GridView_RowDeleting is not firing - asp.net

Question

Currently I am making a webapp in asp.net. Normally I use a sqlDataSource and enable paging and deleting etc, but I am not able to do that in this case.
I made a GridView and it shows the data perfectly, how ever my RowDelete event doesn't fire
Code GridView: ( only relevant code )
<asp:GridView ID="GridView1"
runat="server"
onpageindexchanging="GridView1_PageIndexChanging"
onrowdeleting="GridView1_RowDeleting">
<Columns>
<asp:TemplateField
HeaderStyle-CssClass="head"
ItemStyle-CssClass="items"
HeaderText="Klant">
<ControlStyle ForeColor="#333333" />
<HeaderStyle CssClass="head"></HeaderStyle>
<ItemStyle CssClass="items" Font-Bold="False" ForeColor="#494C50" ></ItemStyle>
<ItemTemplate>
<asp:LinkButton ID="klant" runat="server"
Text='<%#Eval("Bedrijf") %>'
PostBackUrl='<%# "klant_wijzigen.aspx?Klant_ID="+Eval("Klant_ID").ToString()%>'></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField
HeaderStyle-CssClass="head"
ItemStyle-CssClass="items"
HeaderText="Categorie">
<ItemTemplate>
<asp:LinkButton ID="categorie" runat="server"
Text='<%#Eval("Categorie") %>'
PostBackUrl='<%# "cat_wijzigen.aspx?Cat_ID="+Eval("Cat_ID").ToString()%>'>
</asp:LinkButton>
</ItemTemplate>
<ControlStyle ForeColor="#333333" />
<HeaderStyle CssClass="head"></HeaderStyle>
<ItemStyle CssClass="items" Font-Bold="false" ></ItemStyle>
</asp:TemplateField>
<asp:BoundField
DataField="Website"
headertext="Website"
HeaderStyle-CssClass="head"
ItemStyle-CssClass="items">
<HeaderStyle CssClass="head"></HeaderStyle>
<ItemStyle CssClass="items"></ItemStyle>
</asp:BoundField>
<asp:BoundField
HeaderStyle-CssClass="head"
DataField="Titel"
headertext="Titel"
ItemStyle-CssClass="items"
>
<HeaderStyle CssClass="head"></HeaderStyle>
<ItemStyle CssClass="items"></ItemStyle>
</asp:BoundField>
<asp:TemplateField
HeaderStyle-CssClass="head2"
ItemStyle-CssClass="items2">
<ItemTemplate>
<asp:Button ID="LinkButton1"
runat="server"
CausesValidation="False"
CommandName="Delete" Text="Delete"
CssClass="verwijder"
OnClientClick="return confirm
('Weet je zeker dat je het project wilt verwijderen?')">
</asp:Button>
<asp:Button ID="project" runat="server"
Text="Details"
CssClass="details"
PostBackUrl='<%#"Details.aspx?ID="+Eval("ID").ToString()%>'
/>
</ItemTemplate>
<HeaderStyle CssClass="head2"></HeaderStyle>
<ItemStyle CssClass="items2"></ItemStyle>
</asp:TemplateField>
</Columns>
<HeaderStyle CssClass="head"></HeaderStyle>
<AlternatingRowStyle BackColor="#e1e3e9" />
</asp:GridView>
As you can see they are all bounded. The delete button is a LinkButtton
And this is my script:
Protected Sub Gridview1_RowDeleting(ByVal sender As Object, ByVal e As GridViewDeleteEventArgs)
GridView1.DeleteRow(e.RowIndex)
GridView1.DataBind()
End Sub
I bind my GridView like this: I have made 2 seperate SqlDataSources with 2 different Select Queries. Based on on the SelectedValue of my dropdownlist selects the SqlDataSource:
Code
Public Sub Wop() 'Here I set the IF statement.
If DropDownList1.SelectedValue = 0 Then
GridView1.DataSource = SqlDataSource4()
Else
GridView1.DataSource = SqlDataSource2()
End If
GridView1.DataBind()
End Sub
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)
Wop() `Here is were I call the IF statement.
End Sub
Any clue would be appreciated.
NOTE
I must say I am not writing in C#!

Answer 1

You look like you're calling DeleteRow from within your RowDeleting event. That doesn't make any sense since I would imagine that RowDeleting is not raised until DeleteRow is called.
Edit:
From MSDN:
Use the DeleteRow method to programmatically delete the record at the
specified index from the data source. This method is commonly used
when you need to delete a record from outside of the GridView control,
such as from a different control on the page. Calling this method also
raises the RowDeleted and RowDeleting events.
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.deleterow.aspx