How to set the Dropdown value in Sencha Ext JS 4.2

Question

I have JSON String

[{"firstName" : "John", "lastName" : "Smith"}]

How to set the value in Dropdown. I tried setValue() but Dropdown dispays all json objects.

Please help me, I am using Sencha Ext JS 4.2

Answer 1

您必须首先从要在组合中设置的记录中提取字符串，如下所示：

    combo.setValue(record.get("firstname") + " " + record.get("lastname"));