how can read Specified column or All the columns of checked SelectionModel in Grid

hi
I'm going to get the value of all the checked rows in the Grid. I followed this example https://mvc.ext.net/#/GridPanel_Spreadsheet/Submit/

Code:

---

.SelectionModel(
              Html.X()
                  .CheckboxSelectionModel().ID("Model1")
                  .Mode(SelectionMode.Multi)

          )

---

and

Code:

---

.DirectEvents(de =>
                      {
                          de.Click.Action = "Submit";
                          de.Click.EventMask.ShowMask = true;
                          de.Click.ExtraParams.Add(new Parameter()
                          {
                              Name = "selection",
                              Value= "App.Model1.getSubmitData({ excludeId: true })" ,
                              Mode = ParameterMode.Raw 
                          });
                      }) )

---

but js error occurs With this theme : "Uncaught TypeError: App.Model1.getSubmitData is not a function"
i think getSubmitData only work for SpreadsheetSelectionModel but i have a CheckboxSelectionModel
is it possible someone give me a sample for getting value of checked row of grid in viewpage for using in codebehiend

no support?

Hello @TAYMA, and welcome to Ext.NET forums!

Sorry for the delay replying your inquiry.

The method you got from the example you pointed, getSubmitData() is a client-side method specific for the Ext.grid.selection.SpreadsheetModel (server-side class SpreadsheetSelectionModel), and an implementation specific to Ext.NET.

You are trying to call it in a Ext.grid.Selection.CheckboxModel (server-side class CheckboxSelectionModel); that's not going to work, because it does not implement that client-side (javascript) method.

Hope this helps!