ASP.NET - How to hide repeater? - Asked By saranya on 08-Jan-13 02:49 AM

Hi frndz!

iam doing project in asp.net 4.0. in my project iam using 2 grid to bind.Iam using repeater to bind

1.binddata_course()
2.binddata_lesson()

iam using dropdownlist.

1.course
2.lesson

when iam select course the selected value is 1,when iam select lesson the selected value is 2.

private void ddldetails_SelectedIndexChanged(object sender, EventArgs e)
      {
        if (ddldetails.SelectedValue == "1")
        {
          binddata_course();
        }

        else
        {
          binddata_lesson();
        }
      }



so in rptcertificate_ItemDataBound()

in repeater in aspx page iam design common

 <ItemTemplate>
       <tr>  
                       
             <td  class="tbldHdrNew" align="left" runat="server" id="tdusername" >
                <asp:Label ID="lbluser" runat="server" CssClass="repeater_label" Text='<%# Eval("UserName") %>'></asp:Label>               
              </td>
             <td  class="tbldHdrNew" align="left" runat="server" id="tdcoursename" >
                <asp:Label ID="lblcourse" runat="server" CssClass="repeater_label" Text='<%# Eval("CourseName") %>'></asp:Label>
                </td>
               
                <td  class="tbldHdrNew" align="left" runat="server" id="tdlessonname" >
                <asp:Label ID="lbllesson" runat="server" CssClass="repeater_label" Text='<%# Eval("LessonName") %>'></asp:Label>
             
              </td>  
              <td  align="left" class="tbldHdrNew">
                <asp:Label ID="lblLessonID" runat="server" Visible="false" Text='<%# Eval("LessonID") %>'></asp:Label>                
                <asp:Button CommandName="View" ID="btnview" runat="server" ToolTip="View Certificate"  CssClass="View"/>
              </td>
               </tr>
       </ItemTemplate>


when i select course in dropdown

it showing error in <td  class="tbldHdrNew" align="left" runat="server" id="tdlessonname" >
                <asp:Label ID="lbllesson" runat="server" CssClass="repeater_label" Text='<%# Eval("LessonName") %>'></asp:Label>
             
              </td> 


bcoz lessonname not in binddata_course so its showing error. so how to hide? urgent tell me frndz!

Hello Friend,
              You have to make logic in the Item data bound of repeater control where firstly you have to find the label named 'lbllesson' the make a if condition where you will specilfy that if you find  "LessonName" then it will print lesson name otherwise it will leave and one more thing, remove Text='<%# Eval("LessonName") %>' from :-

<asp:Label ID="lbllesson" runat="server" CssClass="repeater_label" Text='<%# Eval("LessonName") %>'></asp:Label>

because you are printing it in runtime.

ya k Thank u