Adding CSV upload browse button to Ext.Action

问题

I am trying to create a CSV File upload on GeoExt Map App. I need to place the upload function within the Ext.Action, so that I can add it to the toolbar of the GeoExt Panel. I am trying to implement this example. Here is my code,

    action = new Ext.Action({
    text: "Upload Excel",
    control: Ext.create('Ext.form.Panel', {
        title: 'Upload a CSV File',
        width: 400,
        bodyPadding: 10,
        frame: true,
        renderTo: Ext.getBody(),
        items: [{
            xtype: 'filefield',
            name: 'csv',
            fieldLabel: 'CSV Upload',
            labelWidth: 50,
            msgTarget: 'side',
            allowBlank: false,
            buttonText: 'Select CSV File'
        }],

        buttons: [{
            text: 'Upload',
            handler: function () {
                var form = this.up('form')
                    .getForm();
                if (form.isValid()) {
                    form.submit({
                        url: 'file-upload.py',
                        waitMsg: 'Uploading the CSV File...',
                        success: function (fp, o) {
                            Ext.Msg.alert('Success', 'Your csv file "' + o.result.file + '" has been uploaded.');
                        }
                    });
                }
            }
        }]
    }),
    map: map,
    // button options
    tooltip: "Upload CSV File",
    // check item options
    group: "newTool"
});
actions["upCSV"] = action;
toolbarItems.push(new Ext.button.Button(action));

Firebug keeps giving me this error,

TypeError: b[d.xtype || e] is not a constructor

Am I declaring the function incorrectly within the Ext.Action?

回答1:

You can't directly push the action into a toolbar since an Ext.Action is not a type of Ext.Component. An Ext.Action is basically a means of creating an abstraction layer which can be reused multiple times. Here you need to do the following:

toolbarItems.push(new Ext.button.Button(action));

From the documentation:

Actions let you share handlers, configuration options and UI updates across any components that support the Action interface (primarily Ext.toolbar.Toolbar, Ext.button.Button and Ext.menu.Menu components)

来源：https://stackoverflow.com/questions/12571627/adding-csv-upload-browse-button-to-ext-action