# IPCB_RoutingViaStyleRule interface

A routing via style rule (`TRuleKind.eRule_RoutingViaStyle`) that specifies the vias to be used during routing.

```csharp
public interface IPCB_RoutingViaStyleRule : IPCB_Rule
```

**Namespace:** PCB · **Assembly:** Altium.SDK.Interfaces

**Inherits:** [IPCB_Primitive](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md) → [IPCB_Rule](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md)

## Remarks

Vias can be through-hole, blind (from a surface layer to an inner layer) or buried (between two inner layers).

The rule applies to vias, except back-drill vias. [`ActualCheck`](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#actualcheck) reports a violation for a via whose diameter ([`IPCB_Via.Size`](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Via.md#size)) is outside the range from [`MinWidth`](#minwidth) to [`MaxWidth`](#maxwidth), or whose hole size ([`IPCB_Via.HoleSize`](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Via.md#holesize)) is outside the range from [`MinHoleWidth`](#minholewidth) to [`MaxHoleWidth`](#maxholewidth); values equal to a limit are allowed. The preferred values are not limits: fanout uses [`PreferedWidth`](#preferedwidth) and [`PreferedHoleWidth`](#preferedholewidth) for the vias it adds, and the via stitching and via shielding options start from them.

A rule can instead check vias against a list of via templates, a setting that this interface does not expose. Such a rule accepts a via that has the hole size and the layer diameters of one of its templates, and does not use the minimum and maximum values. When its template list is empty, it accepts any via.

## Properties

| Property | Type | Access | Description |
| --- | --- | --- | --- |
| [MaxHoleWidth](#maxholewidth) | `int` | get; set | The largest via hole size that the rule allows, in internal units (10,000 per mil). |
| [MaxWidth](#maxwidth) | `int` | get; set | The largest via diameter that the rule allows, in internal units (10,000 per mil). |
| [MinHoleWidth](#minholewidth) | `int` | get; set | The smallest via hole size that the rule allows, in internal units (10,000 per mil). |
| [MinWidth](#minwidth) | `int` | get; set | The smallest via diameter that the rule allows, in internal units (10,000 per mil). |
| [PreferedHoleWidth](#preferedholewidth) | `int` | get; set | The preferred via hole size, in internal units (10,000 per mil). |
| [PreferedWidth](#preferedwidth) | `int` | get; set | The preferred via diameter, in internal units (10,000 per mil). |
| [ViaStyle](#viastyle) | [TRouteVia](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/TRouteVia.md) | get; set |  |

### MaxHoleWidth

The largest via hole size that the rule allows, in internal units (10,000 per mil).

```csharp
int GetState_MaxHoleWidth();
void SetState_MaxHoleWidth(int argValue);
```

**Type:** `int` · **Access:** read/write

A new rule has 28 mil.

### MaxWidth

The largest via diameter that the rule allows, in internal units (10,000 per mil).

```csharp
int GetState_MaxWidth();
void SetState_MaxWidth(int argValue);
```

**Type:** `int` · **Access:** read/write

A new rule has 50 mil.

### MinHoleWidth

The smallest via hole size that the rule allows, in internal units (10,000 per mil).

```csharp
int GetState_MinHoleWidth();
void SetState_MinHoleWidth(int argValue);
```

**Type:** `int` · **Access:** read/write

A new rule has 28 mil.

### MinWidth

The smallest via diameter that the rule allows, in internal units (10,000 per mil).

```csharp
int GetState_MinWidth();
void SetState_MinWidth(int argValue);
```

**Type:** `int` · **Access:** read/write

A new rule has 50 mil.

### PreferedHoleWidth

The preferred via hole size, in internal units (10,000 per mil).

```csharp
int GetState_PreferedHoleWidth();
void SetState_PreferedHoleWidth(int argValue);
```

**Type:** `int` · **Access:** read/write

A new rule has 28 mil. [`DataSummaryString`](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#datasummarystring) shows the value.

### PreferedWidth

The preferred via diameter, in internal units (10,000 per mil).

```csharp
int GetState_PreferedWidth();
void SetState_PreferedWidth(int argValue);
```

**Type:** `int` · **Access:** read/write

A new rule has 50 mil. [`DataSummaryString`](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#datasummarystring) shows the value.

### ViaStyle

*No description yet.*

```csharp
TRouteVia GetState_ViaStyle();
void SetState_ViaStyle(TRouteVia argValue);
```

**Type:** [TRouteVia](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/TRouteVia.md) · **Access:** read/write

The accessors are extension methods of `IPCB_RoutingViaStyleRuleHelper` (`using PCB;`).

A new rule has `TRouteVia.eViaThruHole`.

