How to hide Insert form of gridview when inserting row? - asp.net

Question

I am trying to insert a row in Gridview by using a button and text box outside of the Gridview, and it is working fine. But whenever I am inserting the row, insert form of Gridview is appearing. How to disable this form?
my button:
protected void btnAdd_Click(object sender, EventArgs e)
{
MenuAssignmentGv.AddNewRow();
}
my datasource
<asp:SqlDataSource ID="AttdMenuAssignmentDs" runat="server" ConnectionString='<%$ ConnectionStrings:ConnectionString %>' ProviderName='<%$ ConnectionStrings:ConnectionString.ProviderName %>'
SelectCommand="select mra.RoleAssignmentID, mra.MenuRoleID , mr.MenuRole, mn.MenuName, mn.MenuUrl
from ATTD_MST_MENU mn
inner join ATTD_MST_MENU_ROLE_ASSIGNMENT mra
on mn.MenuID=mra.MenuID
inner join ATTD_MST_MENU_ROLE mr
on mra.MenuRoleID=mr.MenuRoleID
where mra.MenuRoleID=#MenuRoleID"
InsertCommand="INSERT INTO ATTD_MST_MENU_ROLE_ASSIGNMENT(MenuRoleID, MenuID) VALUES (#MenuRoleID, #MenuID)"
<InsertParameters>
<asp:ControlParameter ControlID="ddlRole" PropertyName="Value" Name="MenuRoleID" />
<asp:ControlParameter ControlID="ddlMenu" PropertyName="Value" Name="MenuID" />
</InsertParameters>
<SelectParameters>
<asp:ControlParameter ControlID="ddlRole" PropertyName="Value" Name="MenuRoleID"></asp:ControlParameter>
</SelectParameters>
</asp:SqlDataSource>
whenever i click the button the form always appear, and then the record inserted after I click Update of that form.form appear when inserting new row by clicking button

Answer 1

The ASPxGridView.AddNewRow method does exactly what it should do according to the documentation:
The AddNewRow method switches the ASPxGridView to edit mode and allows
the values of the new row to be edited.
Your task is different - you want to add the new row to the database and make it visible in the ASPxGridView. If you insert a new row to the database before the ASPxGridView.DataBind method is called, the new row will become visible in the ASPxGridView automatically. Alternatively, you can continue using the ASPxGridView API according to the documentation:
To add the new record to the underlying datasource, call the
UpdateEdit method. To initialize row values in code, handle the
InitNewRow event.