c# - Asp.net Chart doesn't show series name -

i have asp.net chart control using objectdatasource.everything ok.but couldn't show series name.

    <asp:chart id="chartpaun" runat="server"  height="150px"  cssclass="border"  width="525px">      <series>         <asp:series  name="1puan" yvaluetype="int32" labelborderdashstyle="notset"               shadowoffset="0" isvalueshownaslabel="true" color="#d74949" charttype="bar"              font="microsoft sans serif, 8pt, style=bold" legendtext="dsfsdf">          </asp:series>         <asp:series  name="2puan" yvaluetype="int32" labelborderdashstyle="notset"               shadowoffset="0" isvalueshownaslabel="true" color="#ff8b5a" charttype="bar"              font="microsoft sans serif, 8pt, style=bold">          </asp:series>         <asp:series  name="3puan" yvaluetype="int32" labelborderdashstyle="notset"               shadowoffset="0" isvalueshownaslabel="true" color="#ffb234" charttype="bar"              font="microsoft sans serif, 8pt, style=bold">          </asp:series>         <asp:series  name="4puan" yvaluetype="int32" labelborderdashstyle="notset"               shadowoffset="0" isvalueshownaslabel="true" color="#a0db0d" charttype="bar"              font="microsoft sans serif, 8pt, style=bold">           </asp:series>         <asp:series  name="5puan" yvaluetype="int32" labelborderdashstyle="notset"               shadowoffset="0" isvalueshownaslabel="true" color="#9bda00" charttype="bar"              font="microsoft sans serif, 8pt, style=bold">          </asp:series>     </series>     <chartareas>         <asp:chartarea name="gosterimalan" alignmentorientation="all" alignmentstyle="axesview" area3dstyle-isclustered="true" area3dstyle-lightstyle="realistic">         <axisx linewidth="0" ismarginvisible="false" interval="1" enabled="true">           </axisx>           <position height="100" width="100" x="30" y="0" />  <area3dstyle isclustered="true" lightstyle="realistic"></area3dstyle> </asp:chartarea> </chartareas> </asp:chart> 

codebehind :

protected void page_load(object sender, eventargs e)     {         chartpaun.datasource = odspuandagilimi;         chartpaun.series["1puan"].yvaluemembers = "birpuan";         chartpaun.series["2puan"].yvaluemembers = "ikipuan";         chartpaun.series["3puan"].yvaluemembers = "ucpuan";         chartpaun.series["4puan"].yvaluemembers = "dortpuan";         chartpaun.series["5puan"].yvaluemembers = "bespuan";         chartpaun.series["4puan"].smartlabelstyle.enabled = true;         chartpaun.databind();         chartpaun.chartareas["gosterimalan"].axisy.majorgrid.enabled = false;         chartpaun.chartareas["gosterimalan"].axisx.majorgrid.enabled = false;         chartpaun.chartareas["gosterimalan"].axisy.linewidth = 0;         chartpaun.chartareas["gosterimalan"].axisx.linewidth = 0;         chartpaun.chartareas["gosterimalan"].axisx.labelstyle.enabled = false;         chartpaun.chartareas["gosterimalan"].axisy.labelstyle.enabled = false; } 

i didn't write objectdatasource codes. how can show series names ?and can set series name codebehind ?