## Inherited members

- From [IPCB_Rule](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md): [ActualCheck](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#actualcheck), [ActualCheck_1](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#actualcheck_1), [CheckBinaryScope](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#checkbinaryscope), [CheckUnaryScope](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#checkunaryscope), [CollisionExpansion](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#collisionexpansion), [Comment](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#comment), [DataSummaryString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#datasummarystring), [DefinedByLogicalDocument](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#definedbylogicaldocument), [DRCEnabled](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#drcenabled), [Export_ToParameters_1](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#export_toparameters_1), [GetWhatsThisHelpString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#getwhatsthishelpstring), [IsUnary](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#isunary), [LayerKind](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#layerkind), [Name](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#name), [NetScope](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#netscope), [NetScopeMatches](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#netscopematches), [Priority](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#priority), [RuleKind](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#rulekind), [Scope1Expression](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#scope1expression), [Scope1Includes](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#scope1includes), [Scope2Expression](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#scope2expression), [Scope2Includes](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#scope2includes), [ScopeDescriptorString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#scopedescriptorstring), [ScopeKindIsValid](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#scopekindisvalid), [ShortDescriptorString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#shortdescriptorstring), [ViolationDescriptorString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Rule.md#violationdescriptorstring)
- From [IPCB_Primitive](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md): [AllowGlobalEdit](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#allowglobaledit), [BeginModify](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#beginmodify), [Board](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#board), [BoundingRectangle](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#boundingrectangle), [BoundingRectangleChildren](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#boundingrectanglechildren), [BoundingRectangleForPainting](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#boundingrectangleforpainting), [BoundingRectangleForSelection](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#boundingrectangleforselection), [CancelModify](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#cancelmodify), [Component](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#component), [Coordinate](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#coordinate), [DescriptorString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#descriptorstring), [DetailString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#detailstring), [Dimension](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#dimension), [DrawAsPreview](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#drawaspreview), [DRCError](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#drcerror), [Enabled](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled), [Enabled_Direct](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled_direct), [Enabled_vComponent](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled_vcomponent), [Enabled_vCoordinate](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled_vcoordinate), [Enabled_vDimension](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled_vdimension), [Enabled_vNet](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled_vnet), [Enabled_vPolygon](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabled_vpolygon), [EnableDraw](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#enabledraw), [EndModify](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#endmodify), [Export_ToParameters](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#export_toparameters), [FlipXY](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#flipxy), [GraphicallyInvalidate](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#graphicallyinvalidate), [Handle](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#handle), [Identifier](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#identifier), [InBoard](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#inboard), [InComponent](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#incomponent), [InCoordinate](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#incoordinate), [Index](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#index), [InDimension](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#indimension), [InNet](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#innet), [InPolygon](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#inpolygon), [InSelectionMemory](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#inselectionmemory), [IsAssyTestPoint_Bottom](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#isassytestpoint_bottom), [IsAssyTestPoint_Top](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#isassytestpoint_top), [IsElectricalPrim](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#iselectricalprim), [IsFreePrimitive](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#isfreeprimitive), [IsHidden](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#ishidden), [IsKeepout](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#iskeepout), [IsPreRoute](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#ispreroute), [IsSaveable](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#issaveable), [IsTenting](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#istenting), [IsTenting_Bottom](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#istenting_bottom), [IsTenting_Top](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#istenting_top), [IsTestPoint_Bottom](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#istestpoint_bottom), [IsTestPoint_Top](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#istestpoint_top), [Layer](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#layer), [MiscFlag1](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#miscflag1), [MiscFlag2](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#miscflag2), [MiscFlag3](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#miscflag3), [Moveable](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#moveable), [MoveByXY](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#movebyxy), [MoveToXY](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#movetoxy), [Net](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#net), [ObjectID](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#objectid), [ObjectIDString](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#objectidstring), [PadCacheRobotFlag](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#padcacherobotflag), [PasteMaskExpansion](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#pastemaskexpansion), [Polygon](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#polygon), [PolygonOutline](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#polygonoutline), [PowerPlaneClearance](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#powerplaneclearance), [PowerPlaneConnectStyle](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#powerplaneconnectstyle), [PowerPlaneReliefExpansion](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#powerplanereliefexpansion), [Preview](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#preview), [ReliefAirGap](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#reliefairgap), [ReliefConductorWidth](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#reliefconductorwidth), [ReliefEntries](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#reliefentries), [Replicate](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#replicate), [RequiredParamterSpace](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#requiredparamterspace), [RotateBy](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#rotateby), [Selected](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#selected), [SolderMaskExpansion](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#soldermaskexpansion), [SwapLayerPairs](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#swaplayerpairs), [TearDrop](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#teardrop), [UnionIndex](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#unionindex), [UniqueId](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#uniqueid), [UniqueID](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#uniqueid-1), [Used](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#used), [UserRouted](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#userrouted), [V7Layer](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#v7layer), [ViewableObjectID](https://altiumdeveloper.github.io/ad-sdk-docs/reference/pcb/IPCB_Primitive.md#viewableobjectid)