1

我是 ExtJS 的新手，需要ComboBox在EditorGridPanel.

到目前为止，我的代码没有在 中创建组合框，EditorGridPanel并且EditorGridPanel也没有显示。

这是代码，感谢您的帮助。夺旗

   /*==== INVOICE DATA START =======================================================*/

/* create the ComboBox editor */
var idCombo = new Ext.form.ComboBox({
    id: 'id',
    valueField: 'id',
    displayField:'id',
    store: '',  //what do I store here?? 
    triggerAction: 'all'
});

var idRenderer = function(value,metaData,record){
   // try record.data.teacher here
   return "displayValue"


var iLineItemCM = new Ext.grid.ColumnModel([

    {
        id: 'i_line_item_id',
        header: 'Line Item ID',
        dataIndex: 'i_line_item_id',
        width: 80,
        editor: this.idCombo(),
        renderer:idRenderer

    }

,{
        id:'i_line_item_name',
        header: "Line Item Name",
        dataIndex: 'i_line_item_name',
        width: 315,
        resizable: true,
        align: 'center',
        editor: new Ext.form.TextArea({
            allowBlank: false
        })
    }
    ,{
        header: "Amount",
        dataIndex: 'i_line_item_amt',
        width: 80,
        align: 'right',
        renderer: 'usMoney',
        editor: new Ext.form.NumberField({
            allowBlank: false,
            allowNegative: false,
            maxValue: 100000
        })
    }
    ]);

var iLineItemRec =
new Ext.data.Record.create([
    {
    name: 'i_line_item_id'    ,
    mapping: 'i_line_item_id'  ,
    type: 'string'
}
,{
    name: 'i_line_item_name'    ,
    mapping: 'i_line_item_name'  ,
    type: 'string'
}
,{
    name: 'i_line_item_amt'     ,
    mapping: 'i_line_item_amt'   ,
    type: 'string'
}
]);

var iLineItemStore = new Ext.data.Store({
    url: '',
    reader: new Ext.data.JsonReader({
        root: 'rows'
    },
    iLineItemRec
    )
});

var iLineItemGrid = new Ext.grid.EditorGridPanel({
    id: 'iLineItemStore',
    store: iLineItemStore,
    cm: iLineItemCM,
    cls: 'iLineItemGrid',
    width: 'auto',
    height: 'auto',
    frame: true,
    //title:'Edit Plants?',
    //plugins:checkColumn,
    clicksToEdit:1,
    viewConfig: {
        //forceFit: true
        autoFit:true
    },
    tbar: [{
        text: 'Add',
        tooltip:'Add the line item',
        handler : function(){
            var r = new iLineItemRec({
                i_line_item_name: '',
                i_line_item_amt: ''
            });
            iLineItemGrid.stopEditing();
            iLineItemStore.insert(0, r);
            iLineItemGrid.startEditing(0, 0);
        }
    },
    {
        text: 'Delete',
        tooltip:'Remove the selected line item',
        handler: function(){
            iLineItemGrid.stopEditing();
            var r = iLineItemGrid.getSelectionModel().getSelectedCell();
            iLineItemStore.removeAt(r[1]);
        }

    }

    ]
});
/////////////////// CODE ENDS
4

1 回答 1

0

您需要创建一个数据存储并将其绑定到您的组合框。然后在组合配置中，您可以告诉它您要显示商店中的哪个字段以及您想要哪个字段作为值。这是来自 ExtJS 4 API Docs 的示例：

// The data store containing the list of states
var states = Ext.create('Ext.data.Store', {
    fields: ['abbr', 'name'],  // fields that your data consists of
    data : [
        {"abbr":"AL", "name":"Alabama"},
        {"abbr":"AK", "name":"Alaska"},
        {"abbr":"AZ", "name":"Arizona"}
        //...
    ]
});

// Create the combo box, attached to the states data store
var combo = Ext.create('Ext.form.ComboBox', {
    fieldLabel: 'Choose State',
    store: states,  // here you use the store
    queryMode: 'local',
    displayField: 'name',  // you tell your combobox which field to display from the store
    valueField: 'abbr',  // you tell your combobox which field to use for value from the store
    renderTo: Ext.getBody()
});

如果您使用combo.getValue()，并且如果在您的组合框中选择了例如“阿拉斯加”，它将返回“AK”。如果您愿意，也可以使用与 displayField 和 valueField 相同的字段。

于 2012-10-25T09:27:21.120 回答