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Custom report, NullReference Exception

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medialog asked on 11 Oct 2010, 02:32 PM

Hello,

Before to buy Telerik Reporting i try to make a report programmatically with the trial version.

My first problem was in Silverlight you must quote this ligne :

WebRequest.RegisterPrefix("http://", WebRequestCreator.ClientHttp);

Else you have a message like below :
"Report is unavailable or session has expired."

My second problem unsolve is when I build my report programmatically I have got a NullReference Exception in the report Viewver.
I dont understand this Exception, but it throw only when I build the details.

Anyone has got an idea what is wrong in my source code?

My report :

public class MedialogSimpleTableReport : Telerik.Reporting.Report

{

#region Fields

Telerik.Reporting.DetailSection _detail;

ObjectDataSource _objectDataSource;

Table _table_arrivee;

PageFooterSection _pageFooterSection;

TextBox _tb_footer_page;

PageHeaderSection _pageHeaderSection;

TextBox _tbTitle_page;

ReportFooterSection _reportFooterSection;

Panel _panel_ReportBottom;

TextBox _tb_end_report2;

TextBox _tb_Pages;

TextBox _tb_End_report;

System.ComponentModel.ComponentResourceManager _resources;

PictureBox _pictureBox_Logo;

TextBox _tb_Report_header;

TableGroup _tableGroupDetail;

TableGroup _tableGroupRows;

List<TableGroup> _tableGroupsTitle;

List<TextBox> _titlesTextBoxes;

List<TextBox> _datasTextBoxes;

List<TextBox> _totalTextBoxes;

#endregion

public double WidthPage

{

get { return 27D; }

}

public MedialogSimpleTableReport()

{

Initialize();

}

public void Initialize()

{

this._detail = new Telerik.Reporting.DetailSection();

this._table_arrivee = new Telerik.Reporting.Table();

this._objectDataSource = new Telerik.Reporting.ObjectDataSource();

this._pageFooterSection = new Telerik.Reporting.PageFooterSection();

this._tb_footer_page = new Telerik.Reporting.TextBox();

this._pictureBox_Logo = new Telerik.Reporting.PictureBox();

this._pageHeaderSection = new Telerik.Reporting.PageHeaderSection();

this._tbTitle_page = new Telerik.Reporting.TextBox();

this._tb_Pages = new Telerik.Reporting.TextBox();

this._tb_Report_header = new Telerik.Reporting.TextBox();

this._reportFooterSection = new Telerik.Reporting.ReportFooterSection();

this._panel_ReportBottom = new Telerik.Reporting.Panel();

this._tb_end_report2 = new Telerik.Reporting.TextBox();

this._tb_End_report = new Telerik.Reporting.TextBox();

this._resources = new System.ComponentModel.ComponentResourceManager(typeof(MedialogSimpleTableReport));

BuildPageHeader();

BuildDataSource();

BuildReportFooter();

BuildPageFooter();

BuildDetail();

BuildPage();

}

void BuildDataSource()

{

this._objectDataSource.DataSource = typeof(Telerik.Reporting.Examples.CSharp.Test.ArriveesPrevues);

this._objectDataSource.Name = "_objectDataSource";

}

void BuildPageHeader()

{

// _pageHeaderSection

//

this._pageHeaderSection.Height = new Telerik.Reporting.Drawing.Unit(1.6998001337051392D, Telerik.Reporting.Drawing.UnitType.Cm);

this._pageHeaderSection.Items.AddRange(new Telerik.Reporting.ReportItemBase[] {

this._tbTitle_page,

this._tb_Pages,

this._tb_Report_header});

this._pageHeaderSection.Name = "_pageHeaderSection";

//

// _tbTitle_page

//

this._tbTitle_page.Location = new Telerik.Reporting.Drawing.PointU(new Telerik.Reporting.Drawing.Unit(0.0037841796875D, Telerik.Reporting.Drawing.UnitType.Pixel), new Telerik.Reporting.Drawing.Unit(0.00377655029296875D, Telerik.Reporting.Drawing.UnitType.Pixel));

this._tbTitle_page.Name = "_tbTitle_page";

this._tbTitle_page.Size = new Telerik.Reporting.Drawing.SizeU(new Telerik.Reporting.Drawing.Unit(897.55096435546875D, Telerik.Reporting.Drawing.UnitType.Pixel), new Telerik.Reporting.Drawing.Unit(22.677162170410156D, Telerik.Reporting.Drawing.UnitType.Pixel));

this._tbTitle_page.Style.Font.Bold = true;

this._tbTitle_page.Value = "BLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLA";

//

// _tb_Pages

//

this._tb_Pages.Location = new Telerik.Reporting.Drawing.PointU(new Telerik.Reporting.Drawing.Unit(897.56231689453125D, Telerik.Reporting.Drawing.UnitType.Pixel), new Telerik.Reporting.Drawing.Unit(0.003780364990234375D, Telerik.Reporting.Drawing.UnitType.Pixel));

this._tb_Pages.Name = "_tb_Pages";

this._tb_Pages.Size = new Telerik.Reporting.Drawing.SizeU(new Telerik.Reporting.Drawing.Unit(122.9063720703125D, Telerik.Reporting.Drawing.UnitType.Pixel), new Telerik.Reporting.Drawing.Unit(22.677162170410156D, Telerik.Reporting.Drawing.UnitType.Pixel));

this._tb_Pages.Style.Font.Bold = true;

this._tb_Pages.Style.TextAlign = Telerik.Reporting.Drawing.HorizontalAlign.Right;

this._tb_Pages.Style.VerticalAlign = Telerik.Reporting.Drawing.VerticalAlign.Middle;

this._tb_Pages.Value = "=\'Page \' + PageNumber + \' / \' + PageCount";

}

void ReportHeader()

{

this._tb_Report_header.Location = new Telerik.Reporting.Drawing.PointU(new Telerik.Reporting.Drawing.Unit(0D, Telerik.Reporting.Drawing.UnitType.Pixel), new Telerik.Reporting.Drawing.Unit(22.688491821289062D, Telerik.Reporting.Drawing.UnitType.Pixel));

this._tb_Report_header.Name = "_tb_Report_header";

this._tb_Report_header.Size = new Telerik.Reporting.Drawing.SizeU(new Telerik.Reporting.Drawing.Unit(1020.4647827148438D, Telerik.Reporting.Drawing.UnitType.Pixel), new Telerik.Reporting.Drawing.Unit(22.665840148925781D, Telerik.Reporting.Drawing.UnitType.Pixel));

this._tb_Report_header.Style.Font.Bold = true;

this._tb_Report_header.Value = "=\'.......................................... \' + NOW()";

}

void BuildDetail()

{

_tableGroupDetail = new Telerik.Reporting.TableGroup();

_tableGroupRows = new Telerik.Reporting.TableGroup();

var headerDatas = new ArriveeDatas();

_tableGroupsTitle = new List<TableGroup>();

_titlesTextBoxes = new List<TextBox>();

_datasTextBoxes = new List<TextBox>();

_totalTextBoxes = new List<TextBox>();

this._detail.Height = new Telerik.Reporting.Drawing.Unit(1.4000000953674316D, Telerik.Reporting.Drawing.UnitType.Cm);

this._detail.Items.AddRange(new Telerik.Reporting.ReportItemBase[] {

this._table_arrivee});

this._detail.Name = "_detail";

this._detail.Style.VerticalAlign = Telerik.Reporting.Drawing.VerticalAlign.Middle;

for (int i = 0; i < headerDatas.Headers.Count; i++)

_tableGroupsTitle.Add(new TableGroup());

for (int i = 0; i < headerDatas.Headers.Count; i++)

_titlesTextBoxes.Add(new TextBox());

for (int i = 0; i < headerDatas.Headers.Count; i++)

_datasTextBoxes.Add(new TextBox());

for (int i = 0; i < headerDatas.Headers.Count; i++)

_totalTextBoxes.Add(new TextBox());

for (int i = 0; i < _titlesTextBoxes.Count; i++)

{

_titlesTextBoxes[i].Dock = System.Windows.Forms.DockStyle.Fill;

_titlesTextBoxes[i].CanShrink = true;

//_titlesTextBoxes[i].Name = headerDatas.Headers[i].TitleValue;

_titlesTextBoxes[i].Style.TextAlign = headerDatas.Headers[i].HorizontalAlignTitle;

_titlesTextBoxes[i].Style.VerticalAlign = headerDatas.Headers[i].VerticalAlignTitle;

_titlesTextBoxes[i].Value = headerDatas.Headers[i].TitleValue;

_titlesTextBoxes[i].Style.BackgroundColor = headerDatas.Headers[i].BackgroundTitleColor;

}

for (int i = 0; i < _datasTextBoxes.Count; i++)

{

_datasTextBoxes[i].Dock = System.Windows.Forms.DockStyle.Fill;

_datasTextBoxes[i].CanShrink = true;

_datasTextBoxes[i].Name = "_tb_" + headerDatas.Headers[i].TitleValue + "_data";

_datasTextBoxes[i].Style.TextAlign = headerDatas.Headers[i].HorizontalAlignData;

_datasTextBoxes[i].Style.VerticalAlign = headerDatas.Headers[i].VerticalAlignData;

//_datasTextBoxes[i].Value = headerDatas.Headers[i].DataValue;

}

for (int i = 0; i < _totalTextBoxes.Count; i++)

{

_totalTextBoxes[i].Dock = System.Windows.Forms.DockStyle.Fill;

_totalTextBoxes[i].CanShrink = true;

_totalTextBoxes[i].Name = "_tb_" + headerDatas.Headers[i].TitleValue + "_total";

_totalTextBoxes[i].Style.TextAlign = headerDatas.Headers[i].HorizontalAlignTotal;

_totalTextBoxes[i].Style.VerticalAlign = headerDatas.Headers[i].VerticalAlignTotal;

//_totalTextBoxes[i].Value = headerDatas.Headers[i].TotalValue;

}

this._table_arrivee.Body.Columns.Add(new Telerik.Reporting.TableBodyColumn(new Telerik.Reporting.Drawing.Unit(1.8500000238418579D, Telerik.Reporting.Drawing.UnitType.Cm)));