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 # Interface IHiddenFormView

 Last update: 09.03.2026 

<a id="VM_Managed_DAFUL_Pre_IHiddenFormView"></a>

Namespace: [VM.Managed.DAFUL.Pre](VM.Managed.DAFUL.Pre.md)  
Assembly: dfpredat.dll

This interface is to represent the hidden form view.

```csharp
public interface IHiddenFormView

```

#### Extension Methods

[LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects&lt;T&gt;(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Methods

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_ClearUserControl"></a> ClearUserControl()

Clears the user control.

```csharp
void ClearUserControl()

```

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_Fit"></a> Fit()

Fits this instance.

```csharp
void Fit()

```

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_GetActiveDesignType"></a> GetActiveDesignType()

Updates the active user control.

```csharp
string GetActiveDesignType()

```

#### Returns

string

Design Type

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_OnButtonDown_System_Windows_Forms_MouseEventArgs_"></a> OnButtonDown(MouseEventArgs)

Called when \[button down\].

```csharp
void OnButtonDown(MouseEventArgs arg)

```

#### Parameters

`arg` MouseEventArgs

The  instance containing the event data.

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_OnButtonUp_System_Windows_Forms_MouseEventArgs_"></a> OnButtonUp(MouseEventArgs)

Called when \[button up\].

```csharp
void OnButtonUp(MouseEventArgs arg)

```

#### Parameters

`arg` MouseEventArgs

The  instance containing the event data.

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_SelectTabInUserControl_System_Int32_"></a> SelectTabInUserControl(int)

Selects the tab in user control.

```csharp
void SelectTabInUserControl(int nIdx)

```

#### Parameters

`nIdx` int

Index of the n.

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_SetActiveUserControl_System_String_System_Object_"></a> SetActiveUserControl(string, object)

Sets the active user control.

```csharp
void SetActiveUserControl(string strType, object obj)

```

#### Parameters

`strType` string

Type of the string.

`obj` object

The object.

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_ShowTabInDesigner_System_Int32_System_Boolean_"></a> ShowTabInDesigner(int, bool)

Shows the tab in designer.

```csharp
void ShowTabInDesigner(int nIdx, bool bShow)

```

#### Parameters

`nIdx` int

Index of the n.

`bShow` bool

if set to `true` \[b show\].

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_UpdateUserControl_System_Object_"></a> UpdateUserControl(object)

Updates the user control.

```csharp
void UpdateUserControl(object obj)

```

#### Parameters

`obj` object

The object.

### <a id="VM_Managed_DAFUL_Pre_IHiddenFormView_UpdateView"></a> UpdateView()

Updates the view.

```csharp
void UpdateView()

```