<asp:DataList ID="adminsorts" runat="server" OnItemCommand="adminsorts_ItemCommand">
<ItemTemplate>
<ul>
<li>
<asp:Label ID="Label6" runat="server" Text='<%# Eval("sort") %>'></asp:Label> 
(<span style=" color:#ff0000"><asp:Label ID="Label7" runat="server" Text='<%# Eval("sortnum") %>'></asp:Label></span>篇)  |  
<asp:LinkButton ID="LinkButton1" runat="server" ToolTip='<%# Eval("sort") %>' ><img alt="编辑类型" src="./images/Edit.Gif" /></asp:LinkButton>  |  
<asp:LinkButton ID="LinkButton2" runat="server" ToolTip='<%# Eval("sort") %>'><img alt="删除类型" src="./images/delete.Gif" /></asp:LinkButton>
</li>
</ul>
</ItemTemplate>
</asp:DataList><div style="padding:0px 3px 5px 3px; line-height:5px; margin-top:3px;">
<asp:TextBox ID="addsort" runat="server" Width="80%"></asp:TextBox><br /><br />
<asp:Button ID="Button1" runat="server" Text="新增日志类别" CssClass="button2" OnClick="Button1_Click"/><br /><br /><br />
<asp:Label ID="Message" runat="server" Visible="False" Text="" ForeColor="Red"></asp:Label>
</div>
<asp:Label ID="Label6" runat="server" Text='<%# Eval("sort") %>'></asp:Label>的值 赋值给datalist外的<asp:TextBox ID="addsort" runat="server" Width="80%"></asp:TextBox>
Label tb = datalistname.FindControl("Labelname") as Label;
TextBoxname.Text=tb.Text;可是我运行就出错
提示:
异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。
{
Label lb = (Label)DataList1.Items[i].FindControl("Label6");
// Response.Write(lb.Text);
}
....直接找到那条记录序号index带入Label lb = (Label)DataList1.Items[index].FindControl("Label6");
点击那条记录的修改按钮就返回那条记录!!!
请问6楼的我应该怎么写?我接触ASP.NET不是很久,不太熟悉!!
最好是Linkbutton或ImageButton,因为可以放个小图标上去!!
protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
{
int index=e.Item.ItemIndex;
if (e.CommandName == "1")
{
Label lb = (Label)DataList1.Items[index].FindControl("Label6");
} if (e.CommandName == "2")
{
Label lb = (Label)DataList1.Items[index].FindControl("Label6");
}
.... }
你的LinkButton需设置CommandName属性
LinkButton lb = (LinkButton)DataList1.Items[index].FindControl("LinkButtonID");