/// <include file='doc\BaseDataListDesigner.uex' path='docs/doc[@for="BaseDataListDesigner.GetDesignTimeDataSource1"]/*' />
/// <devdoc>
/// <para>
/// Gets sample data matching the schema of the selected data source.
/// </para>
/// </devdoc>
protected IEnumerable GetDesignTimeDataSource(IEnumerable selectedDataSource, int minimumRows, out bool dummyDataSource)
{
DataTable dataTable = designTimeDataTable;
dummyDataSource = false;
// use the datatable corresponding to the selected datasource if possible
if (dataTable == null)
{
if (selectedDataSource != null)
{
designTimeDataTable = DesignTimeData.CreateSampleDataTable(selectedDataSource);
dataTable = designTimeDataTable;
}
if (dataTable == null)
{
// fallback on a dummy datasource if we can't create a sample datatable
if (dummyDataTable == null)
{
dummyDataTable = DesignTimeData.CreateDummyDataTable();
}
dataTable = dummyDataTable;
dummyDataSource = true;
}
}
IEnumerable liveDataSource = DesignTimeData.GetDesignTimeDataSource(dataTable, minimumRows);
return(liveDataSource);
}
private IEnumerable GetDesignTimeDataSource(int minimumRows)
{
IEnumerable selectedDataSource = ((IDataSourceProvider)this).GetResolvedSelectedDataSource();
DataTable dataTable = _designTimeDataTable;
// Use the data table corresponding to the selected data source if possible.
if (dataTable == null)
{
if (selectedDataSource != null)
{
_designTimeDataTable = DesignTimeData.CreateSampleDataTable(selectedDataSource);
dataTable = _designTimeDataTable;
}
if (dataTable == null)
{
// Fall back on a dummy data source if we can't create a sample data table.
if (_dummyDataTable == null)
{
_dummyDataTable = DesignTimeData.CreateDummyDataTable();
}
dataTable = _dummyDataTable;
}
}
IEnumerable liveDataSource = DesignTimeData.GetDesignTimeDataSource(dataTable, minimumRows);
return(liveDataSource);
}
public override IEnumerable GetDesignTimeData(int minimumRows, out bool isSampleData)
{
isSampleData = false;
if (this.SelectedColumns != null)
{
DataTable table = new DataTable();
foreach (string columnName in this.SelectedColumns)
{
esColumnMetadata col = this.esColumnCollection.FindByPropertyName(columnName);
if (!col.IsConcurrency)
{
DataColumn dc = table.Columns.Add(col.PropertyName, col.Type);
if (col.IsInPrimaryKey)
{
dc.Unique = true;
}
}
}
if (table != null)
{
isSampleData = true;
return(DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(new DataView(table), true), minimumRows));
}
return(base.GetDesignTimeData(minimumRows, out isSampleData));
}
else
{
return(null);
}
}
private IEnumerable GetDesignTimeDataSource(int minimumRows)
{
IEnumerable selectedDataSource = ((IDataSourceProvider)this).GetResolvedSelectedDataSource();
DataTable dtTable = new DataTable();
if (dtTable == null)
{
if (selectedDataSource != null)
{
dtTable = DesignTimeData.CreateSampleDataTable(selectedDataSource);
}
if (dtTable == null)
{
if (dummyTable == null)
{
dummyTable = DesignTimeData.CreateDummyDataTable();
}
dtTable = dummyTable;
}
}
IEnumerable realDataSource = DesignTimeData.GetDesignTimeDataSource(dtTable, minimumRows);
return(realDataSource);
}
public override IEnumerable GetDesignTimeData(int minimumRows, out bool isSampleData)
{
DataTable table = this._owner.LoadSchema();
if (table != null)
{
isSampleData = true;
return(DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(new DataView(table), true), minimumRows));
}
return(base.GetDesignTimeData(minimumRows, out isSampleData));
}
public override IEnumerable GetDesignTimeData(int minimumRows, out bool isSampleData)
{
DataTable schemaTable = _helper.LoadSchema();
if (schemaTable != null)
{
isSampleData = true;
return(DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(new DataView(schemaTable), true), minimumRows));
}
// Couldn't find design-time schema, use base implementation
return(base.GetDesignTimeData(minimumRows, out isSampleData));
}
protected virtual IEnumerable GetDesignTimeDataSource()
{
bool flag;
IEnumerable designTimeData = null;
DesignerDataSourceView designerView = this.DesignerView;
if (designerView != null)
{
try
{
designTimeData = designerView.GetDesignTimeData(this.SampleRowCount, out flag);
}
catch (Exception exception)
{
if (base.Component.Site != null)
{
IComponentDesignerDebugService service = (IComponentDesignerDebugService)base.Component.Site.GetService(typeof(IComponentDesignerDebugService));
if (service != null)
{
service.Fail(System.Design.SR.GetString("DataSource_DebugService_FailedCall", new object[] { "DesignerDataSourceView.GetDesignTimeData", exception.Message }));
}
}
}
}
else
{
IEnumerable resolvedSelectedDataSource = ((IDataSourceProvider)this).GetResolvedSelectedDataSource();
if (resolvedSelectedDataSource != null)
{
designTimeData = DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(resolvedSelectedDataSource), this.SampleRowCount);
flag = true;
}
}
if (designTimeData != null)
{
ICollection is2 = designTimeData as ICollection;
if ((is2 == null) || (is2.Count > 0))
{
return(designTimeData);
}
}
flag = true;
return(this.GetSampleDataSource());
}
public override IEnumerable GetDesignTimeData(int minimumRows, out bool isSampleData)
{
isSampleData = true;
DataTable[] tableArray = this._owner.LoadSchema();
if ((tableArray != null) && (tableArray.Length > 0))
{
if (base.Name.Length == 0)
{
return(DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(new DataView(tableArray[0]), true), minimumRows));
}
foreach (DataTable table in tableArray)
{
if (string.Equals(table.TableName, base.Name, StringComparison.OrdinalIgnoreCase))
{
return(DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(new DataView(table), true), minimumRows));
}
}
}
return(base.GetDesignTimeData(minimumRows, out isSampleData));
}
protected IEnumerable GetDesignTimeDataSource(IEnumerable selectedDataSource, int minimumRows)
{
DataTable designTimeDataTable = this.designTimeDataTable;
if (designTimeDataTable == null)
{
if (selectedDataSource != null)
{
this.designTimeDataTable = DesignTimeData.CreateSampleDataTable(selectedDataSource);
designTimeDataTable = this.designTimeDataTable;
}
if (designTimeDataTable == null)
{
if (this.dummyDataTable == null)
{
this.dummyDataTable = DesignTimeData.CreateDummyDataTable();
}
designTimeDataTable = this.dummyDataTable;
}
}
return(DesignTimeData.GetDesignTimeDataSource(designTimeDataTable, minimumRows));
}