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MVCxTab.SetTabTemplateContent(Action<TabControlTemplateContainer>) Method

Allows you to set a template for the current tab’s content.

Namespace: DevExpress.Web.Mvc

Assembly: DevExpress.Web.Mvc5.v24.1.dll

NuGet Package: DevExpress.Web.Mvc5

Declaration

public void SetTabTemplateContent(
    Action<TabControlTemplateContainer> contentMethod
)

Parameters

Name Type Description
contentMethod Action<TabControlTemplateContainer>

A method to which a template content rendering is delegated.

Remarks

If the active tab template is not specified, the SetTabTemplateContent method is raised twice: once for the inactive tab state, and once for the active state. This can cause the following exception: “An extension with X name already rendered” because a control in the template is rendered twice with the same name. You can resolve this issue in the following ways:

  • Use the SetActiveTabTemplateContent method in addition to the SetTabTemplateContent method to specify a template for the active tab state.
  • Create a unique name based on the Active argument available in the SetTabTemplateContent method.
    tabsettings.TabPages.Add(c => {
        c.Name = "Tab1";
        c.Text = "First";
        c.SetTabTemplateContent(headsettings => {
            string isActive = headsettings.Active ? "active" : string.Empty;
            Html.DevExpress().Image(imgsettings => {
                imgsettings.Name = "img1_" + isActive;
                imgsettings.Properties.EmptyImage.IconID = IconID.NavigationHome16x16office2013;
                imgsettings.ControlStyle.CssClass = "TabHeadImage";
            }).Render();
        }
    }
    
See Also