实现Excel 表格功能的ActiveReports动态报表

protected

virtual

void

BeginBuild(ActiveReport3rpt)

{

//......更多初始化代码

m_defaultHeight=DesignOptions.DefaultPageDetailByNewReport;

m_hasBandeds=this

.Fields.HasBandedColumns;

m_printWidth=RoundTowDecimals(Settings.CalcPaperValidWidth(rpt.PageSettings));//打印空间宽度

if

(m_printWidth==-1)m_printWidth=DesignOptions.DefaultPrintWidthByNewReport;//默认宽度

m_printWidthScale=this

.Settings.AutoScaleFieldsSizeByPaperSpace?CalcSacleWidth(m_printWidth):1;

}

protected

SizeFGetFieldSize(ReportFieldfield,bool

fixFieldHeight)

{

return

GetFieldSize(field,fixFieldHeight,this

.DefaultHeight);

}

protected

SizeFGetFieldSize(ReportFieldfield,float

customHeight)

{

return

GetFieldSize(field,false

,customHeight);

}

protected

SizeFGetFieldSize(ReportFieldfield,bool

fixFieldHeight,float

fixHeight)

{

return

new

SizeF(RoundTowDecimals(CalcInchByFontSize(field.Width)*PrintWidthScale),fixFieldHeight?fixHeight:(this

.HasBandeds&&field.ParentBanded==null

?fixHeight*2:fixHeight));

}

///

///按文本和字体获取控件的大小,不适合于字段

///

///

文本

///

字体

///

是否返回字体高度,否则返回默认高度

///

protected

SizeFGetSize(string

text,Fontfont,bool

customHeight)

{

Graphicsg=Owner.CreateGraphics();

using

(g)

{

SizeFresult=g.MeasureString(text,font);

return

new

SizeF(RoundTowDecimals(CalcInchByFontSize(result.Width)*PrintWidthScale),(customHeight?ConvertToInch(result.Height):this

.DefaultHeight));

}

}

///

///计算固定带宽的总宽度

///

///

字段的固定带宽

///

public

SizeFGetBandedSize(ReportFieldbanded)

{

float

totalWidth=0;

foreach

(ReportFieldfieldin

this

.Fields)

{

if

(field.ParentBanded.Equals(banded))totalWidth+=GetFieldSize(field,true

).Width;

}

return

new

SizeF(totalWidth,this

.DefaultHeight);

}

public

float

CalcSacleWidth(float

printWidth)

{

float

totalWidth=0;

foreach

(ReportFieldfieldin

this

.Fields)

{

if

(field.Visible==false

)continue

;

totalWidth+=field.Width;

}

if

(Groups!=null

)

{

int

count=Groups.VisibleCount;

if

(count>1)totalWidth+=(count-1)*(DEFAULT_GROUP_LEFT*100);

}

float

result=printWidth/ConvertToInch(totalWidth);

if

(result<0)result=1;

return

result;

}

public

static

float

RoundTowDecimals(float

value

)

{

return

(float

)(decimal

.Round((decimal

)value

,DEFAULT_ROUND_DECIMALS,MidpointRounding.AwayFromZero));

}

///

///将像素转到到英寸

///

///

像素

///

public

float

ConvertToInch(float

fieldDPI)

{

return

fieldDPI/100;

}

///

///计算字段的实际宽度(英寸,不应用缩放比例)

///

///

像素

///

protected

float

CalcInchByFontSize(float

fieldDPI)

{

float

inchWidth=ConvertToInch(fieldDPI);

float

multiple=0;

if

(this

.Settings.ReportFont.Size>=11)multiple=0.5f;

else

if

(this

.Settings.ReportFont.Size>=10)multiple=0.2f;

else

if

(this

.Settings.ReportFont.Size>=9)multiple=0.1f;

return

inchWidth+(inchWidth*multiple);

}

CreateDynamicReportCoreSourceCode

///

///获取动态报表

///

public

ActiveReport3CreateDynamicReport()
{
bool

buildingEvent=ReportFieldsBuilding!=null

;
bool

cancelBuild=false

;
if

(this

.Fields.Count==0)throw

new

NullReferenceException("报表可选字段为空！

");

int

visibleFieldsCount=this

.Fields.VisibleCount;
if

(visibleFieldsCount==0)throw

new

NullReferenceException("报表已选字段为空！

");

if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.CreateReport,out

cancelBuild))return

null

;

