c# - How to bind Gridview update with Object Datasource parameters -

-

i have gridview shopping cart columns

id | productname | productprice | productquantity | totalprice

quantity editable column in gridview. need pass id , quantity datasource , how can that? beginner , have been working on hour , appreciated

.aspx file

   <asp:objectdatasource id="objectdatasource1" runat="server" selectmethod="getlistfromcart" typename="getfromcart" deletemethod="deletelistfromcart" updatemethod="updatelistfromcart"  >         <deleteparameters>             <asp:parameter name="id" type="int32" />         </deleteparameters>         <updateparameters>             <asp:parameter name="id" type="int32" />             <asp:parameter name="quantity" type="int32" />          </updateparameters>         </asp:objectdatasource>      <asp:gridview id="gridview1" runat="server" autogeneratecolumns="false" datasourceid="objectdatasource1" cellpadding="10" cellspacing="2" >         <columns>              <asp:commandfield showdeletebutton="true" showeditbutton="true" />             <asp:boundfield datafield="id" headertext="id" sortexpression="id" readonly="true" />             <asp:boundfield datafield="productname" headertext="productname" sortexpression="productname" readonly="true" />             <asp:boundfield datafield="productprice" headertext="productprice" sortexpression="productprice" readonly="true" />             <asp:templatefield headertext="quantity" sortexpression="quantity">                 <edititemtemplate>                     <asp:textbox id="textbox1" runat="server" text='<%# bind("quantity") %>'></asp:textbox>                 </edititemtemplate>                 <itemtemplate>                     <asp:label id="label1" runat="server" text='<%# bind("quantity") %>'></asp:label>                 </itemtemplate>             </asp:templatefield>             <asp:boundfield datafield="totalprice" headertext="totalprice" sortexpression="totalprice"  readonly="true" />         </columns>         <editrowstyle horizontalalign="center" />     </asp:gridview>

.cs file

public static void updatelistfromcart(int id,int quantity) {     using (sqlconnection conn = new sqlconnection(connection))     {         sqlcommand cmd = new sqlcommand("updatecartdetails", conn);         cmd.parameters.add("@id", sqldbtype.int).value = id;         cmd.parameters.add("@quantity", sqldbtype.int).value = quantity;         conn.open();         cmd.executenonquery();         conn.close();     }  }


Comments

Post a Comment

Popular posts from this blog

ios - Memory not freeing up after popping viewcontroller using ARC -

-
hi project arc based, using uinavigationcontroller make transition between viewcontroller. using profiler analyse happening behind scene memory. noticed when push viewcontroller allocate memory components , when pop not freeing allocated memory. since using arc unable implement dealloc or release component. have analysed in detail , there no memory leak in project. i not using strong property push viewcontroller. here how pushing viewcontroller. viewcontroller *obj = [[viewcontroller alloc] init]; [self.navigationcontroller pushviewcontroller:obj animated:no]; any clue whats going on? should free memory have consumed. please advise your description indicates have retain cycle, leads objects not being deallocated. typical source of retain cycles properties assigned loading nib files (usually declared iboutlet ). two strategies break them , release objects: declare property weak : @property (nonatomic, weak) iboutlet uilabel *statuslabel; set property nil in...
Read more

Django REST Framework perform_create: You cannot call `.save()` after accessing `serializer.data` -

-
i have following viewset: class artistprofileviewset(viewsets.modelviewset): queryset = artistprofile.objects.all() serializer_class = artistprofileserializer def perform_create(self, serializer): if serializer.is_valid(): serializer.save() with following serializers: class simpleartisttrackserializer(serializers.hyperlinkedmodelserializer): class meta: model = artisttrack fields = (...my fields...) class artistprofileserializer(serializers.hyperlinkedmodelserializer): owners = userserializer(many=true, required=false) tracks = simpleartisttrackserializer(many=true, required=false) class meta: model = artistprofile fields = (...my fields...) i getting following error: assertionerror: cannot call `.save()` after accessing `serializer.data`.if need access data before committing database inspect 'serializer.validated_data' instead. i don't see editing serializer.data object. th...
Read more

Why does Go error when trying to marshal this JSON? -

-
i'm trying rather simple example of trying decode json file structs using golang. however, when attempting error that json: cannot unmarshal object go value of type []main.track which don't understand. here's code in question, , json can found here . package main import ( "encoding/json" "fmt" "net/http" "os" ) // tracks group of track types type tracks struct { tracks []track } // track represents singular track type track struct { name string url string artist artist } // artist represents single artist type artist struct { name string mbid string url string } func main() { url := "http://ws.audioscrobbler.com/2.0/?method=geo.gettoptracks&api_key=c1572082105bd40d247836b5c1819623&format=json&country=netherlands" response, err := http.get(url) if err != nil { fmt.printf("%s\n", err) os.exit(1) } de...
Read more