how to set the value of a variable in repeater

i want call a function in aspx page in the repeater:

 <asp:Repeater ID="Rpt_M" runat="server">
    <HeaderTemplate></HeaderTemplate>
    <ItemTemplate>
    <a href="noktaDetay.aspx?id=1" ><%# Container.DataItem(1)%></a>
    <%Dim yorumid As Integer = Eval("DnAd")
      Dim yorumadet = yorumsay(yorumid)
      Dim yorumyaz As String = yorumadet + " adet yorum var"
      If yorumadet = 0 Then yorumyaz = "bla bla bla"%>
    <a href="yorumlar.aspx?id=1"><%=yorumyaz%></a>
    </ItemTemplate>
    <FooterTemplate></FooterTemplate>
    </asp:Repeater>

When I run the code I get this error:

Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.

How can I set the value for yorumid instead of using eval("DnAd")? Thank you for any help.

Best How To :

I think you should use the IIf operator

<a href="yorumlar.aspx?id=1"><%# IIf(yorumsay(Eval("DnAd")) = 0, "bla bla bla", yorumsay(Eval("DnAd")) + " adet yorum var")%></a>

It is called ternary operator in C#

<a href="yorumlar.aspx?id=1"><%# yorumsay(Eval("DnAd")) = 0 ? "bla bla bla" : yorumsay(Eval("DnAd")) + " adet yorum var")%></a>

I believe the yorumsay() method is available to your page already

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c#,asp.net,msbuild

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asp.net,vb.net,visual-studio-2012,converter

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vb.net,email

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c#,jquery,asp.net,scriptmanager,registerstartupscript

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asp.net,sql-server,parameter-passing

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jquery,vb.net,datetime

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vb.net,ftp

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vb.net,razor,model-view-controller,model

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c#,asp.net,sql-server,date,gridview-sorting

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c#,asp.net,asp.net-mvc,json.net

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c#,asp.net,asp.net-mvc,asp.net-mvc-4,razor

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javascript,c#,asp.net,webmethod,pagemethods

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c#,asp.net,asp.net-mvc

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c#,asp.net,asp.net-mvc,tinymce

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c#,jquery,asp.net,ajax,json

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asp.net,ssl,https

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asp.net,authentication

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vb.net,datagridview,datagrid

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vb.net,persian,sharpziplib

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asp.net,web-services,session

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arrays,vb.net

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asp.net,vb.net

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vb.net,multithreading,winforms

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html,css,asp.net

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arrays,vb.net,vbscript

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vb.net,linq

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sql,vb.net

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c#,.net,vb.net,winforms,custom-controls

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vb.net,vba,api,delete

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sql,asp.net,asp.net-mvc,database,entity-framework-6

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html,css,asp.net,checkbox

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xml,vb.net,linq-to-xml

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vb.net,linq,properties,interface

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vb.net,converter

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c#,asp.net,active-directory

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vb.net,listbox

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sql-server,vb.net,authentication,connection-string

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sql,asp.net,sql-server

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mysql,vb.net

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sql,vb.net,guid,hashcode

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