases_SelectedIndexChanged" 
                    AllowPaging="False" OnRowDataBound="GridViewMyCases_RowDataBound"
                    AutoGenerateColumns="False" >

aspx.cs page:
protected void Page_Load(object sender, EventArgs e)
{
ClientScript.RegisterStartupScript(this.GetType(), "hidediv", "<script type=\"text/javascript\">$('#divCaseDetails').hide();</script>");
....
}

protected void GridViewMyCases_SelectedIndexChanged(object sender, EventArgs e)
    {
        //display my case details when selected
        Session["CurrentCase"] = GridViewMyCases.Rows[GridViewMyCases.SelectedIndex].Cells[1].Text;
        GenerateCaseDetails(GridViewMyCases, GridViewMyCases.SelectedIndex, "Id Caz");
        ClientScript.RegisterStartupScript(this.GetType(), "showdiv", "<script type=\"text/javascript\">$('#divCaseDetails').show();</script>");
    }

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0
Comment
Question by:danielivanov2
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8 Comments
 
LVL 14

Expert Comment

by:CtrlAltDl
ID: 33537083
Do you get a JavaScript error?

Since Asp.Net renames your controls to something like GridView_MyControl you need to use wild cards with your Jquery id/names.

$('[id$=divCaseDetails]').show();

This essentially says any id that ends in divCaseDetails.
0
 

Author Comment

by:danielivanov2
ID: 33540496
I receive no error, the gridview select hyperlink simply doesn't work
Not solved even with wildcards, as proposed above (and it's not clear for me why asp.net renames controls..)
0
 
LVL 14

Assisted Solution

by:CtrlAltDl
CtrlAltDl earned 250 total points
ID: 33562430
Since SelectedIndexChanged causes a post-back maybe your "showdiv" javascript is happening before the div is rendered.

You could tell jquery to wait until the page is ready:

ClientScript.RegisterStartupScript(this.GetType(), "showdiv", "<script type=\"text/javascript\">$(document).ready(function() {$('[id$=divCaseDetails]').show();});</script>");
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LVL 14

Expert Comment

by:CtrlAltDl
ID: 33562539
Oh you should also not hide on every Page_Load.

if (!IsPostBack)
{
     ClientScript.RegisterStartupScript(this.GetType(), "hidediv", "<script type=\"text/javascript\">$(document).ready(function() {$('[id$=divCaseDetails]').hide();});</script>");
}
0
 

Author Comment

by:danielivanov2
ID: 33564712
Didn't work.. and i need this div to be hidden and/or be shown (depending on action) for each page posback
as long as I comment out the script line, everything is ok (except show/hide div, of course)
0
 
LVL 14

Expert Comment

by:CtrlAltDl
ID: 33568509
Have you tried debugging and putting a breakpoint in SelectedIndexChanged to see if it is even triggered?
0
 

Author Comment

by:danielivanov2
ID: 33583685
the funny thing is that I have redesigned my page that I have moved the entire div that to be shown/hidden into a new aspx page, and now it is working (hiding the div in Page_Load method and firing selectedindexchanged method). But still not working when trying to show the div when selecting the gridview row..

protected void Page_Load(object sender, EventArgs e)
ClientScript.RegisterStartupScript(this.GetType(), "hidediv", "<script type=\"text/javascript\">$(document).ready(function() {$('[id$=divCaseDetails]').hide();});</script>");

protected void GridViewMyCases_SelectedIndexChanged(object sender, EventArgs e)
ClientScript.RegisterStartupScript(this.GetType(), "showdiv", "<script type=\"text/javascript\">$('[id$=divCaseDetails]').show();</script>");
0
 
LVL 14

Accepted Solution

by:
CtrlAltDl earned 250 total points
ID: 33590144
You have to wait til the document is ready for "show()" also:

ClientScript.RegisterStartupScript(this.GetType(), "showdiv", "<script type=\"text/javascript\">$(document).ready(function() {$('[id$=divCaseDetails]').show();});</script>");
0

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