How to set 'mouseover' event for per gridview row?

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Hi. I'm using ASP.NET (C#). I have designed a gridview and loaded data from database (SQL Server). That's ok.

Here is advanced requirement:
-> The database contains a field that it cannot be showed while debugging. Because I had wrote:

ASP.NET

<asp:BoundField DataField="course_group" HeaderText="Course group" SortExpression="course_group" HeaderStyle-CssClass="hidden" ItemStyle-CssClass="hidden" />

In css:

CSS

.hidden
{
display: none;
}

-> Now, I wanna get the value of course_group and set it into gridview row as a "Tooltip". Like this:

HTML

<a href="http://www.w3schools.com" title="I'm a tooltip">Visit W3Schools.com!</a>

I know the way to write a link tooltip, but not for gridview row tooltip.

I think it's difficult, because you might want to many different tooltip text for all gridview rows

Is there anyway to do that?
Can you give me any C# code behind solution (mouseover event) or CSS/Javascript code solution (hover event)?

Posted 28-Mar-15 18:19pm

user8x86

Updated 28-Mar-15 18:21pm

v2

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2015-03-28T19:55:00

I don't think you need a extra BoundField for the same. You can attach the tooltip to the row inside the RowDataBound Event. Something like this...

C#

protected void gvTestEscapePress_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        // Here get the data of column course_group and assign it to the tooltip below.
        string course_group = "demo text";
        e.Row.ToolTip = course_group;
    }
}

If this does not work, you can try adding mouseover event like...

C#

e.Row.Attributes.Add("onmouseover",  e.Row.ToolTip = "demo text");