public LabelTemplate Item(string labelType, string printerType)
{
//Return an existing template object from the label templates collection
LabelTemplate label = null;
try {
//Merge from collection (dataset)
if (labelType != "" && printerType != "")
{
DataRow[] rows = this.mLabels.LabelDetailTable.Select("LABEL_TYPE='" + labelType + "' AND PrinterType='" + printerType + "'");
if (rows.Length == 0)
{
throw new Exception("Label template for label type " + labelType + ", printer type " + printerType + " does not exist in this store!\n");
}
LabelDS.LabelDetailTableRow row = (LabelDS.LabelDetailTableRow)rows[0];
label = NewLabelTemplate(row); //, this.mMediator);
label.TemplateChanged += new EventHandler(OnTemplateChanged);
}
else
{
label = Item();
}
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while getting existing label.", ex); }
return(label);
}
public TerminalLabelTemplate(LabelDS.LabelDetailTableRow labelTemplate, Mediator mediator) : base(labelTemplate)
{
//Constructor
try {
this.mMediator = mediator;
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while creating new Terminal Label Template instance.", ex); }
}
/// <summary>Constructor: creates a label template initialized from parameter labelTemplate.</summary>
public LabelTemplate(LabelDS.LabelDetailTableRow labelTemplate)
{
//Constructor
try {
if (labelTemplate != null)
{
this.mLabelType = labelTemplate.LABEL_TYPE;
this.mPrinterType = !labelTemplate.IsPrinterTypeNull() ? labelTemplate.PrinterType : "";
this.mLabelString = !labelTemplate.IsLABEL_STRINGNull() ? labelTemplate.LABEL_STRING : "";
}
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while creating new Label Template instance.", ex); }
}
/// <summary>Returns the label template as an xml object.</summary>
public DataSet ToDataSet()
{
//Return a dataset containing values for this object
LabelDS ds = null;
try {
ds = new LabelDS();
LabelDS.LabelDetailTableRow labelTemplate = ds.LabelDetailTable.NewLabelDetailTableRow();
labelTemplate.LABEL_TYPE = this.mLabelType;
labelTemplate.PrinterType = this.mPrinterType;
labelTemplate.LABEL_STRING = this.mLabelString;
ds.LabelDetailTable.AddLabelDetailTableRow(labelTemplate);
}
catch (Exception) { }
return(ds);
}
public override LabelTemplate NewLabelTemplate(LabelDS.LabelDetailTableRow row)
{
return(new DirectoryLabelTemplate(row));
}
//Members
//Interface
public FileLabelTemplate(LabelDS.LabelDetailTableRow labelTemplate) : base(labelTemplate)
{
}
public override LabelTemplate NewLabelTemplate(LabelDS.LabelDetailTableRow row)
{
return(new TerminalLabelTemplate(row, this.mMediator));
}
public abstract LabelTemplate NewLabelTemplate(LabelDS.LabelDetailTableRow row);
//Members
//Interface
public DirectoryLabelTemplate(LabelDS.LabelDetailTableRow labelTemplate) : base(labelTemplate)
{
}
