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dotnet-api
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C1.DataEngine Assembly
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C1.DataEngine
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Classes
- BaseTable
- Column
- ColumnCondition
- ColumnCopy
- ColumnDerived
- ColumnOp
- ColumnOpCustom
- ColumnOpCustomBase
- ColumnOpCustomGroup
- Columns
- CondValue
- CondValues
- Condition
- Connector
- Converter
- DbConnector
- JoinColumns
- JoinQuery
- LicenseManager
- ObjectConnector<T>
- Op
- Query
- Table
- UnsupportedTypeException
- Values
- Workspace
- Enums
- Interfaces
- Delegates
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Classes
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C1.DataEngine
- C1.DataEngine.Api Assembly
- C1.DataEngine.Collection Assembly
- C1.PivotEngine Assembly
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C1.DataEngine Assembly
C1.DataEngine.Connector.AddNewColumns
AddNewColumns Method
AddNewColumns(string, long)
Add new columns to an existing DataEngine table.
Declaration
public abstract long AddNewColumns(string tableName, long count = 0)Parameters
| Type | Name | Description |
|---|---|---|
| string | tableName | The name of the DataEngine table. |
| long | count | Optional number of rows to import. If count is 0 (default), import all rows. |
Returns
| Type | Description |
|---|---|
| long |
Remarks
This method throws an exception if the specified columns already exist.
AddNewColumns(Workspace, IDataReader, string, long)
Add new columns to an existing DataEngine table.
Declaration
public static long AddNewColumns(Workspace workspace, IDataReader reader, string tableName, long count = 0)Parameters
| Type | Name | Description |
|---|---|---|
| Workspace | workspace | Workspace containing the DataEngine table. |
| IDataReader | reader | Reader providing the data for the new columns. |
| string | tableName | The name of the DataEngine table. |
| long | count | Optional number of rows to import. If count is 0 (default), import all rows. |
Returns
| Type | Description |
|---|---|
| long |
Remarks
This method throws an exception if the specified columns already exist.