How to find out whether current page is the last page in listing transformation in repeater

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This article describe example how to find out whether current page is the last page in "listing" transformation in repeater, especially when built-in paging is enabled. In this particular example we will set different background for last item than for other items.

Please follow procedure bellow:

1) Add custom function for transformation

2) Put following method into MyFunctions.cs file created in step 1:


    /// <summary>
    /// Returns true if current item in transformation is last item. Otherwise returns false.
    /// </summary>
    /// <param name="sender">Transformation object from which the function is called</param>
    /// <param name="count">Count of items displayed by repeater</param>
    /// <param name="index">Index of current item</param>
    public static bool IsCurrentItemLast(Control sender, int count, int index)
    {
        //get the repeater object
        Control myParent = sender;
        while (myParent != null)
        {
            myParent = myParent.Parent;
            if (myParent is CMS.Controls.CMSRepeater)
            {
                CMS.Controls.CMSRepeater myRepeater = myParent as CMS.Controls.CMSRepeater;
                if ((count - 1) == ((myRepeater.PagerControl.PageSize - 1) * myRepeater.PagerControl.CurrentPage + index))
                {
                    return true;
                }
            }
        }
        return false;
    }

3) Put following sample code into transformation of CMSRepeater:

<div style="background-color: <%# MyFunctions.IsCurrentItemLast(this, DataRowView.DataView.Count, DataItemIndex)? "#FFFFAA" : "#AAFFFF" %>;">
 sample text
</div>

If you don't use paging, you may use following expression instead (you don't need to create custom function in this case):

<div style="background-color: <%# (DataRowView.DataView.Count - 1 == DataItemIndex) ? "#FFFFAA" : "#AAFFFF" %>;">
 sample text
</div>

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See also: Adding custom function for transformation

Applies to:

Kentico CMS 5.5 (Should work in previous versions as well)

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