Ewa.NamedItemCollection.getItemByName(name)

Applies to: apps for SharePoint | SharePoint Server 2010

In this article
Return Value
Remarks
Example
Applies To

Gets the named item with the matching name.

var value = Ewa.NamedItemCollection.getItemByName(name);

Parameters

name

Return Value

Named item

Remarks

The getItemByName method returns the specified named item using the friendly name of the named item as an index value. The method returns the named item with the lower index value if multiple named items have the same name. Returns null if the named item does not exist.

Example

The following code example shows how to add a button and a text input box to the page and then adds an event handler to the button onClick event that takes the name of the named item entered in the text box and gets the named item with that name. The event handler then displays the NamedItemType of the named item in an alert message.

<script type="text/javascript">
 
var ewa = null;
 
// Add event handler for onload event.
if (window.attachEvent) 
{ 
    window.attachEvent("onload", ewaOmPageLoad);    
} 
else 
{ 
    window.addEventListener("DOMContentLoaded", ewaOmPageLoad, false); 
}

// Add event handler for applicationReady event.
function ewaOmPageLoad() 
{ 
Ewa.EwaControl.add_applicationReady(getEwa); 
} 

function getEwa()
{        
    // Get a reference to the Excel Services Web Part.
    ewa = Ewa.EwaControl.getInstances().getItem(0);                                   
}              

// Get NamedItemType as string.
function getNamedItemTypeAsString(type)
{
    var myType = null;
    
    switch(type)
    {
        case Ewa.NamedItemType.NamedRange:
            myType = "NamedRange";
            break;
        case Ewa.NamedItemType.Parameter:
            myType = "Parameter";
            break;
        case Ewa.NamedItemType.Table:
            myType = "Table";
            break;
        case Ewa.NamedItemType.PivotTable:
            myType = "PivotTable";
            break;
        case Ewa.NamedItemType.Chart:  
            myType = "Chart";
            break;
        default:
            myType = "undefined";
    }        
    
    return myType;    
}


// Use the button onClick event handler.
function getTypeButton()
{
    // Get the name of the named item from the text box.
var niName = document.getElementById("EnterName").value; 

// Get the NamedItems collection.
    var items = ewa.getActiveWorkbook().getNamedItems();
    
    // Get the specified named item in the collection by friendly name.
var item = items.getItemByName(niName);

 
if (item != null) 
{
    // Get the NamedItemType as a string.
        var type = getNamedItemTypeAsString(item.getNamedItemType());        
        alert("Named item " + niName + " has a named item type of " + type + ".");              
}
else
{
// No named item present with that friendly name.
alert("No named item by that name.");
    }
}

</script>
<input type="text" id="EnterName" value="Enter name" />
<input type="button" id="GetNiType" value="Get Named Item Type" onclick="getTypeButton()" />

Applies To

Ewa.NamedItemCollection Object

See Also

Concepts

Ewa.NamedItemCollection Methods

Ewa Namespace