Add TextBox in GroupHeader in RunTime

[Jose Ferreira Lima Filho]

Hi,

  I want add textbox in header group in runtime, what wrong in my code?

	private void gp_instrutor_header_ItemDataBinding(object sender, EventArgs e)
	{
	Telerik.Reporting.Processing.GroupSection groupb = (Telerik.Reporting.Processing.GroupSection)sender;
	try
	{
	if (!dsSourceReport.Equals(null))
	{
	gp_instrutor_header.Items.AddRange(Report_Functions.clsReportFunctions.AdicionaTextBoxDinamico(dsSourceReport, "INSTRUTOR", "DS_GRUPO_QUESTAO", "VL_MEDIA", double.Parse("3,2"), double.Parse("0,4"), double.Parse("9,5"), double.Parse("0,85"), double.Parse("0,2"), double.Parse("0,1")));
	}
	}
	catch { }
	}

My Function that generate the textbox colection

	public static ReportItemBase[] AdicionaTextBoxDinamico(DataSet dsReportSource, string _strPrefixo, string _strTermoDescricao, string _strTermoValor, double _dblTamX, double _dblTamY, double _dblPosInicialX, double _dblPosInicialY, double _dblEspassamentoHorizontal, double _dblEspassamentoVertical)
	{
	try
	{
	#region Determinar a quantidade de colunas dinâmicas
	int _intNumeroColunas = 0;
	foreach (DataColumn coluna in dsReportSource.Tables[0].Columns)
	{
	if (coluna.ColumnName.StartsWith(_strPrefixo))
	{
	_intNumeroColunas++;
	}
	}
	_intNumeroColunas = _intNumeroColunas / 2;
	#endregion
	#region Monta Objetos(TextBox) que serão inseridos no relatório
	TextBox txtDynamicColumnDescription;
	TextBox txtDynamicColumnValue;
	List lstControls = new List();
	for (int i = 1; i <= _intNumeroColunas; i++)
	{
	if (!_strTermoDescricao.Equals(""))
	{
	#region Controle de Descrição (titulo do valor)
	txtDynamicColumnDescription = new TextBox();
	txtDynamicColumnDescription.Name = _strPrefixo + "_" + _strTermoDescricao + "_" + i.ToString(); //ex.: curso_questao_1
	txtDynamicColumnDescription.Value = "=Fields." + _strPrefixo + "_" + _strTermoDescricao + "_" + i.ToString();
	txtDynamicColumnDescription.Size = new SizeU(new Unit(_dblTamX, UnitType.Cm), new Unit(_dblTamY, UnitType.Cm));
	txtDynamicColumnDescription.Style.Color = System.Drawing.Color.Black;
	txtDynamicColumnDescription.Style.Font.Bold = true;
	txtDynamicColumnDescription.Style.Font.Size = new Telerik.Reporting.Drawing.Unit(7, ((Telerik.Reporting.Drawing.UnitType)(Telerik.Reporting.Drawing.UnitType.Point)));
	txtDynamicColumnDescription.Style.TextAlign = Telerik.Reporting.Drawing.HorizontalAlign.Center;
	txtDynamicColumnDescription.Style.VerticalAlign = Telerik.Reporting.Drawing.VerticalAlign.Middle;
	if (i == 1)
	{
	txtDynamicColumnDescription.Location = new PointU(new Unit(_dblPosInicialX, UnitType.Cm), new Unit(_dblPosInicialY, UnitType.Cm));
	}
	else
	{
	double _dblX, _dblY;
	///Posição Inicial + espaçamento horizontal + tamanho do controle
	_dblX = ((_dblPosInicialX + _dblEspassamentoHorizontal) + (_dblTamX * (double.Parse(i.ToString()) - 1)));
	///Mantém-se fixo, não variavél
	_dblY = _dblPosInicialY;
	txtDynamicColumnDescription.Location = new PointU(new Unit(_dblX, UnitType.Cm), new Unit(_dblY, UnitType.Cm));
	}
	#endregion
	#region Adiciona Controles de Descrição no Array
	lstControls.Items.Add(txtDynamicColumnDescription);
