DataList问题，一个按钮列，一个Label，分别绑定不同的列，点击按钮如何取得Label的值

[FlowerJunjie]

以下是页面绑定的代码

<ItemTemplate>
<FONT face="宋体"> 
<asp:Image id="Image1" runat="server" ImageUrl="images/SizePlus.gif"></asp:Image> 
<asp:LinkButton id="LinkButton1" runat="server" CommandName="Select">
<%# (DataBinder.Eval(Container.DataItem, "addtypename")) %>
</asp:LinkButton>
<asp:Label id="Label2" runat="server" Width="32px">
<%# (DataBinder.Eval(Container.DataItem, "addtypeid")) %>
</asp:Label></FONT>
</ItemTemplate>
我在DataList1_ItemCommand()事件中
Label tb = (Label)e.Item.FindControl("Label2");
string tname=tb.Text
取出的值为空
各位看一下

[wuxing2006]

<asp:LinkButton id="LinkButton1" runat="server" CommandName="Select">
<%# (DataBinder.Eval(Container.DataItem, "addtypename")) %>
</asp:LinkButton>
这样不报错？

[FlowerJunjie]

没人知道么？

[dinoLgrace]

你数据库绑定的代码呢？发出来看下

[shadow841112]

为空说明FindControl已经找到了，应该是其他地方的问题

[hegang888888888]

FindControl

[FlowerJunjie]

这是数据库绑定的代码，
private void bindList()
{
SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["conn"]);
conn.Open();
//SqlCommand cmd = new SqlCommand("select addtype from addtype where userid='"+Session["userid"]+"'",conn);

SqlDataAdapter da = new SqlDataAdapter("select * from addtype where userid='"+Session["userid"]+"'",conn);
DataSet ds = new DataSet();
da.Fill(ds,"tmpTable");
this.DataList1.DataSource=ds.Tables["tmpTable"].DefaultView;
this.DataList1.DataBind();


}

[FlowerJunjie]

能显示出数据说明绑定没问题啊！

[chouer523]

ding

[dinoLgrace]

就你发的这些代码不能说明你的目的啊，不是点击button才显示吗？是不是没初始化？或者要触法你的button事件才行？botton方法呢？

[confei]

简单方法

<asp:datalist id="zplist" runat="server" RepeatColumns="4" RepeatDirection="Horizontal" Width="90%" >
<ItemTemplate>  
<div style="MARGIN-LEFT: 15px">
<table border=0 bgcolor=WhiteSmoke>
<tr>
<td colspan=2 align=center valign=bottom height=150 bgcolor=White>
<a target=_blank href="../lib/preview.aspx?Gid=<%=Gid%>&zid=<%# DataBinder.Eval(Container.DataItem,"id")%>">
<img id='image<%# DataBinder.Eval(Container.DataItem,"id")%>' onerror="ChangeImg('image<%# DataBinder.Eval(Container.DataItem,"id")%>')" border=0 src='<%# DataBinder.Eval(Container.DataItem,"mapth")%>'>
</a>
</td>
</tr>
<tr>
<td valign="top">编号:</td>
<td valign="top"><%# DataBinder.Eval(Container.DataItem,"id")%></td>
</tr>
</table>
<asp:Label id="tishi" Visible="False" ForeColor="#ff9900" runat="server"></asp:Label>
</div>
</ItemTemplate>
</asp:datalist></td>







Dim i As Integer
Dim nStep As Integer = 5
Dim nStart, nEnd As Integer
Dim db As New DataBase
Dim dt As DataTable
With db
.ClearCommandParameters()
.AddComandParameters("@rid", ridd.Text.Trim(), SqlDbType.Int, 4)
dt = .GetDataTable("usp_quanlir_tupian", CommandType.StoredProcedure)
End With
dt.Columns.Add("mapth")
Dim pd As PagedDataSource = New PagedDataSource