DataDynamics.ActiveReports.ActiveReport3rpt=new

DataDynamics.ActiveReports.ActiveReport3();
rpt.Name="rptDynamicReport

";
rpt.MasterReport=this

.Settings.OptionsHeader.LogoStatus!=LogoTypeEnum.None;

try

{

int

visibleGroupsCount=Groups==null

?0:this

.Groups.VisibleCount;
int

visibleSummariesCount=Summaries==null

?0:this

.Summaries.VisibleCount;

this

.BeginBuild(rpt);
/***************************初始化段落******************************/

if

(visibleGroupsCount>0)
{
//-------------------------------------------------------创建分组

if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.CreateGF,out

cancelBuild))return

null

;

groupHeaders=new

System.Collections.ArrayList();
groupFooters=new

System.Collections.ArrayList();

int

groupIndex=1;
bool

visibleGroupFooter=Settings.SummarySectionAt==ReportSummarySection.GroupAndLastPageFooter&&visibleSummariesCount>0;
foreach

(ReportFieldgroupFieldin

this

.Groups)
{
if

(groupField.Visible==false

)continue

;
string

ghName=SectionType.GroupHeader.ToString()+groupIndex.ToString();
string

gfName=SectionType.GroupFooter.ToString()+groupIndex.ToString();

GroupHeadergh=new

GroupHeader();
gh.Name=ghName;
gh.Height=this

.DefaultHeight+DEFAULT_GROUP_TOP;

gh.DataField=groupField.DataField;
gh.GroupKeepTogether=GroupKeepTogether.All;
gh.KeepTogether=true

;
gh.RepeatStyle=RepeatStyle.OnColumn;
groupHeaders.Add(gh);

GroupFootergf=new

GroupFooter();
gf.Name=gfName;
gf.Height=gh.Height;
gf.Visible=visibleGroupFooter;
groupFooters.Add(gf);

groupIndex++;
}
}
/***************************初始化页宽******************************/

rpt.PrintWidth=this

.PrintWidth;

/***************************初始化页眉******************************/

if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitPH,out

cancelBuild))return

null

;

if

(Settings.OptionsHeader.LogoStatus!=LogoTypeEnum.None)
{
//-------------------------------------------------------创建LOGO

SubReportsubReport=new

SubReport();
subReport.Name="subReport_TitleLogo

";
subReport.CanGrow=true

;
subReport.CanShrink=true

;
subReport.CloseBorder=false

;
CIMS.Report.Utility.Utils.SetHeaderSubReport(subReport);
if

(Settings.OptionsHeader.LogoStatus==LogoTypeEnum.LargeCard)
subReport.Report=Utility.Utils.CreateHeaderSubReport(Settings.PublicSet.ReportHeaderLogo);
else

subReport.Report=new

Headers.HeaderSZ_Small();

subReport.Report.Run();
subReport.ReportName=subReport.Report.Name;
subReport.Location=new

System.Drawing.PointF(0,0);
this

.PageHeader.Controls.Add(subReport);
}
//-------------------------------------------------------创建标题

if

(string

.IsNullOrEmpty(Settings.OptionsHeader.TitleText)==false

)
{
LabellabTitle=new

Label();//创建正标题栏

labTitle.Name="labTitle

";
labTitle.Border.BottomStyle=BorderLineStyle.ExtraThickSolid;//加粗实线

labTitle.Font=Settings.ReportFontTitle;
labTitle.Text=Settings.OptionsHeader.TitleText;
labTitle.Alignment=TextAlignment.Center;
labTitle.VerticalAlignment=VerticalTextAlignment.Middle;

