Hello, I'm currently working on my first Struts application and I'm facing two problems.
First, I've created a custom tag that creates different types of HTML form fields. The number of fields generated varies and the names of the fields are dynamic. I can't figure out how to let Struts populate the ActionForm that's linked to the Action that handles the form. I thought I read somewhere that you can use some feature of the JavaBean specs to tell Struts what method to call (maybe by using PropertyDescriptors?), but I can't find anything about this. Second, I don't know how I can restore any previously submitted values when the form is shown for a second time, for example in case of a validation error. Do I have access to the ActionForm from a custom tag implementation somehow? Or can I let the ActionForm set properties in my custom tag? I've been looking at the source code for the Struts <html:select>-tag but found no clues to how Struts manages to make the last submitted item selected when the form is redisplayed. When I use the following Stuts HTML <html:select property="selectedDocTypeId"> <html:options collection="docTypeList" property="id" labelProperty="name"/> </html:select> how does the select-tag know which ActionForm bean it should use to get the selected item. I've recompiled the select-tag with some debugging output and put it in my own taglib, but the I get the Exception I expected: there is no form bean under the default name used in the select-tag in pageContext. I'm really at a loss and I hope you can help me with this. Thanks in advance, Freek Segers
