gxt | 易学教程

GXT - ComoboBox with Multi select feature

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问题 I have a task to design a control of size ComboBox (GXT) with Multi-select feature. I tried to set CheckBoxListView using setView of ComboBox but did not seemed to work. Can anybody please guide me if there is any way using the GXT framework I can achieve this? PS: I found a component called XComboBox in sencha forum (java class, source code) which works good, but cant be used as its under GNU GPL License Thanks in advance! 回答1: Thanks @smiletolead for your guidance, I found a solution by

How to implement freeze column in GXT 3.x?

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问题 How can frozen columns be implemented in GXT 3.x (from Sencha)? Ext-JS, another product from Sencha seems to implement this, but I can't see where the Java based GXT implement the same thing: http://dev.sencha.com/deploy/ext-4.0.0/examples/grid/locking-grid.html 回答1: The basic idea is that you need two different scrolling containers, one with the fixed column(s), one with the scrolling columns. Each of these need to be in a distinct viewport, so the standard Grid/GridView doesn't work well

google appengine not supporting FileOutputStream

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I am trying to write to a file in Google appengine but it giving a error message java.io.FileOutputStream is not supported by Google App Engine's Java runtime environment even though I imported import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; Well it's not a java compiler error. This class is a restricted API in Google App Engine you are not allowed to use it. Read about the GAE Java Runtime Environment and restrictions here: http://code.google.com/appengine/docs/java/runtime.html The closest you will get to file storage on GAE

How to prevent a browser from storing password

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I need to stop browsers from storing the username & password values, because I'm working on a web application which contains more secure data. My client asked me to do this. I tried the autocomplete="off" attribute in the HTML form & password fields. But it is not working in the latest browsers like Chrome 55, Firefox 38+, IE 11...etc. What is the best solution for this? Sree Thank you for giving a reply to me. I followed the below link Disable browser 'Save Password' functionality I resolved the issue by just adding readonly & onfocus="this.removeAttribute('readonly');" attributes besides