Eval()、XPath() 和 Bind() 这类数据绑定方法只能在数据绑定控件的上下文中使用代码如下,请大家不吝赐教!
if (Eval("Title").Equals("Single"))
{
for (int i = 0; i <= 8;i++ )
{
if (!Eval("Title"+i).Equals(""))
{
Response.Write("<input type='radio' name='VoteOption' value='"+ i + "'/>"+ Eval("Select"+i)+"<br>");
}
else
{
break;
}
}
}
else
{
for (int i = 0; i <= 8; i++)
{ if (!Eval("Title" + i).Equals(""))
{
Response.Write("<input type='checkbox' name='VoteOption' value=" + i + "/>" + Eval("Select" + i) + "<br>");
}
else
{
break;
}
}
}
if (Eval("Title").Equals("Single"))
{
for (int i = 0; i <= 8;i++ )
{
if (!Eval("Title"+i).Equals(""))
{
Response.Write("<input type='radio' name='VoteOption' value='"+ i + "'/>"+ Eval("Select"+i)+"<br>");
}
else
{
break;
}
}
}
else
{
for (int i = 0; i <= 8; i++)
{ if (!Eval("Title" + i).Equals(""))
{
Response.Write("<input type='checkbox' name='VoteOption' value=" + i + "/>" + Eval("Select" + i) + "<br>");
}
else
{
break;
}
}
}
-------------
比如说:
Page_Load...
{
this.GridView1.DataSource = dataSourceTable;//假设获得一个dataTable的数据源
this.GridView1.DataBind();
}现在就可以在aspx页面中使用
Eval()或者Bind()来绑定这个Table里面的某个字段了。Xpath主要针对的是XML的数据源。
如SelectedValue='<%# DataBinder.Eval(Container.DataItem,"fieldname")%>'
protected void gv_RowDataBound(object sender, GridViewRowEventArgs e)
{
if ((DropDownList)e.Row.FindControl("") != null)
{
((DropDownList)e.Row.FindControl("")).SelectedValue ="";
}
}
((DropDownList)gv.Rows[e.RowIndex].FindControl("")).SelectedValue.Trim();
<asp:Repeater ID="rpNews" runat="server">
<ItemTemplate>
<ul id="pagelist">
<li><a href="NewsShow.aspx?viewid=<%#Eval("newsid") %>" target="_blank">
<span class="lbt"><%#Eval("newstheme")%></span>
<span class="ldt"><%#Convert.ToDateTime(Eval("addtime")).ToString("yyyy-MM-dd")%></span></a></li>
</ul>
</ItemTemplate>
</asp:Repeater>