/// <summary>
/// Creates a new row update and adds it to the update cache
/// </summary>
/// <exception cref="InvalidOperationException">If inserting into cache fails</exception>
/// <returns>The internal ID of the newly created row</returns>
public EditCreateRowResult CreateRow()
{
ThrowIfNotInitialized();
// Create a new row ID (atomically, since this could be accesses concurrently)
long newRowId = NextRowId++;
// Create a new row create update and add to the update cache
RowCreate newRow = new RowCreate(newRowId, associatedResultSet, objectMetadata);
if (!EditCache.TryAdd(newRowId, newRow))
{
// Revert the next row ID
NextRowId--;
throw new InvalidOperationException(SR.EditDataFailedAddRow);
}
EditCreateRowResult output = new EditCreateRowResult
{
NewRowId = newRow.RowId,
DefaultValues = newRow.DefaultValues
};
return(output);
}
/// <summary>
/// Creates a new row update and adds it to the update cache
/// </summary>
/// <exception cref="InvalidOperationException">If inserting into cache fails</exception>
/// <returns>The internal ID of the newly created row</returns>
public EditCreateRowResult CreateRow()
{
ThrowIfNotInitialized();
// Create a new row ID (atomically, since this could be accesses concurrently)
long newRowId = NextRowId++;
// Create a new row create update and add to the update cache
RowCreate newRow = new RowCreate(newRowId, associatedResultSet, objectMetadata);
if (!EditCache.TryAdd(newRowId, newRow))
{
// Revert the next row ID
NextRowId--;
throw new InvalidOperationException(SR.EditDataFailedAddRow);
}
// Set the default values of the row if we know them
string[] defaultValues = new string[objectMetadata.Columns.Length];
for (int i = 0; i < objectMetadata.Columns.Length; i++)
{
EditColumnMetadata col = objectMetadata.Columns[i];
// If the column is calculated, return the calculated placeholder as the display value
if (col.IsCalculated.HasTrue())
{
defaultValues[i] = SR.EditDataComputedColumnPlaceholder;
}
else
{
if (col.DefaultValue != null)
{
newRow.SetCell(i, col.DefaultValue);
}
defaultValues[i] = col.DefaultValue;
}
}
EditCreateRowResult output = new EditCreateRowResult
{
NewRowId = newRowId,
DefaultValues = defaultValues
};
return(output);
}
/// <summary>
/// Creates a delete row update and adds it to the update cache
/// </summary>
/// <exception cref="InvalidOperationException">
/// If row requested to delete already has a pending change in the cache
/// </exception>
/// <param name="rowId">The internal ID of the row to delete</param>
public void DeleteRow(long rowId)
{
ThrowIfNotInitialized();
// Sanity check the row ID
if (rowId >= NextRowId || rowId < 0)
{
throw new ArgumentOutOfRangeException(nameof(rowId), SR.EditDataRowOutOfRange);
}
// Create a new row delete update and add to cache
RowDelete deleteRow = new RowDelete(rowId, associatedResultSet, objectMetadata);
if (!EditCache.TryAdd(rowId, deleteRow))
{
throw new InvalidOperationException(SR.EditDataUpdatePending);
}
}