protected virtual void AddAutoBindColumns(PDFDataContext context)
{
if (string.IsNullOrEmpty(this.DataSourceID))
{
throw new InvalidOperationException("Can only auto bind the schema when the DataGrid has an explicit DataSourceID and the referencing source supports Schema derriving");
}
IPDFDataSource found = base.FindDocumentComponentById(this.DataSourceID) as IPDFDataSource;
if (null == found || found.SupportsDataSchema == false)
{
throw new InvalidOperationException("Can only auto bind the schema when the DataGrid has an explicit DataSourceID and the referencing source supports Schema derriving");
}
PDFDataSchema schema = found.GetDataSchema(this.SelectPath, context);
if (null == schema || schema.Items == null || schema.Items.Count == 0)
{
context.TraceLog.Add(TraceLevel.Warning, "PDFDataGrid", string.Format("Cannot autobind the columns as no schema items were returned for the path '{0}'", this.SelectPath));
}
else
{
foreach (PDFDataItem item in schema.Items)
{
if (ShouldIncludeAutoBoundItem(item))
{
DataGridColumn col = GetDataColumnForType(item.DataType);
if (null != col)
{
col.HeaderText = string.IsNullOrEmpty(item.Title) ? item.Name : item.Title;
col.SetDataSourceBindingItem(item, context);
if (context.TraceLog.ShouldLog(TraceLevel.Debug))
{
context.TraceLog.Add(TraceLevel.Debug, "PDFDataGrid", string.Format("The data column was automatically created for the schdema item '{0}' in data grid '{1}'", item, this));
}
this.Columns.Add(col);
}
}
}
}
}
/// <summary>
/// Returns the PDFDataScema associated with this source.
/// </summary>
/// <param name="path"></param>
/// <param name="context"></param>
/// <returns>The data schema associated with the source</returns>
/// <exception cref="System.NotSupportedException" >Thrown if this data source does not support schema extraction</exception>
public override PDFDataSchema GetDataSchema(string path, PDFDataContext context)
{
System.Data.DataSet ds;
if (this.HasData(out ds))
{
PDFDataSchema schema = DataSetSchemaGenerator.CreateSchemaFromSet(ds, context);
if (!string.IsNullOrEmpty(path))
{
if (path == schema.RootPath)
{
return(schema);
}
else if (!path.StartsWith(schema.RootPath))
{
return(null);
}
else
{
foreach (var one in schema.Items)
{
if (one.FullPath == path)
{
PDFDataSchema child = new PDFDataSchema(one.FullPath, one.Children);
return(child);
}
}
return(null);
}
}
else
{
return(schema);
}
}
else
{
return(base.GetDataSchema(path, context));
}
}
private static PDFDataSchema DoPopulateDataSchema(DataSet dataset, PDFDataContext context)
{
string dsName = dataset.DataSetName;
string dsXmlName = System.Xml.XmlConvert.EncodeLocalName(dsName);
System.Data.DataTable[] tables = GetTopLevelTables(dataset);
List <PDFDataItem> topItems = new List <PDFDataItem>();
foreach (System.Data.DataTable table in tables)
{
string tableName = table.TableName;
string tableXmlName = System.Xml.XmlConvert.EncodeLocalName(tableName);
string path = PDFDataSchema.CombineElementNames(dsXmlName, tableXmlName);
PDFDataItemCollection columns = new PDFDataItemCollection(GetTableColumnSchema(path, table));
PDFDataItem topTable = new PDFDataItem(path, tableName, tableName, columns);
topItems.Add(topTable);
//TODO: Load child schemas
}
PDFDataSchema schema = new PDFDataSchema(dsName, new PDFDataItemCollection(topItems));
return(schema);
}
/// <summary>
/// Extracts a single schema data item for the provided data column
/// </summary>
/// <param name="path"></param>
/// <param name="col"></param>
/// <returns></returns>
private static PDFDataItem GetColumnDataItem(string path, System.Data.DataColumn col)
{
string name = col.ColumnName;
string relativePath = System.Xml.XmlConvert.EncodeLocalName(name);
string title = string.IsNullOrEmpty(col.Caption) ? name : col.Caption;
System.Xml.XmlNodeType nodetype;
if (col.ColumnMapping == System.Data.MappingType.Hidden)
{
return(null);
}
else if (col.ColumnMapping == System.Data.MappingType.Attribute)
{
relativePath = "@" + relativePath;
nodetype = System.Xml.XmlNodeType.Attribute;
}
else if (col.ColumnMapping == System.Data.MappingType.SimpleContent)
{
relativePath = "text()";
nodetype = System.Xml.XmlNodeType.Text;
}
else if (col.ColumnMapping == System.Data.MappingType.Element)
{
nodetype = System.Xml.XmlNodeType.Element;
relativePath += "/text()";
}
else
{
throw new ArgumentOutOfRangeException("col.ColumnMapping");
}
string fullpath = PDFDataSchema.CombineElementNames(path, relativePath);
PDFDataItem item = new PDFDataItem(fullpath, relativePath, name, title, nodetype, GetDataTypeFromSystemType(col));
return(item);
}
protected virtual void AddAutoBindFields(object data, IPDFDataSource source, PDFDataContext context)
{
if (string.IsNullOrEmpty(this.DataSourceID))
{
throw new InvalidOperationException("Can only auto bind the schema when the With has an explicit DataSourceID and the referencing source supports Schema derriving");
}
IPDFDataSource found = base.FindDocumentComponentById(this.DataSourceID) as IPDFDataSource;
if (null == found || found.SupportsDataSchema == false)
{
throw new InvalidOperationException("Can only auto bind the schema when the With has an explicit DataSourceID and the referencing source supports Schema derriving");
}
PDFDataSchema schema = found.GetDataSchema(this.SelectPath, context);
if (null == schema || schema.Items == null || schema.Items.Count == 0)
{
context.TraceLog.Add(TraceLevel.Warning, "PDFWithFieldSet", string.Format("Cannot autobind the columns as no schema items were returned for the path '{0}'", this.SelectPath));
}
else
{
if (context.TraceLog.ShouldLog(TraceLevel.Debug))
{
context.TraceLog.Add(TraceLevel.Debug, "DataGrid", "Initializing and loading root component before binding");
}
PDFTraceLog log = context.TraceLog;
PDFInitContext init = new PDFInitContext(context.Items, log, context.PerformanceMonitor, this.Document);
PDFLoadContext load = new PDFLoadContext(context.Items, log, context.PerformanceMonitor, this.Document);
foreach (PDFDataItem item in schema.Items)
{
if (ShouldIncludeAutoBoundItem(item))
{
WithBoundField field = GetFieldForType(item.DataType);
if (null != field)
{
field.StyleClass = this.FieldClass;
field.FieldLabel = string.IsNullOrEmpty(item.Title) ? item.Name : item.Title;
field.LabelClass = this.LabelClass;
field.ValueClass = this.ValueClass;
field.LabelPostFix = this.LabelPostFix;
field.LayoutType = this.AutoLayoutType;
field.DataType = item.DataType;
field.HideIfEmpty = this.HideEmptyFields;
field.SetDataSourceBindingItem(item, context);
if (context.TraceLog.ShouldLog(TraceLevel.Debug))
{
context.TraceLog.Add(TraceLevel.Debug, "PDFWithFieldSet", string.Format("The data field was automatically created for the schdema item '{0}' in set '{1}'", item, this));
}
this.Fields.Add(field);
field.Init(init);
field.Load(load);
this.BindingActions.Add(new BindingAction(data, source, field));
}
}
}
//added all the items
}
}
