我不确定这是否可能,但我试图在 VisualForce Apex 控制器类中获取动态创建的选择列表的值。
我正在使用下面的代码为特定对象(例如联系人)中的每个字段动态创建一个选择列表,但现在我不知道如何取回所选值。我尝试在构造函数中和单独的行(不在下面的代码示例中)设置每个值,但这似乎不起作用。
视觉力量页面:
<apex:dynamicComponent componentValue="{!contactPageBlockSection}" />
顶点控制器:
public Component.Apex.PageBlockSection GetContactPageBlockSection(string objectName)
{
Map<string, Schema.SObjectField> FieldMap;
FieldMap = Schema.SObjectType.Contact.fields.getMap();
Set<string> FieldSet = FieldMap.keySet();
List<string> FieldList = new List<string>();
FieldList.addAll(FieldSet);
FieldList.sort();
Component.Apex.PageBlockSection pbs = new Component.Apex.PageBlockSection(columns = 2);
for (string fieldName : FieldList)
{
Component.Apex.PageBlockSectionItem pbsi = new Component.Apex.PageBlockSectionItem();
Schema.DescribeFieldResult field = (FieldMap.get(fieldName)).getDescribe();
if (field.isUpdateable() && field.IsAccessible())
{
Schema.DisplayType dt = field.getType();
Component.Apex.OutputLabel lblText = new Component.Apex.OutputLabel(escape = false);
lblText.value = field.getLabel();
pbsi.childComponents.add(lblText);
Component.Apex.SelectList selList = new Component.Apex.SelectList(id = field.getName(), multiselect = false, size = 1, style = 'width:200px;');
if (dt == Schema.DisplayType.Integer || dt == Schema.DisplayType.Double || dt == Schema.DisplayType.Currency || dt == Schema.DisplayType.Percent)
{
AddSelectOption(selList, 'Keep highest value');
AddSelectOption(selList, 'Keep lowest value');
AddSelectOption(selList, 'Keep master value');
pbsi.childComponents.add(selList);
pbs.childComponents.add(pbsi);
}
}
}
return pbs;
}
private void AddSelectOption(Component.Apex.SelectList selList, string option)
{
Component.Apex.SelectOption selOption = new Component.Apex.SelectOption();
selOption.itemLabel = option;
selOption.itemValue = option;
selList.childComponents.add(selOption);
}
提前谢谢了