# ApplicationField.Parameters Property

> Gets or sets the field's parameters. The order and format of the strings depend on the field's format. For example a Microsoft Word MergeField has the following format: MERGEFIELD FieldName [switches]. In this case the first string of the array is the FieldName and the following strings are possible switches. The string MERGEFIELD is the type name of the field and can be obtained through the ApplicationField.TypeName property. If a field has no parameters, this array is null.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Reference
- **Kind:** Property
- **Introduced:** 14.0
- **Namespace:** `TXTextControl`
- **Package:** `TXTextControl.TextControl.WinForms.SDK` (assembly `TXTextControl.dll`, from the private NuGet feed or Text Control Offline Packages)
- **.NET Framework:** reference `TXTextControl.dll` from the setup
- **Path:** TX Text Control .NET for Windows Forms > Reference > TXTextControl > ApplicationField.Parameters Property
- **817 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/applicationfield/parameters-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/applicationfield/parameters-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/applicationfield/parameters-property/llms-full.txt

---

### Description

Gets or sets the field's parameters. The order and format of the strings depend on the field's format. For example a Microsoft Word MergeField has the following format: MERGEFIELD FieldName \[switches\]. In this case the first string of the array is the FieldName and the following strings are possible switches. The string MERGEFIELD is the type name of the field and can be obtained through the [ApplicationField.TypeName](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/applicationfield/typename-property/llms-full.txt) property. If a field has no parameters, this array is null.

### Syntax

```csharp
public string[] Parameters { get; set; }
```

```vbnet
Public Property Parameters As String()
```

### Examples

The following example inserts and configures a Word-compatible mail-merge field by using `ApplicationField.Parameters`.

```csharp
textControl.Text = "Dear Customer";
textControl.InputPosition = new InputPosition(5);
ApplicationField applicationField = new(ApplicationFieldFormat.MSWord, "MERGEFIELD", "Customer", new[] { "CustomerName" });
textControl.ApplicationFields.Add(applicationField);

applicationField.Parameters = new[] { "CustomerName" };
if (applicationField.Parameters != null)
{
    Console.WriteLine("Application Field: Parameters is available.");
}
```

```vbnet
textControl.Text = "Dear Customer"
textControl.InputPosition = New InputPosition(5)
Dim applicationField As New ApplicationField(ApplicationFieldFormat.MSWord, "MERGEFIELD", "Customer", New String() { "CustomerName" })
textControl.ApplicationFields.Add(applicationField)

applicationField.Parameters = New String() { "CustomerName" }
If applicationField.Parameters IsNot Nothing Then
    Console.WriteLine("Application Field: Parameters is available.")
End If
```

---

## Nearby

- **Previous:** [ApplicationField.Format Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/applicationfield/format-property/llms-full.txt)
- **Next:** [ApplicationField.TypeName Property](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/applicationfield/typename-property/llms-full.txt)