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
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
[解决办法]
你数据库绑定的代码呢？发出来看下
[解决办法]
为空说明FindControl已经找到了，应该是其他地方的问题
[解决办法]
FindControl
[解决办法]
ding
[解决办法]
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？
[解决办法]
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()
[解决办法]
<asp:LinkButton id= "LinkButton1 " runat= "server " CommandName= "Select ">
<%# (DataBinder.Eval(Container.DataItem, "addtypename ")) %>
</asp:LinkButton>
这样不报错？
