Input for ASP.NET AJAX includes a rich client-side object model with several client-side events.
To add a handler for a client-side event, click one of the OnClient properties in the Visual Studio Properties window. A drop-down list appears with a list of JavaScript functions currently defined on your Web form and the option to add a new event handler.
When you select Add New Client Side Handler from the drop-down list, a new JavaScript function base will automatically be generated for you and added to your Web form.
Your screen will automatically change to Code view and highlight the new function. For example, the new client-side handler for OnClientInvalidInput generates the following:
function C1MaskedInput1_OnClientInvalidInput(aC1Edit)
{
// Put you code here.
};
You can then write code to handle the event.
Client-side event example
Here is an example of the OnClientKeyDown event handler:
<script type="text/javascript">
// Set numeric range to 0001 on ctrl+home
// Set numeric range to 0999 on ctrl+end
function do_OnClientKeyDown(aC1Edit, aKeyCode, aEvent){
if(aEvent.ctrlKey) {
if(aKeyCode == 36) { // if Home key down
aC1Edit.set_Text("0001");
aC1Edit.selectText(3);//set caret to new position
}
if(aKeyCode == 35) { // if End key down
aC1Edit.set_Text("0999");
aC1Edit.selectText(1, 4);//select text '999'
}
}
};
</script>
<cc1:C1MaskedInput
id="C1MaskedInput1"
runat="server"
mask="<<0...1000>>"
onclientkeydown="do_OnClientKeyDown"
text="0009">
</cc1:C1MaskedInput>
The following provides names and descriptions of Input for ASP.NET AJAX's client-side events:
|
Event Property |
Client-Side Equivalent Methods |
Description |
Parameter |
|
get_OnClientBlur, set_OnClientBlur(func_name) |
Occurs when the control loses the input focus. |
aC1Edit | |
|
get_OnClientCustomButtonClick,
set_OnClientCustomButtonClick |
Occurs when the user clicks a custom button. |
aC1Edit | |
|
get_OnClientDateChanged, set_OnClientDateChanged(func_name) |
Occurs when the user changes the Date value. |
aC1Edit | |
|
get_OnClientFocus, set_OnClientFocus(func_name) |
Occurs when the control receives focus. |
aC1Edit | |
|
get_OnClientInit, set_OnClientInit(func_name) |
Occurs when the control is initialized. |
aC1Edit | |
|
get_OnClientInvalidInput, set_OnClientInvalidInput(func_name) |
Occurs when the user enters invalid input in the control. |
aC1Edit | |
|
get_OnClientKeyDown, set_OnClientKeyDown(func_name) |
Occurs when the user presses a key. |
aC1Edit, aKeyCode, aEvent | |
|
get_OnClientKeyPress, set_OnClientKeyPress(func_name) |
Occurs when the user presses an alphanumeric key. |
aC1Edit, KeyCode, aEvent | |
|
get_OnClientKeyUp, set_OnClientKeyUp(func_name) |
Occurs when a user releases a key. |
aC1Edit, aKeyCode, aEvent | |
|
get_OnClientMouseDown, set_OnClientMouseDown(func_name) |
Occurs when the user clicks the control with either mouse button. |
aC1Edit, aEvent | |
|
get_OnClientMouseOut, set_OnClientMouseOut(func_name) |
Occurs when the user moves the mouse pointer outside the boundaries of the control. |
aC1Edit, aEvent | |
|
get_OnClientMouseOver, set_OnClientMouseOver(func_name) |
Occurs when the user moves the mouse pointer into the control. |
aC1Edit, aEvent | |
|
get_OnClientMouseUp, set_OnClientMouseUp(func_name) |
Occurs when the user releases a mouse button while the mouse pointer is over the control. |
aC1Edit, aEvent | |
|
get_OnClientTextChanged, set_OnClientTextChanged(func_name) |
Occurs when the user changes text in the control. |
aC1Edit | |
|
get_OnClientValueBoundsExceeded, set_OnClientValueBoundsExceeded (func_name) |
Occurs immediately after the value typed in the input box is out of Min or Max bounds. |
aC1Edit |
For examples showing common client-side tasks, see the Client-Side Event Tasks topic.
|
