How to use result of confim message?

Question

0.00/5 (No votes)

See more:

Hi All,

I have a gridview and on its selected index changed event i am using ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "confirm('Are you sure you want to delete');", true);

This works fine and displays confirm message.
My problem is if the result of the confirm message is true then i want to execute some code and if the result of confirm message is false i don't want the code to execute.

But at present in either case the code gets executed.

Can anyone help me out please.

I am using Ajax update panel and VS2008

Thanks in advance

Posted 28-Jun-10 23:48pm

forme

Add a Solution

6 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

**R. Giskard Reventlov** · Answer 1 · 2010-06-28T23:57:00

Solution 1

Try this:

"javascript:if(confirm('Are you sure you want to delete?') == false) return false;"

Posted 28-Jun-10 23:57pm

R. Giskard Reventlov

Updated 28-Jun-10 23:58pm

v2

Comments

forme 29-Jun-10 7:48am

Thanks but it does not work.. :(

R. Giskard Reventlov 29-Jun-10 8:09am

Yes it does: I use it all the time. How have you implemented this?

Sandeep Mewara 29-Jun-10 8:55am

Reason for my vote of 5
It *will* work. If you say it is not working then you are doing something wrong. All you need is to have a if based on the return value and stop the execution using return false. Try again or post what you tried that isn't working.

forme 29-Jun-10 9:09am

Thank you
This is my code
if (ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "javascript:if(confirm('Are you sure you want to delete?') == false) return false;", true)==true)
{
some code.....
}

and it gives me an error "operator == cannot be applied to operands of type void

R. Giskard Reventlov 29-Jun-10 9:20am

NO!

ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "javascript:if(confirm('Are you sure you want to delete?') == false) return false;", true);

is all you need.

forme 30-Jun-10 0:42am

I am doing something wrong but i am not getting what is the mistake i am doing.Kindly put some code.
Here is the complete code that i am using
protected void gvSuppDelete_SelectedIndexChanged(object sender, EventArgs e)
{
ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "script", "javascript:if(confirm('Are you sure you want to delete?') == false) return false;", true);
SupplierItem si = new SupplierItem();
si.Id = Convert.ToInt32(gvSuppDelete.SelectedValue);
si.SupplierName = gvSuppDelete.SelectedRow.Cells[1].Text;
si.SupplierAddress = gvSuppDelete.SelectedRow.Cells[2].Text;
si.LastUpdatedBy = Session["UserName"].ToString();
si.Status = false;
try
{
BALSupplier sup = new BALSupplier();
int res = sup.UpdateSupplier(si);

if (res > 0)
{
CloseWindow = "alert('Deleted successfully')";
ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "CloseWindow", CloseWindow, true);
//lblMsg.Text = "Deleted successfully";
Clear();
gvSuppDelete.DataBind();
}
else
{
if (res == -1)
{
CloseWindow = "alert('Supplier could not be deleted')";
ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "CloseWindow", CloseWindow, true);
}
}
}
catch (Exception ex)
{
CloseWindow = "alert('" + ex.Message + "')";
ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "CloseWindow", CloseWindow, true);
}
}
please tell me where i am going wrong.

R. Giskard Reventlov 30-Jun-10 3:24am

Put the script code in the OnLoad event. In any case, you should test to ensure that it hasn't already been registered. If you don't understand this you should read up on it first. If I just give you everything how the hell are you going to learn anything?

Member 13512741 3-Dec-17 12:29pm

bb

Shining Legend · Answer 2 · 2010-06-29T00:08:00

Solution 2

use return confirm instead of just confirm like below.

ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "return confirm('Are you sure you want to delete');", true);

Posted 29-Jun-10 0:08am

Shining Legend

Comments

forme 30-Jun-10 3:04am

Am I doing something wrong? but i am not getting what is the mistake i am doing.Kindly put some code. Here is the complete code that i am using protected void gvSuppDelete_SelectedIndexChanged(object sender, EventArgs e) { ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "script", "javascript:if(confirm('Are you sure you want to delete?') == false) return false;", true); SupplierItem si = new SupplierItem(); si.Id = Convert.ToInt32(gvSuppDelete.SelectedValue); si.SupplierName = gvSuppDelete.SelectedRow.Cells[1].Text; si.SupplierAddress = gvSuppDelete.SelectedRow.Cells[2].Text; si.LastUpdatedBy = Session["UserName"].ToString(); si.Status = false; try { BALSupplier sup = new BALSupplier(); int res = sup.UpdateSupplier(si); if (res > 0) { CloseWindow = "alert('Deleted successfully')"; ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "CloseWindow", CloseWindow, true); //lblMsg.Text = "Deleted successfully"; Clear(); gvSuppDelete.DataBind(); } else { if (res == -1) { CloseWindow = "alert('Supplier could not be deleted')"; ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "CloseWindow", CloseWindow, true); } } } catch (Exception ex) { CloseWindow = "alert('" + ex.Message + "')"; ScriptManager.RegisterStartupScript(UpdatePanel1, UpdatePanel1.GetType(), "CloseWindow", CloseWindow, true); } } please tell me where i am going wrong.

William Winner · Answer 3 · 2010-06-29T07:05:00

From your comments on the other answers, you seem to be going about this wrong. First of all, ScriptManager.RegisterStartupScript is a void function. This means that it doesn't return anything. So, you can't use it in an if statement like you've done.

I'm not that familiar with the web side, but I can tell you that what you're doing is wrong.

You probably need to register a full script that includes the code to be run if the person confirms that they want to delete.

I'm also curious why you would run code only if registering the startup script succeeded. That won't actually run the confirm, it just sets the UpdatePanel to run it when it is updated.

_Amy · Answer 4 · 2012-07-17T18:28:00

Solution 6

Hi,
You can try this:

C#

ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "javascript:return confirm('Are you sure you want to delete');", true);

As per the scenario which you are telling, it is working fine for me.

--Amit

Posted 17-Jul-12 18:28pm

_Amy

Comments

jkkr 31-Mar-17 1:48am

how to get the return value in this code ?

wadkar vinod · Answer 5 · 2014-03-27T21:59:00

Solution 7

ScriptManager.RegisterStartupScript(this, this.GetType(), "script", "javascript:if(confirm('Are you sure you want to delete?') == false) return false;", true);

means user select yes then { my loigc here} no { then another}

plz give me soltuion

Posted 27-Mar-14 21:59pm

wadkar vinod

Comments

sudevsu 31-Dec-14 11:05am

Did you achieve this Vinod? I have a same situation, on Dropdown select value I need a confirm message and clicking ok shud do somecode cancel close and continue with grid

MahendraChawhan · Answer 6 · 2012-07-17T08:56:00

See you can add (OnClientClick="return confirm('Are you sure you want to delete?');") this code in your server-side control

example of server-side control in .aspx file

XML

<asp:LinkButton runat="server" ID="lbDelete" Text="Delete" CssClass="ActionLinkButton" OnClientClick="return confirm('Are you sure you want to delete?');" CommandName="lbDelete" 
CommandArgument='<%#((GridViewRow)Container).RowIndex%>'>
</asp:LinkButton>

That will show a confirm dialog, and the Server-Side Click event will be executed only if the user selects Ok.

How to use result of confim message?

6 solutions

Solution 1

Solution 2

Solution 4

Solution 6

Solution 7

Solution 5

Add your solution here

Preview 0