本文说明如何使用MyReport来实现Flex DataGrid组件的自动化打印预览和打印功能。

实现代码

<?xmlversion="1.0" encoding="utf-8"?>

<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"

width="100%"height="100%" fontSize="24" horizontalAlign="center" paddingBottom="40"

paddingLeft="40" paddingRight="40" paddingTop="40" creationComplete="Init()">

<mx:Script>

<![CDATA[

import mx.collections.ArrayCollection;

import myreport.ReportEngine;

import myreport.ReportViewer;

import myreport.data.report.CaptionCellSetting;

import myreport.data.report.CaptionRowSetting;

import myreport.data.report.ReportSettings;

import myreport.data.report.TableCellSetting;

import myreport.data.report.TableColumnSetting;

import myreport.data.report.TableRowSetting;

private function Init():void

{

//初始化时设置DataGrid的数据源

_Grid.dataProvider = GetTableData();

}

private function GetTableData():ArrayCollection

{

var list:ArrayCollection = new ArrayCollection();

for (var i:int =0; i < 25; i++)

{

list.addItem({ID: i, 名称: "商品信息XXX 规格XXX 型号XXX", 数量: i+1, 金额: (i+1)*10, 日期: newDate()});

}

return list;

}

private function PreviewReport():void

{

//预览

var style:ReportSettings= DataGridToMyReport(_Grid, "示例：DataGridToMyReport");

myreport.ReportViewer.Instance.Show(new XML(style.ToXML()), style.TableData, style.ParameterData);

}

private function PrintReport():void

{

//直接打印

var style:ReportSettings= DataGridToMyReport(_Grid, "示例：DataGridToMyReport");

myreport.ReportEngine.PrintAsync(new XML(style.ToXML()), style.TableData, style.ParameterData);

}

/**

*

* 封装的转换方法，实现DataGid转成报表样式

*

* @param grid: 表格控件(传入前确保表格控件已经设置数据源)

* @param title：报表标题

*/

private function DataGridToMyReport(grid:DataGrid,title:String):ReportSettings

{

var style:ReportSettings = new ReportSettings();

//数据源

style.TableData = grid.dataProvideras ArrayCollection;

var params:Dictionary = newDictionary();

params.Title = title;

style.ParameterData = params;

//报表样式

style.TableHeaderRepeat = true;//表格头重复

style.TableFooterRepeat = true;//表格尾重复

style.AutoWidth = true;//报表宽度自动递增

style.PageByColumn = true;//分栏打印

style.SetUnit("px");

//标题

var captionRow:CaptionRowSetting = new CaptionRowSetting();

var caption:CaptionCellSetting = new CaptionCellSetting();

caption.Width = style.ClientWidth;

caption.Style.FontBold = true;

caption.Style.FontSize = 16;

caption.Style.TextAlign = "center";

caption.Value = "=@Title";

captionRow.CaptionCellSettings.push(caption);

style.PageHeaderSettings.push(captionRow);

//表格

var headerRow:TableRowSetting = new TableRowSetting();

var contentRow:TableRowSetting = new TableRowSetting();

var gridColumns:Array = grid.columns;

for each(var gridCol:DataGridColumnin gridColumns)

{

if(!gridCol.visible)

continue;

//添加列

var column:TableColumnSetting = new TableColumnSetting();

column.Width = gridCol.width;

style.TableColumnSettings.push(column);

//添加表格头单元格

var headerCell:TableCellSetting = new TableCellSetting();

headerCell.Style.FontBold = true;

headerCell.Style.TextAlign = "center";

headerCell.Value = gridCol.headerText;

headerRow.TableCellSettings.push(headerCell);

//添加表格主体单元格

var contentCell:TableCellSetting = new TableCellSetting();

contentCell.Value = "=#" + gridCol.dataField;

contentRow.TableCellSettings.push(contentCell);

}

style.TableHeaderSettings.push(headerRow);

style.TableDetailSettings.push(contentRow);

return style;

}

]]>

</mx:Script>

<mx:Label text="演示如何用程序动态生成报表样式，实现DataGrid to MyReport。" width="100%" textAlign="center"/>

<mx:Button label="打印预览"click="PreviewReport()"/>

<mx:Button label="直接打印"click="PrintReport()"/>

<mx:DataGridid="_Grid" width="600"height="100%" horizontalScrollPolicy="on">

<mx:columns>

<mx:DataGridColumn dataField="ID" headerText="ID"width="56"/>

<mx:DataGridColumn dataField="名称" headerText="名称"width="200"/>

<mx:DataGridColumn dataField="数量" headerText="数量"width="100"/>

<mx:DataGridColumn dataField="金额" headerText="金额"width="100"/>

<mx:DataGridColumn dataField="日期" headerText="日期"width="200"/>

</mx:columns>

</mx:DataGrid>

</mx:VBox>

效果图

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MyReport介绍

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