silverlight RadGridView总结三

在RadGridView中进行分组以及导出

分组

主要是在前台进行分组的定义：

前台代码：

<telerik:RadGridView x:Name="RadGridView1" ItemsSource="{Binding Customers}" CanUserFreezeColumns="False" AutoExpandGroups="True" AutoGenerateColumns="False">
            <telerik:RadGridView.GroupDescriptors>
                <telerik:GroupDescriptor Member="Country">
                    <telerik:GroupDescriptor.AggregateFunctions>
                        <telerik:CountFunction Caption="Total customers:" />
                    </telerik:GroupDescriptor.AggregateFunctions>
                </telerik:GroupDescriptor>
            </telerik:RadGridView.GroupDescriptors>
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn Header="CustomerID" DataMemberBinding="{Binding CustomerID}" />
                <telerik:GridViewDataColumn Header="CompanyName" DataMemberBinding="{Binding CompanyName}" />
                <telerik:GridViewDataColumn Header="ContactName" DataMemberBinding="{Binding ContactName}" />
                <telerik:GridViewDataColumn Header="ContactTitle" DataMemberBinding="{Binding ContactTitle}" />
                <telerik:GridViewDataColumn Header="Country" DataMemberBinding="{Binding Country}" />
                <telerik:GridViewDataColumn Header="City" DataMemberBinding="{Binding City}" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>

导出---RadGridView控件自带导出功能（以导出EXCEL为例）

需在前台定义事件---然后在后台定义导出功能。（需要注意的是，将控件设置为隐藏的话导出是不成功的）

定义的事件ElementExporting="控件名称_ElementExporting"

后台代码：

 private void 空间名称_ElementExporting(object sender, GridViewElementExportingEventArgs e)
        {
            if (e.Element == ExportElement.HeaderRow || e.Element == ExportElement.HeaderCell)
            {
                e.Background = Colors.LightGray;
                e.FontSize = 20;
                e.FontWeight = FontWeights.Bold;
                e.Height = 50;
                e.Width = 100;
            }
        }

当然，你的UI中肯定有一个导出的Button的控件来导出，其后台的事件如下：

private void Button控件名称_Click(object sender, RoutedEventArgs e)
        {
            string extensioin = "xls";
            ExportFormat format = ExportFormat.Html;
            SaveFileDialog dialog = new SaveFileDialog();
            dialog.DefaultExt = extensioin;
            dialog.Filter = String.Format("{1} files (*.{0})|*.{0}|All files (*.*)|*.*", extensioin, "Excel");

            dialog.FilterIndex = 1;

            if (dialog.ShowDialog() == true)
            {
                try
                {
                    using (Stream str = dialog.OpenFile())
                    {
                        GridViewExportOptions exportextension = new GridViewExportOptions();
                        exportextension.Format = format;
                        exportextension.Encoding = System.Text.Encoding.GetEncoding("utf-8");//放置乱码的出现
                        exportextension.ShowColumnFooters = true;
                        exportextension.ShowColumnHeaders = true;
                        exportextension.ShowGroupFooters = true;
                        this.SCityGridView.SalesRadGridView.Export(str, exportextension);
                    }
                }
                catch (Exception)
                {

                    
                }
                
            }
        }