我想检查代码 DataBinder.Eval(Container,“DataItem.Product.ImageName”)是否为空,然后设置src =“”
<asp:Image ID="ImgProd" src='<%# string.Format("~/ProductImages/{0}{1}",DataBinder.Eval(Container, "DataItem.Product.ImageName"),".jpg")%>' runat="server" Width="100px" Height="100px" />
如何做到这一点任何人都可以帮助我!
答案 0 :(得分:0)
我将imagecontrol映像在Repeater或类似的数据绑定控件中:
ASCX / ASPX:
<asp:Repeater ID="myrepeater" OnItemDataBound="MyrepeaterItemDataBound" runat="server">
<ItemTemplate>
...
<asp:Image ID="ImgProd" runat="server" Width="100px" Height="100px" />
</ItemTemplate>
</asp:Repeater>
代码隐藏:
protected void MyrepeaterItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
var myObject = (MyDataSourceObject)e.Item.DataItem;
var image = (Image)e.Item.FindControl("ImgProd");
if(!string.IsNullOrEmpty(myObject.Product.ImageName))
{
image.ImageUrl=string.Format("~/ProductImages/{0}.jpg", myObject.Product.ImageName );
}
}
}
答案 1 :(得分:0)
谢谢所有我得到了这个:)
<asp:Image ID="ImgProd" src='<%# DataBinder.Eval(Container, "DataItem.Product.ImageName")!=""?string.Format("../../ProductImages/{0}{1}",DataBinder.Eval(Container, "DataItem.Product.ImageName"),".jpg"):""%>' runat="server" Width="100px" Height="100px" />