SnapText Interface

Provides functionality to manipulate text in Snap documents.

Namespace: DevExpress.Snap.Core.API

Assembly: DevExpress.Snap.v19.1.Core.dll

Declaration

C#

public interface SnapText :
    SnapSingleListItemEntitySupportsParameters,
    SnapSingleListItemEntity,
    SnapEntity,
    IDisposable

VB.NET

Public Interface SnapText
    Inherits SnapSingleListItemEntitySupportsParameters,
             SnapSingleListItemEntity,
             SnapEntity,
             IDisposable

Related API Members

The following members return SnapText objects:

• ISnapFieldOwner.CreateSnText(DocumentPosition, String)

Remarks

SnapText class represents SNTEXT fields in a Shap document. Call the ISnapFieldOwner.CreateSnText method to create a new SnapText object. Refer to the Snap Fields topic for a list of available field switches.

Example

The code sample below shows how to insert SNTEXT fields in a table row.

C#

// Add a Snap list to the document.
SnapList list = doc.CreateSnList(doc.Range.End, @"List");
list.BeginUpdate();
list.EditorRowLimit = 100;

// Add a header to the Snap list.
SnapDocument listHeader = list.ListHeader;
Table listHeaderTable = listHeader.Tables.Create(listHeader.Range.End, 1, 3);
TableCellCollection listHeaderCells = listHeaderTable.FirstRow.Cells;
listHeader.InsertText(listHeaderCells[0].ContentRange.End, "Product Name");
listHeader.InsertText(listHeaderCells[1].ContentRange.End, "Units in Stock");
listHeader.InsertText(listHeaderCells[2].ContentRange.End, "Unit Price");

// Customize the row template.
SnapDocument listRow = list.RowTemplate;
Table listRowTable = listRow.Tables.Create(listRow.Range.End, 1, 3);
TableCellCollection listRowCells = listRowTable.FirstRow.Cells;
listRow.CreateSnText(listRowCells[0].ContentRange.End, @"ProductName");
listRow.CreateSnText(listRowCells[1].ContentRange.End, @"UnitsInStock");
listRow.CreateSnText(listRowCells[2].ContentRange.End, @"UnitPrice \$ $0.00");

list.EndUpdate();
list.Field.Update();

VB.NET

' Add a Snap list to the document
Dim list As SnapList = doc.CreateSnList(doc.Range.[End], "List")
list.BeginUpdate()
list.EditorRowLimit = 100

' Add a header to the Snap list
Dim listHeader As SnapDocument = list.ListHeader
Dim listHeaderTable As Table = listHeader.Tables.Create(listHeader.Range.[End], 1, 3)
Dim listHeaderCells As TableCellCollection = listHeaderTable.FirstRow.Cells
listHeader.InsertText(listHeaderCells(0).ContentRange.[End], "Product Name")
listHeader.InsertText(listHeaderCells(1).ContentRange.[End], "Units in Stock")
listHeader.InsertText(listHeaderCells(2).ContentRange.[End], "Unit Price")

' Customize the row template
Dim listRow As SnapDocument = list.RowTemplate
Dim listRowTable As Table = listRow.Tables.Create(listRow.Range.[End], 1, 3)
Dim listRowCells As TableCellCollection = listRowTable.FirstRow.Cells
listRow.CreateSnText(listRowCells(0).ContentRange.[End], "ProductName")
listRow.CreateSnText(listRowCells(1).ContentRange.[End], "UnitsInStock")
listRow.CreateSnText(listRowCells(2).ContentRange.[End], "UnitPrice \$ $0.00")
list.EndUpdate()
list.Field.Update()

Field Result in Case of Empty Data

You can use SnapSingleListItemEntity.EnableEmptyFieldDataAlias property to use an alternative field result (the SnapSingleListItemEntity.EmptyFieldDataAlias value) if the related entry is empty. The table below shows SNTEXT field result in different empty data source scenarios:

Empty Data Source Scenario	Field Result
Empty data source (no data source entries or objects in the list)	<<DataFieldName>>
The data source does not contain the required entry	Empty line or SnapSingleListItemEntity.EmptyFieldDataAlias value
The required data entry is null or DBNull.Value	Empty line or SnapSingleListItemEntity.EmptyFieldDataAlias value
The required data entry returns an empty string.	Empty string. The SnapSingleListItemEntity.EnableEmptyFieldDataAlias property value is ignored.