	#endregion
	}
	if (!_strTermoValor.Equals(""))
	{
	#region Controle de Valores (Valores)
	txtDynamicColumnValue = new TextBox();
	txtDynamicColumnValue.Name = _strPrefixo + "_" + _strTermoValor + "_" + i.ToString(); //ex.: curso_questao_1
	txtDynamicColumnValue.Value = "=Fields." + _strPrefixo + "_" + _strTermoValor + "_" + i.ToString();
	txtDynamicColumnValue.Size = new SizeU(new Unit(_dblTamX, UnitType.Cm), new Unit(_dblTamY, UnitType.Cm));
	txtDynamicColumnValue.Style.Color = System.Drawing.Color.Blue;
	txtDynamicColumnValue.Style.Font.Bold = true;
	txtDynamicColumnValue.Style.Font.Size = new Telerik.Reporting.Drawing.Unit(7, ((Telerik.Reporting.Drawing.UnitType)(Telerik.Reporting.Drawing.UnitType.Point)));
	txtDynamicColumnValue.Style.TextAlign = Telerik.Reporting.Drawing.HorizontalAlign.Center;
	txtDynamicColumnValue.Style.VerticalAlign = Telerik.Reporting.Drawing.VerticalAlign.Middle;
	if (i == 1)
	{
	double _dblY;
	///Posição Inicial + espaçamento vertical + tamanho do controle
	_dblY = (_dblPosInicialY + _dblEspassamentoVertical + _dblTamY);
	txtDynamicColumnValue.Location = new PointU(new Unit(_dblPosInicialX, UnitType.Cm), new Unit(_dblY, UnitType.Cm));
	}
	else
	{
	double _dblX, _dblY;
	///Posição Inicial + espaçamento horizontal + tamanho do controle
	_dblX = ((_dblPosInicialX + _dblEspassamentoHorizontal) + (_dblTamX * (double.Parse(i.ToString()) - 1)));
	///Posição Inicial + espaçamento vertical + tamanho do controle
	_dblY = (_dblPosInicialY + _dblEspassamentoVertical + _dblTamY);
	txtDynamicColumnValue.Location = new PointU(new Unit(_dblX, UnitType.Cm), new Unit(_dblY, UnitType.Cm));
	}
	#endregion
	#region Adiciona Controles de Valor no Array
	lstControls.Items.Add(txtDynamicColumnValue);
	#endregion
	}
	}
	#endregion
	#region Array com todos os controles
	ReportItemBase[] reportControls = new ReportItemBase[lstControls.Items.Count];
	for (int i = 0; i < lstControls.Items.Count; i++)
	{
	reportControls[i] = lstControls.Items[i];
	}
	#endregion
	return reportControls;
	}
	catch (Exception error)
	{
	///Lança a exeção gerada pelo método e retorna nulo;
	throw new Exception(error.Message.ToString());
	return null;
	}
	}

The problem is that on runtime its don´t render the controls.How can I do it?

If I use this

	Telerik.Reporting.Processing.GroupSection groupb = (Telerik.Reporting.Processing.GroupSection)sender;
	groupb.Items.Add(item);

What data type my function need return, or how can I make a foreach loop whit an Telerik.Reporting.ReportItemBase array.

Thanks

[Steve]

Hi Jose,

We've already answered your inquiry in the support thread you've opened.

All the best,
Steve
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
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[Aleksey]

Hi Steve,

Could you please provide a link to the answer given to Jose. I have similar issue trying to add a text box to the group header in RunTime.

Thanks,
Aleksey

[Stef]

Hi Aleksey,

In general, the report is a template repeated for the data assigned to it. It is not recommended to modify this template once the data processing has started (e.g. in events).

