How can I display a pop-up when hovering over a Gridview row?

[JTRizos]

Sorry, I hope this link works. Thanx A Simple DataGrid Row Tooltip For Beginners.[^]

[JTRizos]

Thanx to the feedback I've recieved from this forum, I think I am almost there. Viewing the source I can see that the onmouseover and onmouseout controls have been added to each row in the Gridview as intended. However, I get a "Microsoft JScript runtime error: Object expected" error. I cannot figure out why. The code is as follows: .aspx code

<script type="javascript">
function ShowTooltip(LName,FName,JUDesc,JTDesc)
{
document.getElementById("td0").innerText=LName;
document.getElementById("td1").innerText=FName;
document.getElementById("td2").innerText=JUDesc;
document.getElementById("td3").innerText=JTDesc;
x=event.clientX + document.body.scrollLeft;
y=event.clientY + document.body.scrollTop + 10;
Popup.style.display="block";
Popup.style.left=x;
Popup.style.top=y;
}

    function HideToolTip()
    {
        Popup.style.display="none";
    }

</script>

<div id="Popup" class ="transparent">
    <div style="BACKGROUND-COLOR:#003366"><center><b>Employee Info</b></center></div>
    <div>
        <table width="100%" border="0" cellpadding="0" cellspacing="0">
            <tr>
                <td id="td0" align="left"></td>
            </tr>
            <tr>
                <td id="td1" align="left"></td>
            </tr>
            <tr>
                <td id="td2" align="left"></td>
            </tr>
            <tr>
                <td id="td3" align="left"></td>
            </tr>
         </table>
    </div>
</div>

.aspx.cs code

private void InitializeComponent()
{
this.gvRoles.RowDataBound += new GridViewRowEventHandler(this.gvRoles_RowDataBound);
}

public void gvRoles_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.DataItem != null)
{
e.Row.Attributes.Add("onmouseover", "ShowTooltip('" +
DataBinder.Eval(e.Row.DataItem, "EmployeeNameLast").ToString() + "','" +
DataBinder.Eval(e.Row.DataItem, "EmployeeNameFirst").ToString() + "','" +
DataBinder.Eval(e.Row.DataItem, "JobUnitDescription").ToString()

[Parwej Ahamad]

It's better to debug the javascript put the alert inside the method, because i am suspecting for following line. so see the value of : alert(event.clientX); alert(document.body.scrollLeft); alert(event.clientY); alert(document.body.scrollTop); I believe may error comes from this line because it's varying browser to browser. So test it and let me here. Thanks

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

Thanx Parwej, I tried this and the alerts do not pop up. Something does flash on the screen so I am guessing it might be the alerts. The JScript message pops up when I hover over a row and in the source the correct onmouseover and onmouseout are highlighted for the correct row. So I think I am close. I should explain I am testing this using the Debug in Visual Studio 2008. I'll keep trying to get this to work. Thanx for your prompt reply.

[Parwej Ahamad]

Hi, alert should popup so write those alerts before the all statement. I believe issue is with those statement. For testing purpose show the tool tip without setting the x, and y. See what's happened. Please test it on different browser. If you can share your screen on TeamViewer then I can help you and see what's going on.

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

I took out everything from the JScript except the document.getElementByID statements and still get the JScript runtime error when I hover over a row. The error occurs on ShowToolTip and HideToolTip. I did notice that I get the "Nothing to report " message from the .aspx.cs code if statement. Not sure why. I am using IE 8 which is standard for the department and am not sure how to test this without VS 2008 or without placing it in the live environment. I've never used TeamViewer and I doubt it would work due to the firewalls used here. The app I am working on will be internal to our department. Sorry I cannot be more helpful.

[Parwej Ahamad]

Ok, Do step by step : First comment your existing code then test with simple alert and let me know the status that you are getting alert or not:

public void gvRoles_RowDataBound(object sender, GridViewRowEventArgs e)
{
if ( e.Row.RowType == DataControlRowType.DataRow )
{
e.Row.Attributes.Add("onmouseover", "alert('Display some message');");
}

 /\*   if (e.Row.DataItem != null)
    {
        e.Row.Attributes.Add("onmouseover", "ShowTooltip('" +
            DataBinder.Eval(e.Row.DataItem, "EmployeeNameLast").ToString() + "','" +
            DataBinder.Eval(e.Row.DataItem, "EmployeeNameFirst").ToString() + "','" +
            DataBinder.Eval(e.Row.DataItem, "JobUnitDescription").ToString() + "','" +
            DataBinder.Eval(e.Row.DataItem, "JobTitleDescription").ToString() + "');");
        e.Row.Attributes.Add("onmouseout", "HideToolTip();");
    }
    else
    {
        lblError.Text = "Nothing to report ";
    } \*/

}

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

It works. I get the alert message each time I hover over a row.

