How to make a confirm box?
Question
I want to show a confirmation box from c# code rather than JavaScript. Is there any way I can have the confirmation box pop up when the below condition is true?
Here is the code so far:
if (items.SelectedNode.ChildNodes.Count >= 1)
{
ScriptManager.RegisterStartupScript(this.nav_tree_items, typeof(string), "Alert", "alert('Hello');", true);
}
I have already tried add.attributes, but that does not work.
I also tried the following but on click of cancel it performs an action anyway:
if (items.SelectedNode.ChildNodes.Count >= 1)
{
ScriptManager.RegisterStartupScript(this.nav_tree_items, typeof(string), "Confirm", "Confirm('Hello');", true);
}
8 answers
solution1
1 2013-04-22 07:21:13
Try this:
if (items.SelectedNode.ChildNodes.Count >= 1)
{
ScriptManager.RegisterStartupScript(this.nav_tree_items, typeof(string), "Confirm", "return Confirm('Hello');", true);
}
get the return value of the Confirm function in order to cancel or proceed.
Update 1:
Or use ASP.NET Ajax Toolkit Confirm Button
solution2
0 2013-12-12 11:46:04
You can use OnClientClick attribute of asp:Button .
Take the sample below:
<asp:Button ID="btnDelete" runat="server" OnClick="btnDelete_OnClick" OnClientClick="return confirm('Are you sure you want to delete time this record?');"/>
solution3
0 2011-12-16 13:53:25
You can try adding confirm box, but you should take proper action after clicking on ok/cancel button.
if (items.SelectedNode.ChildNodes.Count >= 1)
{
ScriptManager.RegisterStartupScript(this.nav_tree_items, typeof(string), "Alert",
@"var conrimationFlag; conrimationFlag = confirm('Your confirmation
message goes here!');
/* now, take proper action here based on the
value of variable conrimationFlag */ ", true);
}
Thanks.
solution4
0 2011-12-16 13:53:31
if (items.SelectedNode.ChildNodes.Count >= 1)
{
Page.ClientScript.RegisterStartupScript(typeof(YourPage), "alert", "<script>alert('Hello')</script>");
}
Edit:
in page:
<script>
function ConfirmAlert()
{
var result = confirm('Hello');
if (result)
{
//click ok button
//do something
}
else
{
//click cancel button
//do something
}
}
</script>
code behind
if (items.SelectedNode.ChildNodes.Count >= 1)
{
Page.ClientScript.RegisterStartupScript(typeof(YourPage), "ConfirmAlert", "<script>ConfirmAlert()</script>");
}
solution5
0 2011-12-16 14:05:41
look at this example
<script type="text/javascript">
<!--
function confirmation() {
var answer = confirm("Do you want to exit...?")
if (answer){
alert("Bye bye!")
window.location = "http://www.google.com/";
}
else{
alert("Thank you very much Come Again!")
}
}
//-->
</script>
</head>
<body>
<form>
<input type="button" onclick="confirmation()" value="Do you want to leaave">
solution6
0 2011-12-16 14:41:53
Read about ScriptManager from http://msdn.microsoft.com/en-us/library/bb310408.aspx
Try it out,
ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "KEY", "alert('hello')", true);
solution7
0 2011-12-16 14:43:41
try this one
if (items.SelectedNode.ChildNodes.Count >= 1)
{
String _scriptAuthor1 = "javascript:$(function () { " +
" return (confirm('Are you sure you want to delete ?')) });";
nav_tree_items.Attributes.Add("onClick", _scriptAuthor1);
}
solution8
-1 2013-06-20 06:09:19
instead of doing it with JavaScript do it with C#!...
DialogResult dialogResult = MessageBox.Show("Are you shure?", "Some Title", MessageBoxButtons.YesNo);
if(dialogResult == DialogResult.Yes)
{
//do something
}
else if (dialogResult == DialogResult.No)
{
//do something else
}
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