Sub routine for OnClick procedure in GridView is not executing - asp.net

Question

We have a GridView with a 2 buttons. One of the buttons is a select button and the other is a one without a command. It is supposed to activate an OnClick sub routine. The sub routine is not executing.
Here is the markup of the GridView with the buttons:
<asp:GridView
ID="GridViewParentsSummary"
runat="server"
AllowPaging="True"
AllowSorting="True"
AutoGenerateColumns="False"
DataKeyNames="ID"
>
<Columns>
<asp:BoundField
DataField="ID"
HeaderText="ID"
SortExpression="ID" InsertVisible="False" ReadOnly="True" Visible="False" />
<asp:BoundField
DataField="FatherName"
HeaderText="FatherName"
SortExpression="FatherName" />
<asp:BoundField DataField="MotherName" HeaderText="MotherName"
SortExpression="MotherName" />
<asp:ButtonField
ButtonType="Button"
CommandName="Select"
Text="Select Details" />
<asp:TemplateField ShowHeader="False">
<ItemTemplate>
<asp:Button
ID="ButtonNewPersonToReleaseChildren"
runat="server"
CausesValidation="false"
Text="New Person To Release Children"
CommandArgument='<%# Eval("ID") %>'
OnClick="NewPersonToReleaseChildren" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
Here is the VB.Net code-behind coding with the sub routines for the buttons:
Protected Sub GridViewParentsSummary_SelectedIndexChanged(sender As Object, e As EventArgs) Handles GridViewParentsSummary.SelectedIndexChanged
IntParentsID = GridViewParentsSummary.DataKeys(GridViewParentsSummary.SelectedIndex).Value
Response.Redirect("AuthorizationForChildReleaseDetails.aspx")
End Sub
Protected Sub NewPersonToReleaseChildren(sender As Object, e As EventArgs)
blnAddModeIsSelected = True
MsgBox("The button was clicked.")
Response.Redirect("AuthorizationForChildReleaseDetails.aspx")
End Sub
I'm sure I am missing some coding but don't know what that could be because the sub routine for the Select button works, but not the sub routine for NewPersonToReleaseChildren.

Answer 1

in gridview:
<asp:TemplateField HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Center"
FooterStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:ImageButton ID="ImgBtnDel" runat="server" ImageUrl="~/Images/icon-delete.gif" CommandName="del"
CommandArgument='<%# Eval("ID") %>' />
</ItemTemplate>
</asp:TemplateField>
use aspButton or Imagebutton in gridview,in code behind:
Protected Sub gridview1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gridview1.RowCommand
Dim myId As String = e.CommandArgument.ToString
If e.CommandName = "del" Then
ElseIf e.CommandName = "upd" Then
End If
End Sub

Answer 2

Add Handles Handles NewPersonToReleaseChildren.Click to your handler
Protected Sub NewPersonToReleaseChildren(sender As Object, e As EventArgs) Handles NewPersonToReleaseChildren.Click
blnAddModeIsSelected = True
//MsgBox("The button was clicked.")
Response.Redirect("AuthorizationForChildReleaseDetails.aspx")
End Sub
I don't think there is anything like MsgBox in asp.net. If the Handles does not work, replace that line with Throw New Exception("My Button was called") or put a break point on that line and press F5