Ext JS 3：从fileuploadfield获取数据

Question

我在Ext JS 3.3.1中使用Ext.ux.FileUploadField。我需要从表单中获取文件数据。有没有人知道如果这是可能的没有提交表格？我可以看到文件名，但没有文件数据...

谢谢。

Answer 1

// get a handle to the FileUploadField component (e.g. by ID) 
var fp = Ext.getCmp('fileUploadField'); 

//add a handler to FileUploadField's fileselected event 
fp.on('fileselected', this.onFileUploadFieldFileSelected, this); 



// 'fileselected' event handler 
onFileUploadFieldFileSelected : function(fp, fileName) { 
    // get a handle to the selected file 
    var selectedFile = fp.fileInput.dom.files[0]; 

    // read the contents of the file using FileReader and display content here 
}