> For the complete documentation index, see [llms.txt](https://docs.dikesoft.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dikesoft.com/reference/classes/filtering.md).
# Filtering
## Generics
`` represents the object's shape coming from the data source.
`` represents the column data type: `string`, `number`, `Date`, or `boolean`.
`` represents the filter values.
`` represents the filter selection model: `DikeSelectionModel`.
## DikeFilterCondition\
```typescript
abstract class DikeFilterCondition {
protected indexConditions: FilterCondition;
constructor();
get conditions(): Condition[];
assign(filterConditions: DikeFilterCondition): this;
addCondition(condition: Condition): this;
removeCondition(name: string): Condition;
getCondition(name: string): Condition;
}
```
## DikeSelectionFilterCondition\
```typescript
abstract class DikeSelectionFilterCondition extends DikeFilterCondition {
protected dikeFilterOptions: M[];
constructor();
abstract set options(options: M[]);
abstract get options(): M[];
assign(value: DikeSelectionFilterCondition): this;
addCondition(condition: Condition): this;
protected isValidCondition(name: string): boolean;
}
```
## DikeBinarySelectionFilterCondition\
```typescript
abstract class DikeBinarySelectionFilterCondition extends DikeSelectionFilterCondition {
private MAX_OPTIONS: number = 2;
constructor();
set options(options: M[]);
get options(): M[];
assign(value: DikeBinarySelectionFilterCondition): this;
}
```
## CustomBinaryFilterCondition\
```typescript
class CustomBinaryFilterCondition extends DikeBinarySelectionFilterCondition {
constructor();
addExistingCondition(name: string): this;
}
```
## DikeMultipleSelectionFilterCondition\
```typescript
abstract class DikeMultipleSelectionFilterCondition extends DikeSelectionFilterCondition {
constructor();
set options(options: M[]);
get options(): M[];
assign(value: DikeSelectionFilterCondition): this;
}
```
## CustomTextCaseFilterCondition\
```typescript
class CustomTextCaseFilterCondition extends DikeFilterCondition {
constructor();
addExistingCondition(name: string): this;
protected isValidCondition(name: string): boolean;
}
```
## CustomRowTextCaseFilterCondition\
```typescript
class CustomRowTextCaseFilterCondition extends CustomTextCaseFilterCondition {
constructor();
addCondition(condition: Condition): this;
}
```
## CustomNumericFilterCondition\
```typescript
class CustomNumericFilterCondition extends DikeFilterCondition {
constructor();
addExistingCondition(name: string): this;
protected isValidCondition(name: string): boolean;
}
```
## CustomRowNumericFilterCondition\
```typescript
class CustomRowNumericFilterCondition extends CustomNumericFilterCondition {
constructor();
addCondition(condition: Condition): this;
protected isValidCondition(name: string): boolean;
}
```
## CustomDateFilterCondition\
```typescript
class CustomDateFilterCondition extends DikeFilterCondition {
constructor();
addExistingCondition(name: string): this;
protected isValidCondition(name: string): boolean;
}
```
## CustomRowDateFilterCondition\
```typescript
class CustomRowDateFilterCondition extends CustomDateFilterCondition {
constructor();
addCondition(condition: Condition): this;
protected isValidCondition(name: string): boolean;
}
```
## CustomMultipleTextFilterCondition\
```typescript
class CustomMultipleTextFilterCondition extends DikeMultipleSelectionFilterCondition {
constructor();
addExistingCondition(name: string): this
}
```
## CustomMultipleNumericFilterCondition\
```typescript
class CustomMultipleNumericFilterCondition extends DikeMultipleSelectionFilterCondition {
constructor();
addExistingCondition(name: string): this;
}
```