# MailMerge.BlockMergingEventArgs Class

> The BlockMergingEventArgs class provides data for the BlockMerging event.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Reference
- **Kind:** Class
- **Introduced:** 23.0
- **Namespace:** `TXTextControl.DocumentServer`
- **Package:** `TXTextControl.TextControl.WinForms.SDK` (assembly `TXDocumentServer.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXDocumentServer.dll` from the setup
- **Inherits:** `System.ComponentModel.CancelEventArgs`
- **Path:** TX Text Control .NET for Windows Forms > Reference > TXTextControl.DocumentServer > MailMerge.BlockMergingEventArgs Class
- **834 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/llms-full.txt

---

### Description

The BlockMergingEventArgs class provides data for the [BlockMerging](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge/blockmerging-event/llms-full.txt) event.

### Syntax

```csharp
public class MailMerge.BlockMergingEventArgs : CancelEventArgs
```

```vbnet
Public Class MailMerge.BlockMergingEventArgs
    Inherits CancelEventArgs
```

### Examples

The following example creates a Block Merging Event Args instance and configures its cancel setting for a document workflow.

```csharp
TXTextControl.DocumentServer.MailMerge.BlockMergingEventArgs blockMergingEventArgs = new("CustomerName", Array.Empty<TXTextControl.DocumentServer.DataSources.IDataRowAdapter>());
blockMergingEventArgs.Cancel = true;
```

```vbnet
Dim blockMergingEventArgs As New TXTextControl.DocumentServer.MailMerge.BlockMergingEventArgs("CustomerName", Array.Empty(Of TXTextControl.DocumentServer.DataSources.IDataRowAdapter)())
blockMergingEventArgs.Cancel = True
```

---

## In This Section

- [MailMerge.BlockMergingEventArgs.BlockData Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/blockdata-property/llms-full.txt): Gets the block data as an array of data rows. Each data row implements the IDataRowAdapter interface.
- [MailMerge.BlockMergingEventArgs.BlockName Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/blockname-property/llms-full.txt): Gets the name of the merge block the event was fired for.
- [MailMerge.BlockMergingEventArgs.ColumnNames Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/columnnames-property/llms-full.txt): Gets the column names of the table supplying the data for the block.
- [MailMerge.BlockMergingEventArgs.SubTextPartID Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/subtextpartid-property/llms-full.txt): Gets the ID of the subtext part that represents the block.
- [MailMerge.BlockMergingEventArgs.SubTextPartNumber Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/subtextpartnumber-property/llms-full.txt): Gets the 1-based number of the subtext part that represents the block.

---

## Nearby

- **Previous:** [MailMerge.BlockMerging Event](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge/blockmerging-event/llms-full.txt)
- **Next:** [MailMerge.BlockMergingEventArgs.BlockData Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/blockdata-property/llms-full.txt)