public ZipBinding(DataViewSchema[] sources)
{
Contracts.AssertNonEmpty(sources);
_sources = sources;
_cumulativeColCounts = new int[_sources.Length + 1];
_cumulativeColCounts[0] = 0;
for (int i = 0; i < sources.Length; i++)
{
var schema = sources[i];
_cumulativeColCounts[i + 1] = _cumulativeColCounts[i] + schema.Count;
}
var schemaBuilder = new DataViewSchema.Builder();
foreach (var sourceSchema in sources)
{
schemaBuilder.AddColumns(sourceSchema);
}
OutputSchema = schemaBuilder.ToSchema();
}