ColumnMetadata Members

Properties

Contract: IColumnMetadata interface in PocoDataSet.IData library
Implementation: ColumnMetadata class in PocoDataSet.Data library

• ColumnName
  Gets or sets the logical column name used in schema definitions, row field dictionaries, and serialization.
• DataType
  Gets or sets the column data type name. Data types are represented as strings (for example, DataTypeNames.INT32, DataTypeNames.STRING).
• Description
  Gets or sets an optional human-readable description. This is commonly used for tooltips, help text, or documentation generation.
• DisplayName
  Gets or sets an optional caption used for UI labels. When present, it can be displayed instead of ColumnName.
• DisplayOrder
  Gets or sets an optional order hint for UI rendering. Smaller values are typically shown first.
• IsForeignKey
  Gets or sets a flag indicating whether the column participates in a foreign key relationship. This flag is commonly used alongside ReferencedTableName and ReferencedColumnName.
• IsNullable
  Gets or sets a flag indicating whether the column can contain null values. This is used by validation and can influence UI (required fields).
• IsPrimaryKey
  Gets or sets a flag indicating whether the column is part of the primary key. Primary key columns are used for row identity, lookups, and merge operations.
• MaxLength
  Gets or sets an optional maximum length for variable-length data (for example, strings). This can be used for validation and UI input constraints.
• Precision
  Gets or sets an optional numeric precision. This is typically used for decimal columns to describe the total number of digits.
• ReferencedColumnName
  Gets or sets the referenced (parent) column name for a foreign key column. This is metadata only, commonly used by UI or import/export layers.
• ReferencedTableName
  Gets or sets the referenced (parent) table name for a foreign key column. This is metadata only, commonly used by UI layers to build lookups.
• Scale
  Gets or sets an optional numeric scale. This is typically used for decimal columns to describe the number of digits after the decimal point.

Methods

Contract: IColumnMetadata interface in PocoDataSet.IData library
Implementation: ColumnMetadata class in PocoDataSet.Data library

• Clone Creates a copy of the column metadata. This is useful when you want to duplicate a schema definition and then adjust some fields without mutating the original instance.

 

Table of Content POCO DataSet API References POCO DataSet Types

 

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Business Process Programming in .Net
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