Make only certain rows in radgrid bold

[John]

Hi,  I have a dataset that has a column called bold that's a bit.   When it's true I want that row to be bold, otherwise not.  How can I do this in radgrid?  Thanks in advance

[Shinu]

Hi John,

Try the following code to achieve your scenario.
C#:

protected void RadGrid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
{
 if (e.Item is GridDataItem)
 {
  GridDataItem item = (GridDataItem)e.Item;
  CheckBox chk = (CheckBox)item["UniqueName"].Controls[0];
  if (chk.Checked == true)
  {
     item.Style.Add("font-weight", "bold");
  }
 }
}

Thanks,
Shinu.

[John]

I'm getting an error on the checkbox line
cannot convert type system.web.ui.control to system.windows.forms.checkbox

[Casey]

Hi John,

It sounds like you may have both System.Web.UI and System.Windows.Forms referenced in your app. Try prefacing Checkbox with "System.Web.UI." and see if that helps!

Thanks,
Casey

[John]

Yeah I reference both,  however, prefacing it with System.Web.UI.Checkbox claims that Checkbox is not in System.Web.UI
(Thank you though for the suggestion)

[Casey]

Oooops, sorry about that. Try: System.Web.UI.WebControls.Checkbox

[John]

Great success in that it accepts it and doesn't complain anymore (Much thanks!).   However the rows where bold is true are not being bolded still.   I'm missing something else perhaps?

protected void RadGrid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
    {
        if (e.Item is GridDataItem)
        {
            GridDataItem item = (GridDataItem)e.Item;
            System.Web.UI.WebControls.CheckBox chk = (System.Web.UI.WebControls.CheckBox)item["Bold"].Controls[0];
            if (chk.Checked == true)
            {
                item.Style.Add("font-weight", "bold");
            }
        }
    }

[Casey]

I use almost the same approach recommended by Shinu, except I set the property of the GridDataItem instead of adding styles to it. 

protected void RadGrid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
    {
        if (e.Item is GridDataItem)
        {
            GridDataItem item = (GridDataItem)e.Item;
            System.Web.UI.WebControls.CheckBox chk = (System.Web.UI.WebControls.CheckBox)item["Bold"].Controls[0];
            if (chk.Checked == true)
            {
                item.Font.Bold = true;
            }
        }
    }

[John]

Hmm, gave it a go but still no dice.

[John]

It doesn't seem to be calling the RadGrid1_ItemDataBound function,   

I should have noted that I'm loading the data through a datatable through NeedDataSource

[Casey]

Have you added the event to the RadGrid in your .aspx page? OnItemDataBound="RadGrid1_ItemDataBound" 

If you put a breakpoint put in that event is it hit? 

[John]

That's what I needed,  thanks!   The function is getting hit now.

However I'm now getting a Specified argument was out of the range of valid values now hah.  
I'm guessing it's because within the Bold column, there are some nulls,  I can fix it database side so there aren't nulls, but just out of curiosity what would be the way to check for that?

Also thanks so much for the very good and speedy help!

[John]

Actually I lied,   I edited the query to take only values where bold is null and I'm still getting that Specified Argument was out of the range of valid values for 

System.Web.UI.WebControls.CheckBox chk = (System.Web.UI.WebControls.CheckBox)item["Bold"].Controls[0];

[Casey]

What type of column is the Bold column bound to in your RadGrid? 

[John]

Within Radgrid itself?   I don't think I explicitly bound it to anything... which is probably the problem?

The only place I defined it was here

<telerik:GridBoundColumn DataField="Bold" HeaderText="Bold" UniqueName="Bold"></telerik:GridBoundColumn>

[Casey]

That explains the error. I think Shinu was assuming you were using a GridCheckBoxColumn. It's fine that you aren't, but instead of trying to get a reference to the Checkbox, you can just check the value of the text property. I'm assuming you are using 0 and 1 and that you aren't switching to False/True when populating your DataTable.

protected void RadGrid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
    {
        if (e.Item is GridDataItem)
        {
            GridDataItem item = (GridDataItem)e.Item;
            if (item["Bold"].Text == "1")
            {
                item.Font.Bold = true;
            }
        }
    }

[John]

That did it, you rock,  when it's getting loaded in the datatable it is switching to true/false but when checking for it, success is had.

Now the last million dollar question (it may not be the last..) is,  can I do what's currently happening without actually showing the bold column?

[John]

Figured it out,  just setting the gridboundcolumn for Bold as Display="false" did the trick.


Thanks so much for the assistance Casey!

[Casey]

No problem. Glad I could help!