从转发器内的标签中删除单词

Question

我正在尝试从标签中删除字词，直到它低于指定的允许宽度。然而，当我循环遍历转发器项时，Width = 0和Text属性总是空的。

我已经尝试将我的代码移动到OnItemDataBound

private void loadData()
{
    Activities activities = new Activities();
    var acts = activities.getNextActivities(3);
    if (acts.Count > 0)
    {
        rptActivities.DataSource = acts;
        rptActivities.DataBind();

        foreach (RepeaterItem item in rptActivities.Items)
        {
            Label lblActName = (Label)item.FindControl("lblActName");
            Unit width = lblActName.Width;
            while (width.Value > 310)
            {
                int pos = lblActName.Text.LastIndexOf(" ") < 0 ? 0 : lblActName.Text.LastIndexOf(" ");
                lblActName.Text = lblActName.Text.Substring(0, pos);
                width = lblActName.Width;
            }
        }
     }
     else
     {
        pnlItems.Visible = false;
        pnlNoItems.Visible = true;
     }
}