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Posted to user@struts.apache.org by Vaibhav Patil <V....@zensar.com> on 2001/07/09 14:02:33 UTC
Iterate tag update
Hi,
I am using logic:iterate tag as follows to print a table with text
boxes.
<logic:iterate id="product" name="productSearchForm"
property="productList">
<tr>
<td align="left">
<bean:write name="product" property="productNumber"
filter="true"/>
</td>
<td align="center">
<html:text name="product" property="quantity" size="3"/>
</td>
</tr>
</logic:iterate>
I have a array of objets(Product) in productList. When I update the quantity
and submit the page, it does not update the information into the
productList.
What might be the problem???
Vaibhav
Re: Iterate tag update
Posted by suhas <su...@techmas.hcltech.com>.
Do u have setter methods in the Product class like - setQuantity(int qty)
???
Also U need to have indexed iterate tag written by Dave Hey . So u can use
<html:text name="product" property="quantity" size="3" index= "true"/>
Here is the ActionForm
public Product [ ] getProductList( ) {
return this.productList;
}
public setProductList(Product [ ] productList) {
this.productList = productList ;
}
public Product getProductList(int index) {
return (Product)productList[index];
}
Remember have proper setter methods in the Product class like setQuantity
int qty )
Suahs
----- Original Message -----
From: Vaibhav Patil <V....@zensar.com>
To: <st...@jakarta.apache.org>
Sent: Monday, July 09, 2001 1:02 PM
Subject: Iterate tag update
> Hi,
> I am using logic:iterate tag as follows to print a table with text
> boxes.
>
> <logic:iterate id="product" name="productSearchForm"
> property="productList">
> <tr>
> <td align="left">
> <bean:write name="product" property="productNumber"
> filter="true"/>
> </td>
> <td align="center">
> <html:text name="product" property="quantity" size="3"/>
> </td>
> </tr>
> </logic:iterate>
>
> I have a array of objets(Product) in productList. When I update the
quantity
> and submit the page, it does not update the information into the
> productList.
> What might be the problem???
>
> Vaibhav
Re: Iterate tag update / expalin/why what form bean!!
Posted by Chuck Amadi <ch...@breconbeacons.org>.
Hi, i am currently reading up on delegating as much processing as possible to
javabeans components hence i have come across various beans regarding html forms
ie <html:select,html:option, logic:iterate etc etc . Pls could anyone explain or
advise were one can get an understanding on selection to the desired form bean.
Cheers chuck
Gregor Rayman wrote:
> The problem is, the generated names of the HTML form elements do not
> correspond to the names of properties of your ActionForm.
>
> Here a sample, how this can be done:
>
> <logic:iterate name="myForm" property="elements" id="element" indexId="i"
> type="de.grayman.test.struts.MyElement">
> <tr>
> <td>
> <html:checkbox property='<%= "element[" + i + "].member" %>' />
> <html:hidden property='<%= "element[" + i + "].elementName" %>' />
> </td>
> <td><bean:write name="element" property="elementName" /></td>
> <td><bean:write name="element" property="elementDescription" /></td>
> </tr>
> </logic:iterate>
>
> In the MyForm class, there have to be two properties (getter methods):
>
> 1) the collection "elements"
> 2) indexed property "element"
>
> private Vector elements;
>
> public Collection getElements() {
> return this.elements;
> }
>
> public MyElement getElement(int i) {
> while (getGroups().size() <= i) {
> this.element.add(new MyElement());
> }
> return (MyElement) this.elements.get(i);
> }
>
> Note: Class MyElement has read/write properties member, elementName,
> elementDescription, ...
>
> Note: The getElement(int i) fills the Vector with empty elements, if they do
> not exist.
> In this way, the form will be filled correcly from the submitted HTML-Form. Of
> course,
> you could use another approach, e.h. HashTable or an Array instead of Vector.
>
> --
> gR
>
> ----- Original Message -----
> From: "Vaibhav Patil" <V....@zensar.com>
> To: <st...@jakarta.apache.org>
> Sent: Monday, July 09, 2001 2:02 PM
> Subject: Iterate tag update
>
> > Hi,
> > I am using logic:iterate tag as follows to print a table with text
> > boxes.
> >
> > <logic:iterate id="product" name="productSearchForm"
> > property="productList">
> > <tr>
> > <td align="left">
> > <bean:write name="product" property="productNumber"
> > filter="true"/>
> > </td>
> > <td align="center">
> > <html:text name="product" property="quantity" size="3"/>
> > </td>
> > </tr>
> > </logic:iterate>
> >
> > I have a array of objets(Product) in productList. When I update the quantity
> > and submit the page, it does not update the information into the
> > productList.
> > What might be the problem???
> >
> > Vaibhav
> >
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Re: Iterate tag update
Posted by Gregor Rayman <gr...@gmx.net>.
The problem is, the generated names of the HTML form elements do not
correspond to the names of properties of your ActionForm.
Here a sample, how this can be done:
<logic:iterate name="myForm" property="elements" id="element" indexId="i"
type="de.grayman.test.struts.MyElement">
<tr>
<td>
<html:checkbox property='<%= "element[" + i + "].member" %>' />
<html:hidden property='<%= "element[" + i + "].elementName" %>' />
</td>
<td><bean:write name="element" property="elementName" /></td>
<td><bean:write name="element" property="elementDescription" /></td>
</tr>
</logic:iterate>
In the MyForm class, there have to be two properties (getter methods):
1) the collection "elements"
2) indexed property "element"
private Vector elements;
public Collection getElements() {
return this.elements;
}
public MyElement getElement(int i) {
while (getGroups().size() <= i) {
this.element.add(new MyElement());
}
return (MyElement) this.elements.get(i);
}
Note: Class MyElement has read/write properties member, elementName,
elementDescription, ...
Note: The getElement(int i) fills the Vector with empty elements, if they do
not exist.
In this way, the form will be filled correcly from the submitted HTML-Form. Of
course,
you could use another approach, e.h. HashTable or an Array instead of Vector.
--
gR
----- Original Message -----
From: "Vaibhav Patil" <V....@zensar.com>
To: <st...@jakarta.apache.org>
Sent: Monday, July 09, 2001 2:02 PM
Subject: Iterate tag update
> Hi,
> I am using logic:iterate tag as follows to print a table with text
> boxes.
>
> <logic:iterate id="product" name="productSearchForm"
> property="productList">
> <tr>
> <td align="left">
> <bean:write name="product" property="productNumber"
> filter="true"/>
> </td>
> <td align="center">
> <html:text name="product" property="quantity" size="3"/>
> </td>
> </tr>
> </logic:iterate>
>
> I have a array of objets(Product) in productList. When I update the quantity
> and submit the page, it does not update the information into the
> productList.
> What might be the problem???
>
> Vaibhav
>