ItemTemplateContainerBase.EvalDataItem(String) Method

Evaluates a data-binding expression.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

public object EvalDataItem(
    string expression
)

VB.NET

Public Function EvalDataItem(
    expression As String
) As Object

Parameters

Name	Type	Description
expression	String	A string value representing the expression to evaluate. The navigation path from the container to the public property value, to be placed in the bound control property.

Returns

Type	Description
Object	A Object instance that results from the evaluation of the data-binding expression.

Remarks

This method is particularly useful when binding data to controls that are in a templated list.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the EvalDataItem(String) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

asp-net-web-forms-implement-pdf-viewer/CS/PdfViewer.ascx.cs#L104

DataViewItemTemplateContainer container = image.NamingContainer as DataViewItemTemplateContainer;
int pageNumber = (int)container.EvalDataItem("PageNumber");

VB.NET

asp-net-web-forms-implement-pdf-viewer/VB/PdfViewer.ascx.vb#L111

Dim container As DevExpress.Web.DataViewItemTemplateContainer = TryCast(image.NamingContainer, DevExpress.Web.DataViewItemTemplateContainer)
Dim pageNumber As Integer = CInt(container.EvalDataItem("PageNumber"))
Using bitmap As System.Drawing.Bitmap = Me.DocumentProcessor.CreateBitmap(pageNumber, 900)