sql server - Error while using label to query database -


i'm trying display rows in gridview match id cast label. error "input string not in correct format" when run query.

private sub bindgrid()         dim constring string = configurationmanager.connectionstrings("connstr").connectionstring         using con new sqlconnection(constring)             using cmd new sqlcommand("select * [table] id=@label6")                 using sda new sqldataadapter()                     cmd.connection = con                     cmd.parameters.add("@label6", label.text)                     sda.selectcommand = cmd                     using dt new datatable()                         sda.fill(dt)                         gridview2.datasource = dt                         gridview2.databind()                     end using                 end using         end using     end using end sub

here code label:

 public sub linkbutton1_click(sender object, e eventargs)     dim lnk linkbutton = directcast(sender, linkbutton)     label6.text = lnk.text     linkbutton1_modalpopupextender.show() end sub

what doing wrong? id int.

the aspx code

 <asp:linkbutton id="lnkdummy" runat="server"></asp:linkbutton> <cc1:modalpopupextender id="linkbutton1_modalpopupextender" runat="server" enabled="true" targetcontrolid="lnkdummy" popupcontrolid="panel1"> </cc1:modalpopupextender>  <asp:panel id="panel1" runat="server" height="164px" width="284px" backcolor="slategray" ><br /><br />        <center><asp:label id="label6" runat="server" text="label"></asp:label><br />           <asp:gridview id="gridview2" runat="server" autogeneratecolumns="false"      pagesize="2" allowpaging="true">               <columns>              <asp:boundfield datafield="status" headertext="status" sortexpression="status" />             <asp:boundfield datafield="comments" headertext="comments" sortexpression="comments" />             <asp:boundfield datafield="processed_by" headertext="processed_by" sortexpression="processed_by" />          </columns>           </asp:gridview>       <asp:button id="button3" runat="server" cssclass="btn btn-default btn-md" text="close"/></center> </asp:panel>

there no overload of add takes parameter name , value. change line:

cmd.parameters.add("@label6", label.text)

to this:

cmd.parameters.add("@label6", sqldbtype.int).value = label.text

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