devExpress打印预览
devExpress的打印预览方法分两种方式：web方式和winform方式。
一、web方式
1、添加web窗体，名为preview.aspx.cs,拖入dev的ReportToolbar控件，名为ReportTool1和ReportViewer控件，名为ReportViewer1。设置ReportTool1的ReportViewerID的属性值为ReportViewer1。
2、preview.aspx.cs的后台代码
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protected
void
Page_Load(
object
sender, EventArgs e)
{
if
(Page.Request[
"id"
] !=
null
)
//id为传值
{
int
id =
int
.Parse(Page.Request[
"id"
].ToString());
XtraReport2 report =
new
XtraReport2(id);
ReportViewer1.Report = report;
report.DataSource = bll_purchaseOrder.GetList(
" id="
+ id);
}
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3、添加devExpress的Report Class，名为XtraReport2.cs。在报表模版中拖入各个控件。
4、XtraReport2.cs的后台代码
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public
XtraReport2(
int
id)
{
InitializeComponent();
dataBind(id);
}
private
void
dataBind(
int
id)
{
lblCode.DataBindings.Add(
"Text"
,DataSource,
"code"
);
lblSupplier.DataBindings.Add(
"Text"
,DataSource,
"suppliersName"
);
lblDate.DataBindings.Add(
"Text"
,DataSource,
"purchaseDate"
,
"{0:yyyy-MM-dd}"
);
lblHandle.DataBindings.Add(
"Text"
,DataSource,
"handlePerson"
);
lblRemark.DataBindings.Add(
"Text"
,DataSource,
"remark"
);
lbCreatePerson.DataBindings.Add(
"Text"
,DataSource,
"createName"
);
lbCreateDate.DataBindings.Add(
"Text"
,DataSource,
"createDate"
,
"{0}"
);
lbAuditPerson.DataBindings.Add(
"Text"
,DataSource,
"auditName"
);
lbAuditDate.DataBindings.Add(
"Text"
,DataSource,
"auditDate"
);
pgOrderDetail.DataSource = bll_purchaseOrderDetail.GetListByOrderId(id);
//pgOrderDetail为Dev的XtraPivotGrid控件
}
//事件
private
void
pgOrderDetail_FieldValueDisplayText(
object
sender, DevExpress.XtraReports.UI.PivotGrid.PivotFieldDisplayTextEventArgs e)
{
//将控件的“Grand Total”汉化成"合计"
if
(e.ValueType == DevExpress.XtraPivotGrid.PivotGridValueType.GrandTotal)
if
(e.DisplayText ==
"Grand Total"
)
e.DisplayText =
"合计:"
;
}
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二、winform方式
winform方式有两种，一种是直接弹出dev的预览模版，另一种是弹出自定义的预览窗口。
1、直接弹出dev的预览模版的方式
（1）添加Dev的Report Class，名为XtraReport1.cs，拖入各个控件。
（2）在有打印预览按钮的窗口，打印预览按钮的点击事件代码如下
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private
void
barLargeButtonItem1_ItemClick(
object
sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
DataTable dt =
new
DataTable();
DataColumn dcTheme =
new
DataColumn(
"theme"
,
typeof
(
string
));
dt.Columns.Add(dcTheme);
dt.Columns.Add(dcMain);
DataRow dr = dt.NewRow();
dr[
"theme"
] = lib_company.getCompanyByID(frmMain.GUID,
int
.Parse(co_title.EditValue.ToString())).Company;
dr[
"main"
] = rec_Main.HtmlText;
dt.Rows.Add(dr);
XtraReport1 report =
new
XtraReport1();
report.DataSource = dt;
report.dataBind();
ReportPrintTool printTool =
new
ReportPrintTool(report);
printTool.ShowPreviewDialog();
}
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（3）XtraReport1的后台代码
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2、弹出自定义的预览窗口
（1）添加dev的Report Class，名为XtraReport1.cs。拖入各个控件。
（2）XtraReport1.cs的后台代码
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public
XtraReport1()
{
InitializeComponent();
}
public
void
dataBind(
string
company)
{
xlblTheme.DataBindings.Add(
"Text"
,DataSource,
"theme"
);
xrtMain.DataBindings.Add(
"Html"
,DataSource,
"main"
);
}
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（3）添加Windows窗体，名为preview.cs，拖入dev的Reporting部分的documentViewer控件，在该控件右上方的三角菜单中选择“create standard toolbar”。
（4）preview.cs的后台代码
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public
partial
class
preview : Form
{
DataTable dt;
public
preview(DataTable dt1)
{
InitializeComponent();
dt = dt1;
}
private
void
view_Load(
object
sender, EventArgs e)
{
XtraReport1 report =
new
XtraReport1();
report.DataSource = dt;
report.dataBind();
this
.documentViewer1.PrintingSystem = report.PrintingSystem;
report.CreateDocument();
}
}
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（5）在有打印预览按钮的窗口,打印预览按钮的点击事件代码
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private
void
barLargeButtonItem1_ItemClick(
object
sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
DataTable dt =
new
DataTable();
DataColumn dcTheme =
new
DataColumn(
"theme"
,
typeof
(
string
));
DataColumn dcMain =
new
DataColumn(
"main"
,
typeof
(
string
));
dt.Columns.Add(dcTheme);
dt.Columns.Add(dcMain);
DataRow dr = dt.NewRow();
dr[
"theme"
] = lib_company.getCompanyByID(frmMain.GUID,
int
.Parse(co_title.EditValue.ToString())).Company;
dr[
"main"
] = rec_Main.HtmlText;
dt.Rows.Add(dr);
preview preview =
new
preview(dt);
preview.ShowDialog();
}
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