SizeFs=GetSize(labTitle.Text,labTitle.Font,true

);
s.Width+=0.45f;
labTitle.Size=s;
labTitle.Location=new

PointF((rpt.PrintWidth/2)-(s.Width/2),0);
this

.PageHeader.Controls.Add(labTitle);

if

(string

.IsNullOrEmpty(Settings.OptionsHeader.TitleSubText)==false

)
{
LabellabSubTitle=new

Label();////创建子标题栏

labSubTitle.Name="labSubTitle

";
labSubTitle.Font=Settings.ReportFontSubTitle;
labSubTitle.Text=Settings.OptionsHeader.TitleSubText;
labSubTitle.Alignment=TextAlignment.Left;
labSubTitle.VerticalAlignment=VerticalTextAlignment.Middle;
labSubTitle.ForeColor=SystemColors.ControlDarkDark;

s=GetSize(labSubTitle.Text,labSubTitle.Font,true

);
s.Width+=0.45f;
labSubTitle.Size=s;
labSubTitle.Location=new

PointF(labTitle.Left+labTitle.Width+0.1f,labTitle.Height-s.Height);

this

.PageHeader.Controls.Add(labSubTitle);
}
}

float

initFieldLeft=0;
/***************************初始化分组******************************/

if

(visibleGroupsCount>0)
{
if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitFieldsHeaderInGH,out

cancelBuild))return

null

;

int

groupIndex=1;
foreach

(ReportFieldgroupFieldin

this

.Groups)
{
if

(groupField.Visible==false

)continue

;

string

ghName=SectionType.GroupHeader.ToString()+groupIndex.ToString();
GroupHeadergh=GetGroupHeader(ghName);
CreateGroupField(gh,groupField,groupIndex);//创建分组控件

groupIndex++;
}
GroupHeaderlastGH=(GroupHeader)GroupHeaders[GroupHeaders.Count-1];//最后分组,用于创建明细字段的标题

lastGH.Controls[0].Border.BottomStyle=BorderLineStyle.None;
lastGH.Controls[1].Border.BottomStyle=BorderLineStyle.None;
initFieldLeft=lastGH.Controls[0].Left;//于分组中的第一个控件对齐

CreateFieldsHeader(lastGH,initFieldLeft);
}
else

{
if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitFieldsHeaderInPH,out

cancelBuild))return

null

;

CreateFieldsHeader(this

.PageHeader,initFieldLeft);
}

/***************************创建明细字段******************************/

if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitFieldsInDetail,out

cancelBuild))return

null

;

this

.CreateDetailFields(initFieldLeft);

/*************************创建页脚统计字段****************************/

if

(visibleSummariesCount>0)
{
if

(visibleGroupsCount>0&&this

.Settings.SummarySectionAt==ReportSummarySection.GroupAndLastPageFooter)
{
if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitSummariesInGF,out

cancelBuild))return

null

;

GroupFootergf=(GroupFooter)this

.GroupFooters[this

.GroupFooters.Count-1];//统计放最后一个分组段尾

gf.Height=this

.DefaultHeight;

this

.CreateFieldsSummaries(gf,initFieldLeft,true

);
}

if

(this

.PageFooter.Height<this

.DefaultHeight)this

.PageFooter.Height=this

.DefaultHeight;

if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitSummariesInPF,out

cancelBuild))return

null

;
this

.CreateFieldsSummaries(this

.PageFooter,initFieldLeft,false

);
}

/*********************创建页脚签名栏和报表信息************************/

if

(this

.Settings.OptionsFooter.CanCreatePageFooter)
{
if

(buildingEvent&&OnRaiseReportBuildingEvent(ReportBuildActive.InitPF,out

cancelBuild))return

null

;

if

(visibleSummariesCount>0&&this

.PageFooter.Height<(this

.DefaultHeight*2+0.1f))this

.PageFooter.Height=this

.DefaultHeight*2+0.1f;
this

.CreatePageFooterInfos();
}
return

rpt;
}
catch

(Exceptionerr)
{
Common.ExceptionMessenger.OnThrowError(err.StackTrace,err);
if

(rpt!=null

)rpt.Dispose();
return

null

;
}
finally

{
if

(cancelBuild)
{
if

(rpt!=null

)rpt.Dispose();
}
else

{
if

(rpt!=null

)
{
try

{
this

.EndBuild(rpt);
}
catch

{}
}
}
}
}