Re: Select Options Question
Chapter 16 in wiki struts book will tell you how to use options collections w/ DAO, and it has a lab. hth, .V [EMAIL PROTECTED] wrote: I am sure there is a slick way to do this, but it escapes me at the moment. I have a Select Box that I am populating with the html:options tag The result is: select name=cmbGroup id=groupList option value=jk12341Group 1/option option value=34t1fv1Group 2/option option value=32fq21Group 3/option ... /select I need the value for DAO actions performed from the search which will return a detail bean for display on an output JSP. On the output JSP I need to Display the Group Name that I selected from the input. My Form holds the group id and a field for the group name. The options that I can see are: 1. Requery the Database for the output page to retrieve the name given I have the key. This would work, but seems like a lot of overhead to go to the database each time. 2. Create a delimited value (ie option value=jk12341, Group 1Group 1/option) and use the String Split to get the value and label. (I am leaning toward this) 3. use javascript to update the field each time the select changes. The problem with this is that the select box can be very large based on the users selections on previous entries. 4. Store the Value Label list in the session (Don't like this at all because the volume of users that will use this application). Any other suggestions? -- thx, .V Broadband interface (RIA) + mail box safety = Roomity.com http://roomity.com/demo.jsp *Your* clubs, no sign up to read, ad supported; try broadband internet. cell: 917 825 3035 in DFW email: netsql at roomity.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Select Options Question
I'm not sure I understand... do you just need to have the group name when you display the detail for the selected item, or do you need the entire select list (to avoid getting it from the datavase each time?) If you just need the grou pname, could you simply put the group name in session? May or may not work depending on the flow of your app, but it would be a nice, simple solution if it'll work... just remember to clear it out at an appropriate time. The other option that comes to mind immediately is indeed to use Javascript... seems like all you'd need is a form with two hidden fields, groupName and value... onChange of the select, populate those two fields and submit() the form. You'd then have both pieces of information to render your detail page. Or maybe I don't understand the problem? Frank [EMAIL PROTECTED] wrote: I am sure there is a slick way to do this, but it escapes me at the moment. I have a Select Box that I am populating with the html:options tag The result is: select name=cmbGroup id=groupList option value=jk12341Group 1/option option value=34t1fv1Group 2/option option value=32fq21Group 3/option ... /select I need the value for DAO actions performed from the search which will return a detail bean for display on an output JSP. On the output JSP I need to Display the Group Name that I selected from the input. My Form holds the group id and a field for the group name. The options that I can see are: 1. Requery the Database for the output page to retrieve the name given I have the key. This would work, but seems like a lot of overhead to go to the database each time. 2. Create a delimited value (ie option value=jk12341, Group 1Group 1/option) and use the String Split to get the value and label. (I am leaning toward this) 3. use javascript to update the field each time the select changes. The problem with this is that the select box can be very large based on the users selections on previous entries. 4. Store the Value Label list in the session (Don't like this at all because the volume of users that will use this application). Any other suggestions? -- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Select Options Question
On the result page I only need the Label for the selected option. Not the entire list. The problem is that when you submit the form, you only submit the value in the form object and loose the label. I need to pass the label as well so that I do not have to requery for it. The way that i have it currently is that the value contains a comma delemited string containing both the label and key (overkill on the bandwidth I know). In my action class, I do a string.split on the comma and pass the first value to my DAO processor and the Second value I put in my form for display. It is the only way I could think of without iterating through the options or storing the initial results which populate the option list. Frank W. Zammetti [EMAIL PROTECTED] Frank W. Zammetti [EMAIL PROTECTED] 09/01/2005 11:28 AM Please respond to Struts Users Mailing List user@struts.apache.org To Struts Users Mailing List user@struts.apache.org cc Subject Re: Select Options Question I'm not sure I understand... do you just need to have the group name when you display the detail for the selected item, or do you need the entire select list (to avoid getting it from the datavase each time?) If you just need the grou pname, could you simply put the group name in session? May or may not work depending on the flow of your app, but it would be a nice, simple solution if it'll work... just remember to clear it out at an appropriate time. The other option that comes to mind immediately is indeed to use _javascript_... seems like all you'd need is a form with two