# MailMerge.BlockMergingEventArgs Class

> The BlockMergingEventArgs class provides data for the BlockMerging event.

- **Product:** TX Text Control .NET for WPF
- **Section:** Reference
- **Kind:** Class
- **Introduced:** 23.0
- **Namespace:** `TXTextControl.DocumentServer`
- **Package:** `TXTextControl.TextControl.WPF.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 WPF > Reference > TXTextControl.DocumentServer > MailMerge.BlockMergingEventArgs Class
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/llms-full.txt

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## On This Page

- [Description](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/#description)
- [Syntax](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/#syntax)
- [Examples](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/#examples)
- [Members](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/#members)

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## In This Section

- [MailMerge.BlockMergingEventArgs.BlockData Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/blockdata-property/llms.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-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/blockname-property/llms.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-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/columnnames-property/llms.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-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/subtextpartid-property/llms.txt): Gets the ID of the subtext part that represents the block.
- [MailMerge.BlockMergingEventArgs.SubTextPartNumber Property](https://docs.textcontrol.com/tx-text-control-dotnet-wpf/reference/txtextcontrol-documentserver/mailmerge-blockmergingeventargs/subtextpartnumber-property/llms.txt): Gets the 1-based number of the subtext part that represents the block.

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## Nearby

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