设置数据表中选项列表的默认值

发布于 2024-09-09 04:12:43 字数 854 浏览 3 评论 0原文

我正在尝试在数据表中创建动态选择列表。我可以使用单个选项列表设置默认值，但当有多个选项列表时则不能。我还需要能够在任何行上存储更改后的值，希望将其绑定到列表中的某个变量。

为了实现这一点，我在我正在使用的对象（称为 Vendor）上创建了一个新字段，称为“selected_vendor__c”：

<apex:column headerValue="Vendor">

 <apex:selectList value="{!i.selected_vendor__c}" size="1" required="true" >
 <apex:selectOptions value="{!VendorList}"/>
 </apex:selectList>

然后是控制器：

           public List<selectOption> VendorList {get {
    List<selectOption> myVendorList = new List<selectOption>();
    for (Vendor__c vend : [select Name,id from Vendor__c])
        myVendorList.add(new selectOption(vend.id, vend.name));
    return myVendorList;
    }
    private set;
}

我遇到的问题是选项列表中的值始终是列表中的第一个选项，而不是我尝试动态设置它的值。我希望保存时将其绑定到“{!i.selected_vendor__c}”，但我无法将其设置为默认值。

原文

I am trying to create a dynamic picklist in a datatable. I can set the default value with a single picklist, but not when there are multiple ones. I also need to be able to store the value of whatever it is changed to on any row, which will hopefully be bound to some variable in a list.

To accomplish this I created a new field on the object I'm using (called Vendor), called "selected_vendor__c":

<apex:column headerValue="Vendor">

 <apex:selectList value="{!i.selected_vendor__c}" size="1" required="true" >
 <apex:selectOptions value="{!VendorList}"/>
 </apex:selectList>

And then here is the controller:

           public List<selectOption> VendorList {get {
    List<selectOption> myVendorList = new List<selectOption>();
    for (Vendor__c vend : [select Name,id from Vendor__c])
        myVendorList.add(new selectOption(vend.id, vend.name));
    return myVendorList;
    }
    private set;
}

The problem I'm having is that the value in the picklist is always the first option from the list, not what I try to set it to dynamically. I'm hoping that it will be bound to "{!i.selected_vendor__c}" when saving, but I can't get it to be set to a default.

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