For sum As Integer = 0 To dt.Rows.Count - 1
dt.Rows(sum)("v_s") = dt.Rows(sum)("v_s").ToString().TrimEnd("/")
Dim str As String = dt.Rows(sum)("v_s").ToString() + "/" + dt.Rows(sum)("qikan").ToString() + "/" + dt.Rows(sum)("qihao").ToString() + "/" + dt.Rows(sum)("id").ToString() + ".t.jpg"
dt.Rows(sum)("mapth") = str
Next
'----------------------------------------------------------------------------------------------

pd.DataSource = dt.DefaultView

pd.AllowPaging = True

pd.PageSize = 12
Dim CurPage As Integer
If Request.QueryString("Page") = Nothing Then
CurPage = 1
Else
CurPage = Convert.ToInt32(Request.QueryString("Page"))
End If
pd.CurrentPageIndex = CurPage - 1

If Not pd.IsFirstPage Then
'shang.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage - 1) + "&rid=" + ridd.Text.Trim()
shangy = "<a href='" + Request.CurrentExecutionFilePath + "?hgt=1&Page=" + Convert.ToString(CurPage - 1) + "&rid=" + ridd.Text.Trim() + "&person=" & Server.UrlEncode(Request.QueryString("person")) & "'>上一页</a>"
sPS = "<a href='" + Request.CurrentExecutionFilePath + "?hgt=1&Page=1&rid=" + ridd.Text.Trim() + "&person=" & Server.UrlEncode(Request.QueryString("person")) & "'>首页</a>"
End If
If Not pd.IsLastPage Then
'xia.NavigateUrl = Request.CurrentExecutionFilePath + "?Page=" + Convert.ToString(CurPage + 1) + "&rid=" + ridd.Text.Trim()
xiay = "<a href='" + Request.CurrentExecutionFilePath + "?hgt=1&Page=" + Convert.ToString(CurPage + 1) + "&rid=" + ridd.Text.Trim() + "&person=" & Server.UrlEncode(Request.QueryString("person")) & "'>下一页</a>"
sPE = "<a href='" + Request.CurrentExecutionFilePath + "?hgt=1&Page=" + Convert.ToString(pd.PageCount) + "&rid=" + ridd.Text.Trim() + "&person=" & Server.UrlEncode(Request.QueryString("person")) & "'>末页</a>"
End If
sPage = ""
nStart = Math.Max(1, CurPage - nStep)
nEnd = Math.Min(CurPage + nStep, pd.PageCount)
For i = nStart To nEnd
If i = CurPage Then
sPage &= " " & i & " "
Else
sPage &= " <a href='" & Request.CurrentExecutionFilePath & "?hgt=1&page=" & i.ToString & "&rid=" & ridd.Text.Trim & "&person=" & Server.UrlEncode(Request.QueryString("person")) & "'>[" & i & "]</a> "
End If
Next
'-----------------------------------------------------------------------------------
dq = "当前是第" + CStr(CInt(pd.CurrentPageIndex) + 1) + "页"
pcount = "共" + CStr(pd.PageCount) + "页"
result = "相关图片" + CStr(pd.DataSourceCount) + "个"
zplist.DataSource = pd
zplist.DataBind()

[FlowerJunjie]

dinoLgrace(淡泊以明志，宁静而致远) ( ) 信誉：100 Blog 2007-03-09 09:36:09 得分: 0


就你发的这些代码不能说明你的目的啊，不是点击button才显示吗？是不是没初始化？或者要触法你的button事件才行？botton方法呢？

-----------------------------------------
button是在dataList的ItemTemplate中的。button方法该怎么写啊；

[FlowerJunjie]

问题解决了
页面绑定代码的问题
<asp:LinkButton id="LinkButton1" runat="server" CommandName="Select">
<%# (DataBinder.Eval(Container.DataItem, "addtypename")) %>
</asp:LinkButton>
应改为
<asp:LinkButton id="LinkButton1" runat="server" CommandName="Select" Text='<%# (DataBinder.Eval(Container.DataItem, "addtypename")) %>'>

[FlowerJunjie]

Label同理！

谢谢大家

[FlowerJunjie]

不报错，而且能显示出数据。呵呵

[a8511007]

Label tb = (Label)e.Item.FindControl( "Label2 ");
改成
Label tb = (Label)e.Item[0].FindControl( "Label2 ");