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i want to change image of an image control based on the value of textbox by clicking on the ajax numericupdownextender control.Please provide solution in c# and also tell me how we can write custom code for this.

Amen Ayach
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Maya Shankar
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  • Can you show us what you have tried already? We'd like to help you with a specific problem. We're not really the kind of site that writes code for you, we're the kind that helps you fix problems. – rlb.usa Mar 06 '12 at 20:10

1 Answers1

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I imagine you'll want to use the currentChanged event of the NumericUpDownExtender. This fires an event client side (in javascript - not C#).

"The NumericUpDown extender has only one event, currentChanged. This event is fired whenever the value of the extended textbox is changed through the up/down buttons or when the user types a new value in that textbox. In case of typing, the event fires whenever the focus leaves the textbox."

function pageLoad(sender, args) {
    $find('<%= NumericUpDownExtenderID.ClientID %>').add_currentChanged(methodtocall);
}

function methodtocall(sender, e) {
    alert(String.format('change event fired. Value: {0}', e));
}

If this doesn't solve your problem then you need to be clearer in your question.

Bosco
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