hidden fields, groupName and value... onChange of the select, populate those two fields and submit() the form. You'd then have both pieces of information to render your detail page. Or maybe I don't understand the problem? Frank [EMAIL PROTECTED] wrote: I am sure there is a slick way to do this, but it escapes me at the moment. I have a Select Box that I am populating with the html:options tag The result is: select name=cmbGroup id=groupList option value=jk12341Group 1/option option value=34t1fv1Group 2/option option value=32fq21Group 3/option ... /select I need the value for DAO actions performed from the search which will return a detail bean for display on an output JSP. On the output JSP I need to Display the Group Name that I selected from the input. My Form holds the group id and a field for the group name. The options that I can see are: 1. Requery the Database for the output page to retrieve the name given I have the key. This would work, but seems like a lot of overhead to go to the database each time. 2. Create a delimited value (ie option value=jk12341, Group 1Group 1/option) and use the String Split to get the value and label. (I am leaning toward this) 3. use _javascript_ to update the field each time the select changes. The problem with this is that the select box can be very large based on the users selections on previous entries. 4. Store the Value Label list in the session (Don't like this at all because the volume of users that will use this application). Any other suggestions? -- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Select Options Question
You can also build a javascript array of the descriptions. When the user selects the option from the list, execute a javascript function that will do a lookup for the description in the array and set a hidden form field with the description found in the array. It may happen that the character you use to delimit the key and value will end up in the value and then the fun starts ! HTH, Glenn [EMAIL PROTECTED] 01/09/2005 12:07 PM Please respond to Struts Users Mailing List user@struts.apache.org To Struts Users Mailing List user@struts.apache.org cc Struts Users Mailing List user@struts.apache.org Subject Re: Select Options Question On the result page I only need the Label for the selected option. Not the entire list. The problem is that when you submit the form, you only submit the value in the form object and loose the label. I need to pass the label as well so that I do not have to requery for it. The way that i have it currently is that the value contains a comma delemited string containing both the label and key (overkill on the bandwidth I know). In my action class, I do a string.split on the comma and pass the first value to my DAO processor and the Second value I put in my form for display. It is the only way I could think of without iterating through the options or storing the initial results which populate the option list. Frank W. Zammetti [EMAIL PROTECTED] Frank W. Zammetti [EMAIL PROTECTED] 09/01/2005 11:28 AM Please respond to Struts Users Mailing List user@struts.apache.org To Struts Users Mailing List user@struts.apache.org cc Subject Re: Select Options Question I'm not sure I understand... do you just need to have the group name when you display the detail for the selected item, or do you need the entire select list (to avoid getting it from the datavase each time?) If you just need the grou pname, could you simply put the group name in session? May or may not work depending on the flow of your app, but it would be a nice, simple solution if it'll work... just remember to clear it out at an appropriate time. The other option that comes to mind immediately is indeed to use Javascript... seems like all you'd need is a form with two hidden fields, groupName and value... onChange of the select, populate those two fields and submit() the form. You'd then have both pieces of information to render your detail page. Or maybe I don't understand the problem? Frank [EMAIL PROTECTED] wrote: I am sure there is a slick way to do this, but it escapes me at the moment. I have a Select Box that I am populating with the html:options tag The result is: select name=cmbGroup id=groupList option value=jk12341Group 1/option option value=34t1fv1Group 2/option option value=32fq21Group 3/option ... /select I need the value for DAO actions performed from the search which will return a detail bean for display on an output JSP. On the output JSP I need to Display the Group Name that I selected from the input. My Form holds the group id and a field for the group name. The options that I can see are: 1. Requery the Database for the output page to retrieve the name given I have the key. This would work, but seems like a lot of overhead to go to the database each time. 2. Create a delimited value (ie option value=jk12341, Group 1Group 1/option) and use the String Split to get the value and label. (I am leaning toward this) 3. use javascript to update the field each time the select changes. The problem with this is that the select box can be very large based on the users selections on previous entries. 4. Store the Value Label list in the session (Don't like this at all because the volume of users that will use this application). Any other suggestions? -- Frank W. Zammetti Founder and Chief Software Architect Omnytex Technologies http://www.omnytex.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