[Parwej Ahamad]

Good Start :) Now change your code and test with your method:

//Javascript Method
function ShowTooltip(message)
{
alert(message);
/* document.getElementById("td0").innerText=LName;
document.getElementById("td1").innerText=FName;
document.getElementById("td2").innerText=JUDesc;
document.getElementById("td3").innerText=JTDesc;
x=event.clientX + document.body.scrollLeft;
y=event.clientY + document.body.scrollTop + 10;
Popup.style.display="block";
Popup.style.left=x;
Popup.style.top=y;*/
}

//Row bound event
e.Row.Attributes.Add("onmouseover", "ShowTooltip('Passed Test Message');");

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

Tried this and got the "JScript runtime error:Object expected" message on each row hovered.

[Parwej Ahamad]

Please go through with this URL: http://social.msdn.microsoft.com/Forums/eu/netfxjscript/thread/eede0ba6-1e1d-4248-98bb-6383839dfac7[^] Do you have any massenger id so we can chat because here it's very hard to communicate this way.

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

Agreed but I don't have a messenger here. I changed the and the ShowTooltip(message) worked. No runtime error. However, when I put the code back to the way it was I don't get the runtime error but I do get a webpage message with a number in it. When I press the OK button, it goes through a series of three messages having different numbers as I press OK after each one. Hovering over a row starts the series of messages over again. Any idea? I know this is abstract and you probably have better things to do but you have been a big help.</x-turndown>

[Parwej Ahamad]

Your last message is broken so send me direct email with your last message on my person id: ahamad.parwej@gmail.com

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

I'll try this again I changed the "" to "<script type="text/javascript">" and I do not get the runtime error anymore for the ShowTooltip(message). So, I changed it back to the original code and no longer get the runtime error. However, I get a webpage message window with a number in it. Pressing OK brings up another webpage message with another number in it. This happens about 3 times. Hovering over a row restarts this series of messages with a different number in each. Any ideas? I know this is abstract but you have been a big help on this. I do not have a messenger here and I know this is cumbersome.</x-turndown>

[Parwej Ahamad]

Can you send me print screen of that error message so I can take a look?

Parwej Ahamad ahamad.parwej@gmail.com

[JTRizos]

With help from this forum (Thanx Parwej Ahamad) I got what I needed. I am including the code here in case it can help others. The application has 119 columns and this Popup displays the employee name, job unit and job description by hovering over any row as the user scrolls horizontally. This was based on A Simple DataGrid Row Tooltip For Beginners.[^] .aspx

<!-- Script and Div to set up the Popup with Employee Info -->
<script type="text/javascript">
function ShowTooltip(LName,FName,JUDesc,JTDesc)
{
document.getElementById("td0").innerText=LName;
document.getElementById("td1").innerText=FName;
document.getElementById("td2").innerText=JUDesc;
document.getElementById("td3").innerText=JTDesc;
x=event.clientX + document.documentElement.scrollLeft;
y=event.clientY + document.documentElement.scrollTop + 5;
Popup.style.display="block";
Popup.style.left=x;
Popup.style.top=y;
}

    function HideToolTip()
    {
        Popup.style.display="none";
    }

</script>

<div id="Popup" class ="transparent">
<div style="BACKGROUND-COLOR:#003366"><center><b>Employee Info</b></center></div>
<div>
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td id="td0" align="left"></td>
</tr>
<tr>
<td id="td1" align="left"></td>
</tr>
<tr>
<td id="td2" align="left"></td>
</tr>
<tr>
<td id="td3" align="left"></td>
</tr>
</table>
</div>
</div>

.aspx.cs

/* Code for Popup with Employee Info */
public void gvRoles_RowDataBound(object sender, GridViewRowEve

[Parwej Ahamad]

Thanks, You will be always resolved your issue with this forum.

Parwej Ahamad ahamad.parwej@gmail.com