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");
}
LabelDataset.LabelDetailTableRow row = (LabelDataset.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);
}
//Interface
public Label(LabelTemplate labelTemplate, LabelMaker labelMaker)
{
//Constructor
try {
//Format the label template using the specified label maker
this.mLabelFormat = labelMaker.FormatLabelTemplate(labelTemplate.Template);
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while creating new Label instance.", ex); }
}
public bool Add(LabelTemplate template)
{
//Add a new label template
bool ret = false;
try {
ret = template.Create();
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while adding new label.", ex); }
return(ret);
}
public bool Remove(LabelTemplate template)
{
//Remove the specified label template
bool ret = false;
try {
ret = template.Delete();
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while removing existing label.", ex); }
return(ret);
}
public LabelTemplate Item()
{
//Return a new blank label template object
LabelTemplate template = null;
try {
template = NewLabelTemplate();
template.TemplateChanged += new EventHandler(OnTemplateChanged);
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while getting existing label.", ex); }
return(template);
}
public dlgLabelTemplate(LabelTemplate template)
{
//Constructor
try {
//Required designer support
InitializeComponent();
//Set command button and menu identities (used for onclick handler)
this.btnOK.Text = CMD_OK;
this.btnCancel.Text = CMD_CANCEL;
//Initialize members
this.mLabelTemplate = template;
this.Text = (this.mLabelTemplate.LabelType.Length > 0) ? "Label Template (" + this.mLabelTemplate.LabelType + ")" : "Label Template (New)";
}
catch (Exception ex) { throw new ApplicationException("Unexpected error while creating new Label Template dialog instance.", ex); }
}
