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NavBarGroupDataFields.NavigateUrlField Property

Gets or sets the name of a data field (or an xml element’s attribute) which provides group navigation locations.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v21.1.dll

Declaration

[DefaultValue("")]
public override string NavigateUrlField { get; set; }

Property Value

Type Default Description
String

String.Empty

A string value that specifies the name of the required data source field.

Remarks

The NavigateUrlField property is in effect if the NavBarGroupDataFields control is bound to a data source (via the ASPxDataWebControlBase.DataSourceID or ASPxDataWebControlBase.DataSource property).

Use the NavigateUrlField property to specify the bound data source’s data field (or an xml element’s attribute) which stores navbar group’s navigate URLs. The NavigateUrlField property maps the NavBarGroup.NavigateUrl properties of NavBarGroup objects to the specified data field’s values.

You can format the obtained navigation locations by using the NavBarGroupDataFields.NavigateUrlFormatString property.

If the NavigateUrlField property of a data bound NavBarGroupDataFields control is not defined, the control can automatically obtain group navigation URLs from a data field whose name is “NavigateUrl” (which is equal to the NavBarGroup.NavigateUrl property’s name). You can also handle the ASPxNavBar.GroupDataBound event to manipulate a group’s settings, as required.

Example

In the code sample below, the ASPxNavBar control is bound to an XML file using a standard XmlDataSource component. The item/group NavigateUrlField and TextField properties are used to specify the names of data item attributes from which the corresponding item/group settings should be obtained. The ItemDataBound and GroupDataBound events are handled to add corresponding images to items and groups respectively.

The image below shows the result.

ASPxNavBar_DataBoundEvents

protected void ASPxNavBar1_ItemDataBound(object source, DevExpress.Web.NavBarItemEventArgs e) {
     System.Xml.XmlNode dataItem = ((e.Item.DataItem as IHierarchyData).Item as System.Xml.XmlNode);
     switch (dataItem.Name) {
          case "ctor":
               e.Item.Image.Url = "Images/ctor.gif";
               break;
          case "property":
               e.Item.Image.Url = "Images/property.gif";
               break;
          case "method":
               e.Item.Image.Url = "Images/method.gif";
               break;
          case "event":
               e.Item.Image.Url = "Images/event.gif";
               break;
     }
}

protected void ASPxNavBar1_GroupDataBound(object source, DevExpress.Web.NavBarGroupEventArgs e) {
     e.Group.HeaderImage.Url = "Images/class.gif";
}
See Also