//獲取系統(tǒng)配置項(xiàng)下拉列表

function GetSysConfigComboBox(groupId, inputName, fieldLabel, value, disabled) {

    var store = new Ext.data.Store({

        proxy: new Ext.data.HttpProxy({ url: "SysConfigAction.ashx?action=list&groupid=" + groupId }),

        reader: new Ext.data.JsonReader(

                      { root: "" },

                      Ext.data.Record.create(["Value", "Remark"])

                      )

    });

    var combo = new Ext.form.ComboBox({

        store: store,

        hiddenName: inputName, //提交到后臺(tái)的input名稱

        valueField: 'Value',

        displayField: 'Remark', //store字段中你要顯示的字段，多字段必選參數(shù)，默認(rèn)當(dāng)mode為remote時(shí)displayField為undefine，當(dāng)select列表時(shí)displayField為"text"

        mode: 'local', //因?yàn)閐ata已經(jīng)取數(shù)據(jù)到本地了，所以'local',默認(rèn)為"remote"，枚舉完

        triggerAction: 'all', //很重要

        emptyText: '請(qǐng)選擇...',

        editable: false,

        fieldLabel: fieldLabel   //設(shè)置表單中顯示的標(biāo)簽

    });

    store.on('load', function() { //數(shù)據(jù)加載完成后設(shè)置下拉框值

        if (value)

            combo.setValue(value);

        combo.disabled = disabled;

    });

    store.load();

    return combo;

}

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轉(zhuǎn)自 https://blog.csdn.net/ranbolwb/article/details/7347374