Problem in struts layout's datagrid.

[sachin yadav]

I am using a datagrid of struts layout in my JSP the code is :

 
<layout:grid  width="80%" align="center" borderSpacing="1" styleClass="tablegrid">
<layout :mrgreen: atagrid  property="dataGrid" styleClass="blackbig" model="datagrid" multipleSelectionAllowed="false"  >
                            <layout :mrgreen: atagridColumn title="promoCode.dataGrid.title.PromoName" property="promoName" />
                            <layout :mrgreen: atagridColumn title="promoCode.dataGrid.title.PromoCode" property="promoCode" />
                            <layout :mrgreen: atagridSelect title="promoCode.dataGrid.title.DiscType" property="disType" >
                            <layout :-o	 ption value="P" key="promoCode.dataGrid.DiscType.Key.P"></layout :-o	 ption>
                            <layout :-o	 ption value="A" key="promoCode.dataGrid.DiscType.Key.A"></layout :-o	 ption>
                            </layout :mrgreen: atagridSelect>
                            <layout :mrgreen: atagridColumn title="promoCode.dataGrid.title.DiscAmount" property="disValue" />
                            <layout :mrgreen: atagridSelect title="promoCode.dataGrid.title.Status" property="status" >
                            <layout :-o	 ption value="E" key="promoCode.dataGrid.Status.Key.E"></layout :-o	 ption>
                            <layout :-o	 ption value="D" key="promoCode.dataGrid.Status.Key.D"></layout :-o	 ption>
                            </layout :mrgreen: atagridSelect>                            
                            <layout :mrgreen: atagridSelect title="promoCode.dataGrid.title.UseOnce" property="useOnceFlag">
                            <layout :-o	 ption value="Y" key="promoCode.dataGrid.UseOnce.Key.Y"></layout :-o	 ption>
                            <layout :-o	 ption value="N" key="promoCode.dataGrid.UseOnce.Key.N"></layout :-o	 ption>
                            </layout :mrgreen: atagridSelect>
                            <layout :mrgreen: atagridColumn title="promoCode.dataGrid.title.ValidFrom" property="validFrom" />
                            <layout :mrgreen: atagridColumn title="promoCode.dataGrid.title.ValidTo" property="validTo" />                                                        </layout :mrgreen: atagrid>
</layout:grid>

I have a pojo (for hibernate) and in action form i just simply get/set the datagrid.

My action form is :

    
 
private Datagrid dataGrid = null;
 
public Datagrid getDataGrid() {
return dataGrid;
}
 
public void setDataGrid(Datagrid dataGrid) {
this.dataGrid = dataGrid;
}

The getData operation from hibernate workes well and i am getting all the data from hibernate but when i try to insert data i got this error :

java.lang.IllegalArgumentException: Cannot invoke com.igt.ultimatefares.persistance.PromoDiskMaster.setValidFrom - argument type mismatch
org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:1778)
org.apache.commons.beanutils.PropertyUtilsBean.setSimpleProperty(PropertyUtilsBean.java:1759)
org.apache.commons.beanutils.PropertyUtilsBean.setNestedProperty(PropertyUtilsBean.java:1648)
org.apache.commons.beanutils.PropertyUtilsBean.setProperty(PropertyUtilsBean.java:1677)
org.apache.commons.beanutils.PropertyUtils.setProperty(PropertyUtils.java:559)
fr.improve.struts.taglib.layout.datagrid.DatagridImpl.set(DatagridImpl.java:268)
org.apache.commons.beanutils.PropertyUtilsBean.setIndexedProperty(PropertyUtilsBean.java:1361)
org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:1016)
org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:811)
org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:298)
org.apache.struts.util.RequestUtils.populate(RequestUtils.java:493)
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:805)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:203)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
 

My pojo is:

     private String promoCode;
     private String disType;
     private Double disValue;
     private Date validFrom;
     private Date validTo;
     private String status;
     private String useOnceFlag;
     private String promoName;
 

      
    // Property accessors
 
    public String getPromoCode() {
        return this.promoCode;
    }
    
    public void setPromoCode(String promoCode) {
        this.promoCode = promoCode;
    }
 
    public String getDisType() {
        return this.disType;
    }
    
    public void setDisType(String disType) {
        this.disType = disType;
    }
 
    public Double getDisValue() {
        return this.disValue;
    }
    
    public void setDisValue(Double disValue) {
        this.disValue = disValue;
    }
 
    public Date getValidFrom() {
        return this.validFrom;
    }
    
    public void setValidFrom(Date validFrom) {
        this.validFrom = validFrom;
    }
 
    public Date getValidTo() {
        return this.validTo;
    }
    
    public void setValidTo(Date validTo) {
        this.validTo = validTo;
    }
 
    public String getStatus() {
        return this.status;
    }
    
    public void setStatus(String status) {
        this.status = status;
    }
 
    public String getUseOnceFlag() {
        return this.useOnceFlag;
    }
    
    public void setUseOnceFlag(String useOnceFlag) {
        this.useOnceFlag = useOnceFlag;
    }
 
    public String getPromoName() {
        return this.promoName;
    }
    
    public void setPromoName(String promoName) {
        this.promoName = promoName;
    }
   
 

Can someone suggest me what's wrong?