FileManagerItemMetadata.GetValueByKey(String) Method

Returns the item’s metadata value with the specified key.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v19.1.dll

Declaration

C#

public object GetValueByKey(
    string key
)

VB.NET

Public Function GetValueByKey(
    key As String
) As Object

Parameters

Name	Type	Description
key	String	A string value that is the key.

Returns

Type	Description
Object	An object which represents the item’s metadata value for the specified key property.

Remarks

An item’s metadata are key-value pairs of string and object types, respectively. The item’s metadata can be specified using the FileManagerItemProperties.Metadata property and an appropriate FileManagerFile or FileManagerFolder constructor. To access the item’s metadata, use the FileManagerItem.Metadata property.

To obtain the item’s metadata, use the following methods:

• the FileManagerItemMetadata.GetAllKeys and GetValueByKey methods (on the server side);
• the ASPxClientFileManagerItem.GetMetadata method (on the client side if the FileManagerSettings.EnableClientSideItemMetadata property is set to true).

C#

...
public string GetId(FileManagerFile file) {
    var id = (int)file.Metadata.GetValueByKey("numberKey");
    return id.ToString();
}
public string GetGuid(FileManagerFile file) {
    var guid = (Guid)file.Metadata.GetValueByKey("guidKey");
    return guid.ToString(); 
}
public string GetCreationDate(FileManagerFile file) {
    var date = (DateTime)file.Metadata.GetValueByKey("dateKey");
    return date.ToShortDateString() + " " + date.ToShortTimeString(); 
}
...