如何在ASP.NET DataList控件中设置控件的可见性？

我有两个asp：ImageButton。我想隐藏asp:ImageButton ID="ReceiveButton"每个表格单元格，只有如何在ASP.NET DataList控件中设置控件的可见性？

"<%#Eval("StatusID")=="123" %> "像这样

我不知道如何写在.aspx文件这个条件语句。我的代码是这样的。

<td> 
     <%#Eval("StatusID")%> 
</td> 
<td align="center"> 

    <asp:ImageButton ID="ReceiveButton" ToolTip="Receive/process this aproved PO" runat="server"  
    ImageUrl="~/DesktopModules/HBI_PurchaseOrder/Assets/Images/receive.png" 
    CommandName="CommandReceived" /> 

    <asp:ImageButton ID="DetailButton" ToolTip="View Approved PO" runat="server" 
    ImageUrl="~/DesktopModules/HBI_PurchaseOrder/Assets/Images/view.png" CommandName="PODetails" /> 

</td>

我想是这样，

<td> 
     <%#Eval("StatusID")%> 
</td> 
<td align="center"> 

    <%if (Eval("StatusID") == "123") { %> 
    <asp:ImageButton ID="ReceiveButton" ToolTip="Receive/process this aproved PO" runat="server"  
    ImageUrl="~/DesktopModules/HBI_PurchaseOrder/Assets/Images/receive.png" 
    CommandName="CommandReceived" /> 
    <%} %> 

    <asp:ImageButton ID="DetailButton" ToolTip="View Approved PO" runat="server" 
    ImageUrl="~/DesktopModules/HBI_PurchaseOrder/Assets/Images/view.png" CommandName="PODetails" /> 

</td>

但它不工作。如何正确设置条件？请帮帮我。

来源

2014-10-01 Jarich

您可以使用项目ItemDataBound事件的DataList

protected void DatalistID_ItemDataBound(object sender, DataListItemEventArgs e) 
{ 
    HiddenField hfStatusID= e.Item.FindControl("hfStatusID") as HiddenField; 
    ImageButton ReceiveButton= e.Item.FindControl("ReceiveButton") as ImageButton; 
    if (hfStatusID!= null && ReceiveButton!=null) 
    { 
     if (hfStatusID.Value == "123") // As per your Requirement 
     { 
      ReceiveButton.Visible= false; 
     } 
    } 
}

而且在.aspx页以一个HiddenField为：

<asp:HiddenField ID="hfStatusID" runat="server" Value='<%#Eval("StatusID")%>'/>

来源

2014-10-01 06:39:23 Pawan

它的工作原理！谢谢！ – Jarich 2014-10-01 06:46:44

很高兴帮助你:) – Pawan 2014-10-01 06:48:17

试试这个：

只需添加Visible='<%# Eval("StatusID").ToString().Trim()=="123" %>'到您的控制ReceiveButton物业。

<td> 
    <%#Eval("StatusID")%> 
</td> 
<td align="center"> 

<asp:ImageButton ID="ReceiveButton" ToolTip="Receive/process this aproved PO" runat="server"  
ImageUrl="~/DesktopModules/HBI_PurchaseOrder/Assets/Images/receive.png" 
CommandName="CommandReceived" Visible='<%# Eval("StatusID").ToString().Trim()=="123" %>' /> 

<asp:ImageButton ID="DetailButton" ToolTip="View Approved PO" runat="server" 
ImageUrl="~/DesktopModules/HBI_PurchaseOrder/Assets/Images/view.png" CommandName="PODetails" /> 

</td>

来源

2014-10-01 06:47:00

如何在ASP.NET DataList控件中设置控件的可见性？

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