代码

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> /// <summary>

    /// 扩展DataPager类，一是要显示总数据数有多少，二是修改TextBox的宽度

    /// </summary>

    public class ExtendDataPager : DataPager

    {

        //定义变量

        TextBlock tbCurrentPagePrefix;

        TextBlock tbCurrentPageSuffix;

        Button btnNextPageButton;

        Button btnFirstPageButton;

        Button btnLastPageButton;

        Button btnPreviousPageButton;

        TextBox txtCurrentPageTextBox;

        int _dataCount = ;

        /// <summary>

        /// 取得数据总数

        /// </summary>

        public int DataCount

        {

            get { return _dataCount; }

            set { _dataCount = value; }

        }

        double _CurrentPageTextBoxWidth = ;

        /// <summary>

        /// 显示当前页的TextBox的宽度,默认宽度为55

        /// </summary>

        public double CurrentPageTextBoxWidth

        {

            get { return _CurrentPageTextBoxWidth; }

            set { _CurrentPageTextBoxWidth = value; }

        }

        public ExtendDataPager():base()

        {

        }

        /// <summary>

        /// 重写  当应用新模板时生成 System.Windows.Controls.DataPager 控件的可视化树。

        /// </summary>

        public override void OnApplyTemplate()

        {

            base.OnApplyTemplate();

            //通过名称取得模板中的元素

            tbCurrentPagePrefix = GetTemplateChild("CurrentPagePrefixTextBlock") as TextBlock;

            tbCurrentPageSuffix = GetTemplateChild("CurrentPageSuffixTextBlock") as TextBlock;

            btnNextPageButton = GetTemplateChild("NextPageButton") as Button;

            btnFirstPageButton = GetTemplateChild("FirstPageButton") as Button;

            btnLastPageButton = GetTemplateChild("LastPageButton") as Button;

            btnPreviousPageButton = GetTemplateChild("PreviousPageButton") as Button;

            txtCurrentPageTextBox = GetTemplateChild("CurrentPageTextBox") as TextBox;

            //重写以下元素的事件

            btnNextPageButton.Click += new RoutedEventHandler(

                (o, e) =>

                {

                    ExtendItem();

                }

                );

            btnFirstPageButton.Click += new RoutedEventHandler(

                (o, e) =>

                {

                    ExtendItem();

                }

                );

            btnLastPageButton.Click += new RoutedEventHandler(

                (o, e) =>

                {

                    ExtendItem();

                }

                );

            btnPreviousPageButton.Click += new RoutedEventHandler(

                (o, e) =>

                {

                    ExtendItem();

                }

                );

            txtCurrentPageTextBox.KeyDown += new KeyEventHandler(

                (o, e) =>

                {

                    ExtendItem();

                }

            );

            ExtendItem();

        }

        /// <summary>

        /// 扩展项

        /// </summary>

        private void ExtendItem()

        {

            //重写以下元素显示的内容以及显示当前页的TextBox的宽度

            tbCurrentPagePrefix.Text = "第";

            tbCurrentPageSuffix.Text = "页  共" + this.PageCount.ToString() + "页  共"+DataCount.ToString()+"条数据";

            txtCurrentPageTextBox.Width = CurrentPageTextBoxWidth;

        }

    }