DbfMemoColumn Class |  |
Class for reading / writing Memo Columns. This class returns and writes the block numbers.
Inheritance HierarchyNamespace: XSharp.RDD
Assembly: XSharp.Rdd (in XSharp.Rdd.dll) Version: 2.21
SyntaxThe DbfMemoColumn type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | DbfMemoColumn | Initializes a new instance of the DbfMemoColumn class |
Properties| Name | Description | |
|---|---|---|
 | CanSort | Can the field be sorted? (Inherited from RddFieldInfo.) |
| Caption | Dynamic property for the Caption. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| ColumnName | Dynamic property for the ColumnName. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| DefaultValue | Dynamic property for the DefaultValue. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| Description | Dynamic property for the Description. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| FieldTypeFlags | FieldType as a string (Inherited from RddFieldInfo.) |
| FieldTypeStr | Field type as 1 character string. (Inherited from RddFieldInfo.) |
| Format | Dynamic property for the Format. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| HasProperties | Does the field have properties. (Inherited from RddFieldInfo.) |
| InputMask | Dynamic property for the InputMask. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| IsAutoIncrement | Is it an autoincrement ? (Inherited from RddFieldInfo.) |
| IsBinary | Is it binary ? (Inherited from RddFieldInfo.) |
| IsCompressed | Is it a compressed field (not implemented yet) ? (Inherited from RddFieldInfo.) |
| IsEncrypted | Is it an encryped field (not implemented yet)? (Inherited from RddFieldInfo.) |
| IsMemo | Is it a memo ? (Inherited from RddFieldInfo.) |
| IsNullable | Is it nullable ? (Inherited from RddFieldInfo.) |
| IsStandard | Is it a standard Dbase 3 field (CDLMN) ? (Inherited from RddFieldInfo.) |
| IsUnicode | Is it a unicode text ? (Inherited from RddFieldInfo.) |
| IsUnique | Dynamic property for the IsUnique. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| IsVarLength | Is it a variable length field ? (Inherited from RddFieldInfo.) |
| IsVfp | Is it a VFP extended field ? (Inherited from RddFieldInfo.) |
| PrimaryKey | Dynamic property for the PrimaryKey. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| Properties | Dynamic list of optional properties, such as Caption, Description. (Inherited from RddFieldInfo.) |
| RuleExpression | Dynamic property for the RuleExpression. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
| RuleText | Dynamic property for the RuleText. Read from the VFP properties collection. (Inherited from RddFieldInfo.) |
Methods| Name | Description | |
|---|---|---|
| BlankValue | Return the blank (non null) value of the column. (Inherited from RddFieldInfo.) |
| Clone | Clone a RddFieldInfo object. (Inherited from RddFieldInfo.) |
| CopyValues | Copy values from one object to another. (Inherited from RddFieldInfo.) |
| EmptyValue | Get the default "empty" value, as you would get at EOF (Overrides EmptyValue.) |
| GetValue | Get the value from the buffer (Overrides GetValue(Byte).) |
| HandleNullValue | Handle NULL values. (Inherited from DbfColumn.) |
| InitValue | Initialize the buffer used for appends. Gets called once when a DBF is opened. (Overrides InitValue(Byte).) |
| NewRecord | Update the buffer after appending. For example for AutoIncrement or TimeStamp columns. (Inherited from DbfColumn.) |
| PutValue | Write the value to the buffer (Overrides PutValue(Object, Byte).) |
| SameType | Check if two fields match in type, length and decimals. (Inherited from RddFieldInfo.) |
| ToString | (Inherited from RddFieldInfo.) |
| Validate | Validate combinations of type, length and decimals. (Overrides Validate.) |
Fields| Name | Description | |
|---|---|---|
 | Alias | Alternative name, no length limit. This is the Caption for VFP fields (Inherited from RddFieldInfo.) |
| Decimals | Decimal positions (Inherited from RddFieldInfo.) |
| FieldType | Field Type (Inherited from RddFieldInfo.) |
| Flags | Flags, such as Nullable, AutoIncrement, Binary etc. (Inherited from RddFieldInfo.) |
| Length | Physical length in the table (Inherited from RddFieldInfo.) |
| Name | Name, normally max 10 characters (Inherited from RddFieldInfo.) |
| NextValue | Next key for autoincrement columns. (Inherited from RddFieldInfo.) |
| Offset | Offset in the record buffer for DBF fields. (Inherited from RddFieldInfo.) |
| Ordinal | 1 based Ordinal position in the RDD. (Inherited from RddFieldInfo.) |
| StepValue | Step value for autoincrement columns. (Inherited from RddFieldInfo.) |
See Also