At run-time you can create an instance of the report, create an item and add it to the desired section of the report:

var tb = new Telerik.Reporting.TextBox();

tb.Location = new Telerik.Reporting.Drawing.PointU(new Telerik.Reporting.Drawing.Unit(0, Telerik.Reporting.Drawing.UnitType.Cm), new Telerik.Reporting.Drawing.Unit(0, Telerik.Reporting.Drawing.UnitType.Cm));
tb.Name = "uniqueTextBoxName";
tb.Size = new Telerik.Reporting.Drawing.SizeU(new Telerik.Reporting.Drawing.Unit(5.0, Telerik.Reporting.Drawing.UnitType.Cm), new Telerik.Reporting.Drawing.Unit(0.6, Telerik.Reporting.Drawing.UnitType.Cm));
tb.Style.BorderStyle.Default = Telerik.Reporting.Drawing.BorderType.Solid;

//set the value of the Textbox to an expression for example
tb.Value = "=Fields.MyFieldName";


//create an instance of the report
var report = new MyReport();

//get the group header section by name
var section = report.Items.Find("groupHeaderSection1",true)[0] as Telerik.Reporting.GroupHeaderSection;
section.Items.Add(tb);

//display the report
reportViewer1.ReportSource = new InstanceReportSource { ReportDocument = report };

Before modifying/creating a report definition at run-time, test the structure by using the integrated in Visual Studio Report Designer. Not all sections allow you to use data items for example.


I hope the above information is helpful.

Regards,
Stef
Telerik

 

 

[Aleksey]

Hi Stef,

The information you provided is very helpful. Thanks. It works just fine, but it does work from the calling application.
I try to find a way to add a textbox (B) to the groupheader with location based on the width of another textbox (A) neighboring on the textbox B's left. Simply put I have textbox A with flexible width and I need to place textbox B next to textbox A being tide to its width. So, when textbox A contains longer string it will push textbox B to the right. This way I will not have a huge gap between A and B when string in A is quite short.
Accessing textbox A from calling application I am getting its design width, so I thought I needed to access it from the report itself. 
But I still am getting the same width value as it was designed.

private void groupHeaderSection1_ItemDataBinding(object sender, EventArgs e)
        {
            Telerik.Reporting.Processing.GroupSection section = (sender as Telerik.Reporting.Processing.GroupSection);
            Telerik.Reporting.Processing.TextBox txt = (Telerik.Reporting.Processing.TextBox)Telerik.Reporting.Processing.ElementTreeHelper.GetChildByName(section, "sERIES_TYPEDataTextBox");

            string width = txt.Width.ToString();

            // create textbox
            Telerik.Reporting.TextBox textBox1 = new Telerik.Reporting.TextBox();

            textBox1.CanGrow = true;
            textBox1.Location = new Telerik.Reporting.Drawing.PointU(Telerik.Reporting.Drawing.Unit.Inch(5.7D), Telerik.Reporting.Drawing.Unit.Inch(0));
            textBox1.Name = "textBox6";
            textBox1.Size = new Telerik.Reporting.Drawing.SizeU(Telerik.Reporting.Drawing.Unit.Inch(0.70D), Telerik.Reporting.Drawing.Unit.Inch(0.20D));
            textBox1.StyleName = "Data";
            textBox1.Value = width;

            detail.Items.AddRange(new Telerik.Reporting.ReportItemBase[] { textBox1 });
            
        }

BTW the method "Items" (section.Items.Add(textBox1);) does not exist for the section at the ItemDataBinding event, so I had to place that textbox to the detail section (just for testing).

Thanks,
Aleksey

[Aleksey]

UPDATE:

I resolved my issue by using a single HTMLTextBox and formatting text fonts and colors there:

<span style="color: #f22f34" size="4"><b>{ToUpper(IsNull(Fields.SERIES_TYPE, "Other"))}</b></span>&nbsp;<span style="color: #808080" size="3">{IsNull(Fields.SERIES, "Other") + ShortDescription(Fields.PROD_SHORT_DESC)}</span>

Thanks,
Aleksey