C# 访问中继器内的控件
假设我有以下几点:C# 访问中继器内的控件,c#,asp.net,user-controls,sitecore,C#,Asp.net,User Controls,Sitecore,假设我有以下几点: <asp:Repeater ID="repSubItems" runat="server" DataSource="<%# SubItems %>" > <ItemTemplate> <sc:FieldRenderer ID="FieldRenderer1" FieldName="BlurbSpot_Content_SubHeading" runat="ser
<asp:Repeater ID="repSubItems" runat="server" DataSource="<%# SubItems %>" >
<ItemTemplate>
<sc:FieldRenderer ID="FieldRenderer1"
FieldName="BlurbSpot_Content_SubHeading"
runat="server"
Item="<%# Container.DataItem as Sitecore.Data.Items.Item %>" />
</ItemTemplate>
</asp:Repeater>
但是在
中继器中
我无法访问FieldRender1
控件。您需要处理repSubItems中继器的ItemDataBound
事件。例如:
protected void repSubItems_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
var fieldRenderer1 = e.Item.FindControl("FieldRenderer1") as Sitecore.Web.UI.WebControls.FieldRenderer;
if (fieldRenderer1 != null)
{
fieldRenderer1.Style["Width"] = MyCoolWidth;
}
}
}
您需要在中继器
中找到要查找的行,然后找到控件。下面是一个可以对中继器中的所有项目执行此操作的示例:
// repeater item
foreach (Control cr in repSubItems.Controls)
{
// assuming this is your templated control name and not the final output name
FieldRenderer founcControl = cr.FindControl("FieldRenderer1") as FieldRenderer;
founcControl .Style["Width"] = MyCoolWidth;
}
要做到这一点,更好的方法是为您的控件实现OnDataBinding
,因为这样您就无需搜索:
<sc:FieldRenderer ID="FieldRenderer1" FieldName="BlurbSpot_Content_SubHeading"
runat="server" Item="<%# Container.DataItem as Sitecore.Data.Items.Item %>"
OnDataBinding="FieldRenderer1_DataBinding" />
protected void FieldRenderer1_DataBinding(object sender, System.EventArgs e)
{
FieldRenderer rend = (FieldRenderer)(sender);
// you can do whatever you want to rend at this point and it is scoped to ONLY
// the control so you never have to search for it.
rend.Style["Width"] = MyCoolWidth;
}
受保护的void fieldrender1\u数据绑定(对象发送方,System.EventArgs e)
{
FieldRender rend=(FieldRenderer)(发送方);
//你可以在这一点上做任何你想撕裂的事情,它的范围仅限于
//控件,这样您就不必搜索它了。
格式样式[“宽度”]=MyColWidth;
}
+1。您还需要向中继器本身注册repSubItems\u ItemDataBound
。OnDataBinding
控件是一种更好的方法。不依赖于FindControl
或命名,并且您的代码的作用域为该控件,因此您可以随意移动它。不知道OnDataBinding
的功能--感谢您的提示@Mark Ursino这是最好的方法,但由于某些原因很少使用。我认为在ASP.NET初期,所有的示例都围绕着ItemDataBound
展开,因此搜索和查找变得非常容易,尽管从一开始就有了更好的方法。
<sc:FieldRenderer ID="FieldRenderer1" FieldName="BlurbSpot_Content_SubHeading"
runat="server" Item="<%# Container.DataItem as Sitecore.Data.Items.Item %>"
OnDataBinding="FieldRenderer1_DataBinding" />
protected void FieldRenderer1_DataBinding(object sender, System.EventArgs e)
{
FieldRenderer rend = (FieldRenderer)(sender);
// you can do whatever you want to rend at this point and it is scoped to ONLY
// the control so you never have to search for it.
rend.Style["Width"] = MyCoolWidth;
}