private bool IsSamplesWebResource(RVDataSourceItem dataSourceItem)
{
if (dataSourceItem is RVExcelDataSourceItem excelItem)
{
var wrItem = excelItem.ResourceItem as RVWebResourceDataSourceItem;
return(wrItem != null && wrItem.Url.EndsWith("Samples.xlsx"));
}
return(false);
}
private RVDataSourceItem CreateLocalSamplesDataSourceItem(RVDataSourceItem dataSourceItem)
{
if (dataSourceItem is RVExcelDataSourceItem excelItem)
{
var localItem = new RVLocalFileDataSourceItem();
localItem.Uri = "local:/Samples.xlsx";
excelItem.ResourceItem = localItem;
return(excelItem);
}
return(dataSourceItem);
}
private RVDataSourceItem ChangeDataSourceItem(RVDataSourceItem dataSourceItem)
{
var sqlServerDS = new RVSqlServerDataSource();
sqlServerDS.Host = "0.0.0.0"; // Provide host
sqlServerDS.Database = "Database"; // Provide database
var sqlServerDsi = new RVSqlServerDataSourceItem(sqlServerDS);
sqlServerDsi.Database = "Database"; // Provide database
sqlServerDsi.Table = "Marketing"; // Provide table
return(sqlServerDsi);
}
private RVDataSourceItem ChangeDataSourceItem(RVDataSourceItem dataSourceItem)
{
var excelItem = dataSourceItem as RVExcelDataSourceItem;
var wrItem = excelItem?.ResourceItem as RVWebResourceDataSourceItem;
if (wrItem != null && wrItem.Url.EndsWith("Samples.xlsx"))
{
var localItem = new RVLocalFileDataSourceItem();
localItem.Uri = "local:/Marketing.xlsx";
excelItem.ResourceItem = localItem;
return(excelItem);
}
else
{
return(null);
}
}
public Task <RVDataSourceItem> ChangeDashboardFilterDataSourceItemAsync(RVDashboardFilter filter, RVDataSourceItem dataSourceItem)
{
if (IsSamplesWebResource(dataSourceItem))
{
return(Task.FromResult(CreateLocalSamplesDataSourceItem(dataSourceItem)));
}
else
{
return(Task.FromResult <RVDataSourceItem>(null));
}
}
public Task <RVDataSourceItem> ChangeVisualizationDataSourceItemAsync(RVVisualization visualization, RVDataSourceItem dataSourceItem)
{
if (IsSamplesWebResource(dataSourceItem))
{
return(Task.FromResult(CreateLocalSamplesDataSourceItem(dataSourceItem)));
}
else
{
return(Task.FromResult <RVDataSourceItem>(null));
}
}
public Task <RVDataSourceItem> ChangeVisualizationDataSourceItemAsync(string userId, string dashboardId, RVVisualization visualization, RVDataSourceItem dataSourceItem)
{
return(Task.FromResult <RVDataSourceItem>(ChangeDataSourceItem(dataSourceItem)));
}
public Task <RVDataSourceItem> ChangeDashboardFilterDataSourceItemAsync(string userId, string dashboardId, RVDashboardFilter filter, RVDataSourceItem dataSourceItem)
{
return(Task.FromResult <RVDataSourceItem>(ChangeDataSourceItem(dataSourceItem)));
}
private RVDataSourceItem ChangeDataSourceItem(RVDataSourceItem dataSourceItem)
{
return(new RVInMemoryDataSourceItem("Marketing"));
}
