The error "Ext.net.DirectMethods.MyFucntion is not a function"

I wonder why the first block of the code works good, but the second is not!

Code:

---

<ext:Button runat="server" ID="btnCalculateCoordinates" >
  <Listeners>
        <Click Handler="#{DirectMethods}.CalculateCoordinates()"></Click>
    </Listeners>
 </ext:Button>


//code behind
[DirectMethod]
public void CalculateCoordinates() { //............. }

---

In the this case the furebug says Ext.net.DirectMethods.CalculateCoordinates is not a function

Code:

---

<script type="text/javascript">
function calculateCoordinates() {
        Ext.net.DirectMethods.CalculateCoordinates();
}
 <ext:Button runat="server" ID="btnCalculateCoordinates" >
  <Listeners>
        <Click Fn="calculateCoordinates"></Click>
    </Listeners>
 </ext:Button>


//code behind
[DirectMethod]
public void CalculateCoordinates() { //............. }

---

Where DirectMethod is defined? UserControl or master page?

It is defined in the UserControl. That UserControl is contained in the Page, which is contained in the MasterPage.

If direct method is placed inside user control then ClientID of user control must be added to direct method

Code:

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Ext.net.DirectMethods.ClientIDOfUserControl.MyMethod();

---

Or you can add [DirectMethodProxyID] attribute for user control to prevent ClientID prefix or add own prefix
See https://examples1.ext.net/#/Events/D...thods/ID_Mode/

Thanks, it work!

Code:

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function calculateCoordinates() {
        Ext.net.DirectMethods.<%=ClientID%>.CalculateCoordinates();
    }

---