Sever side created button doesn't fire click event - html

Question

Following the example answer found at ASP.NET/HTML: HTML button's onClick property inside ASP.NET (.cs)
The button "Click Me!" works if I add the button html normally on the page. If I add it to the page using ASP.NET VB.NET InnerHTML, the click doesn't fire. Does anyone know why?
Below is after the HTML is rendered.
Below is the ASP.NET VB.NET code:
strTbl1 = "<table style='text-align:Left;'><tr class='spaceUnder'>"
strTbl1 = strTbl1 + "<td style=''><button id='Button1' OnServerClick='Button1_OnClick' runat='server'>Click me!</button></td></tr>"
strTbl1 = strTbl1 + "</table>"
Task1Assignees.InnerHtml = strTbl1
I have attempted <input type=button..., asp:Button .. and etc but all don't register click event. If I attempt an asp type then I get a JavaScript error as well.
UPDATE:
Server Side function
Protected Sub Button1_OnClick(ByVal sender As Object, ByVal e As EventArgs)
MsgBox("hi")
End Sub
FINAL FIX
So using example from Dynamic created Buttons VB.Net with Loop and from the accepted answer below, I was able to fix my code like so
Page_Load (outside the IsPostBack check)
Task1Assignees.Controls.Clear()
For j As Integer = 0 To System.Web.HttpContext.Current.Session("intAssignees") Step 1
Dim btn As New Button
btn.Text = "Mark Completed"
btn.CssClass = "btn btn-success"
btn.ID = "btnAssignee" & j
AddHandler btn.Click, AddressOf Send
Task1Assignees.Controls.Add(btn)
Next
Button Creation
System.Web.HttpContext.Current.Session("intAssignees") = ds1.Tables(0).Rows.Count
Task1Assignees.Controls.Clear()
For j As Integer = 0 To System.Web.HttpContext.Current.Session("intAssignees") Step 1
Dim btn As New Button
btn.Text = "Mark Completed"
btn.Cssclass = "btn btn-success"
btn.ID = "btnAssignee" & j
AddHandler btn.Click, AddressOf Send
Task1Assignees.Controls.Add(btn)
Next
Function for button
Sub Send()
Response.Redirect("~\Home.aspx")
End Sub

Answer 1

That won't work, but you can create server-side HTML controls instead.
var table = new HtmlTable();
var row = new HtmlTableRow();
var cell = new HtmlTableCell();
var btn = new LinkButton();
btn.Text = "Click Me!";
btn.Click += Button1_OnClick;
cell.Controls.Add(btn);
row.Cells.Add(cell);
table.Rows.Add(row);
Task1Assignees.Controls.Add(table);

Answer 2

1) Try change that button to an ASP:Button object and not an HTML button.
2) If that doesn't work, change view from code to design view, then double click the button and Visual Studio should automatically create the method (or in your case, direct you to the method where you'll execute code for the button click.)
3) If that doesn't work, drag and drop a button from toolbar and double click and repeat step 2. <-This should definitely work