I'm currently making a TestForm but I've run into some issues. I have 2 textboxes as follows:
<asp:textbox id="VATNbrUser"
style="Z-INDEX: 160; POSITION: relative; width: 319px; top: 0px; left: 0px;" runat="server"
MaxLength="35" ToolTip="Max. 35 posities" >
<asp:textbox id="AliasUser"
style="Z-INDEX: 160; POSITION: relative; width: 319px; top: 0px; left: 0px;" runat="server"
MaxLength="35" ToolTip="Max. 35 posities" >
Right now, if i want to enable a button if both textboxes are not empty. So I made a function:
function ControleInput() {
document.getElementById('WriteData').disabled = true;
var allFields = true;
//Controleren op de aanwezigheid van een alias
if (!document.getElementById('AliasUser').value.length > 0) {
allFields = false;
}
//Controleren op de aanwezigheid van een BTW-Nummer
if (!document.getElementById('VATNbrUser').value.length > 0)
{ allFields = false; }
//Controleren op de aanwezigheid van een afkorting
if (allFields) {
document.getElementById('<%=WriteData.ClientID %>').disabled = false;
}
}
which i assign to my textboxes using the following code:
VATNbrUser.Attributes.Add("onkeydown", "ControleInput()")
AliasUser.Attributes.Add("onkeydown", "ControleInput()")
This code works when the user types data into a Textbox. Yet it doesn't work when the user presses CTRL+V or Right-Click followed by Paste. What am i doing wrong?
I've tried the following links but to no avail:
