I have a page which allows the user to send email. After they click the submit button, I display a confirmation message. However, if the user clicks the browser's Refresh button once the confirmation message is displayed, the email is sent a second time (or a third, fourth, fifth, etc.). What can I do to prevent the Refresh button from resending the email?
View 6 RepliesI have problem with user control: MyCollection : UserControl
MyCollection contains:
[code]....
Works fine unless I register event for some button:
button1.Click += ...
When click on button, nothing happens - page does postback, refresh but event handler method is not executed. Generated HTML is bit strange. Every page control has correctly generated ClientID including parent container ID.
Button in this collection MyCollection has odd ClientID - itemsAddresses$button1
I've read that OnClick is executed on the server and onClientClick is executed on the client. Is it better to use OnClientClick to do something like close a modal popup?
If my understanding is correct then this would avoid a trip to the server to accomplish the same task. This would be great for something that doesn't need to make a round trip to the server and back.
after user loggs out if he clicks the browsers back button then users had to be redirected to login page
doenst matter how many time the user clicks on back button take him to login page
how to achieve this let me know
Why code <%= System.DateTime.Now.ToLongDateString() %> is not executed in ASP.NET.
<input class="input" name="url" id="url" type="text" runat="Server" style="width: 650px" onblur="this.value='<%= System.DateTime.Now.ToLongDateString() %>'" />
I have a nested ListView (Master/Detail) questionaire that was described in this posting: The inner list item must call a server method with three arguments. Thanks to several of you, I have code that properly generates the JavaScript; however, that code is not actually firing. Here is the declaration of the inner list view:
<asp:ListView ID="lstAnswers" runat="server" DataKeyNames="QuestionID" OnItemDataBound="lstAnswers_ItemDataBound">
<LayoutTemplate>
[code]...
Code:
01.If InStr( Request.ServerVariables("HTTP_REFERER"), "google") > 0 Then
KeyURL = Request.ServerVariables("HTTP_REFERER")
' Remove all up to q=
KeyLen = Len(KeyURL)
kStart = InStr( KeyURL, "q=" )
kStart = kStart + 1
KeyRight = KeyLen - kStart
Keyword = Right( keyURL, KeyRight )
[code]...
when user click forgot password it asked user name and email and send his password on his email.
How implement this task in asp.net. with datbase sql server.
I have a checkbox header in my gridview. My problem is I can't add a javascript when the user clicks the checkbox. What is wrong.
my gridview is
[Code]....
On Row_DataBound I have
DirectCast(GridView1.HeaderRow.FindControl("Header"), CheckBox).Attributes.Add("onclick", "javascript:SelectAll();")
But I am getting an error of : Object reference not set to an instance of an object.
I also try
DirectCast(e.Row.FindControl("Header"), CheckBox).Attributes.Add("onclick", "javascript:SelectAll();")
I want to reload the page when the user clicks on the back button, from a particular page.Say for example there are three pages:
Page1.aspx,Page2.aspx,Page3.aspx
I want when user move from Page2 to Page3. When he clicks on "Back" button on browser page shld load I have tried adding a onload function JS in Page2 it works out. The issue is identifying user is coming from Page3.
i have a usercontrol inside an updatepanel. when i click some button this usercontrol will be loaded. and the usercontrol itself has anither button in it. the problem is that the usercontrol code behind is never executed and when the button is clicked the usercontrol disappears.
View 1 RepliesI'm using a ASP.NET Web Form to capture information from a user and then email the results to me. This is working well.
The problem is, that the SMTP Relay Server I am using from my ISP seems to be a bit slow so once I hit SEND on the form, it seems to take a little longer than average before sending the user through to the "Thank-You" page.
To counter-act the long wait time, I would like to add a little bit of code that will display on the Web Form once the user clicks the send button, but before the data is actually sent or they are forwarded on to the thank-you page.
Right now in my file.aspx.vb I have:
Try
smtpClient.Send(mailMessage)
Response.Redirect("thankyou.aspx")
Catch smtpExc As System.Net.Mail.SmtpException
'Log error information on which email failed.
Catch ex As Exception
'Log general errors
End Try
What I'm wondering is if it is possible to have a HIDDEN control of some type on the form and then change Visible=False to Visible=True to have the text display once the user clicks the Send button? Or should this be done another way?
I am creating a webform where a hperlink control is added dynamically and i want to open a link of that hyperlink in a new browser window.
View 4 RepliesI'm trying to populate a gridview after the user clicks a button. In the button_click event handler I'm fetching the info I want to display on the grid. this is the code I'm using to do it...
[code]....
I am changing a vb.net windows form program to browers application using asp.net and code behind vb.net. The form has a textbox for a date, currently when user clicks in the textbox a calendar pops up to force the user to select from the calendar. How do I do this using asp.net/code behind vb.net.
View 9 Repliesmy dropdown list contains 3 items google,yahoo,hotmail.
It the user selects google msgbox should be raised saying "You hae selected google". Thats it. I m not getting how to do that. I tried on selectedchangeindex event but nothing happened.
I am displaying a list of songs in a table and each one has the flash player next to it.Is there a way i can stop the flash player when a user clicks on another song in the table. currntly they both play togetther.
View 1 RepliesI have a web page that shows all contacts and its running fine.
When user doen not activity for some time and after that user clicks the button to download records, its shows message:
Validation of viewstate MAC failed I not getting where this problem arise and what to do to solve.
One imp thing, after being inactive for some time when I logout and then log in then its works fine.
I assume it can be session timeout problem, but dont know how to deal with it.
i have a gridview with a checkbox in it, when the user clicks the select button i want the checkbox to uncheck... i've made the select button a template and added the following code:
[code]....
I have a webpage that allows a user to download a specified file. When the file is ready to be fully downloaded (i.e I call the HttpResponse.End or HTTPRepone.Flush) the user is presented with a File Download dialogue.
Is there any way to determine what option the user has selected?
Have they Opened, Saved or Cancelled the File Download once the Flush or End has been sent?
I have a file upload control. I would like to do something when the user clicks on the brose/choose file. Basically, I want to autopopulate the textbox once the user clicks to browse and get the file.
<asp:FileUpload ID="FileUpload1" runat="server" onchange="this.form.txtbox1.value=GetFileName(this.value);"/>
i am trying to do is set my page up so that when a user clicks on a row in the gridview a hidden checkbox is unchecked... i am new to asp.net but never thought something as simple like this could be so difficult to work out... i've been on it for around 5 weeks now, i started this on my first day of the website, and have actually designed and written the entire site while still trying to work this out... i first did this on the selectedindexchanged event:
Dim cbox As CheckBox = CType(GridView1.Rows(GridView1.SelectedIndex).FindControl("CheckBox1"), CheckBox)
If cbox IsNot Nothing Then
If cbox.Checked = True Then[code]....
problem is the above code throws up errors...! once i take out the where clause it unchecks every checkbox and writes it back... is there a way i can say just uncheck the selectedrow checkbox and update that one row???
i'll admit there are better ways of doing this, and i'm sure the above code is a little messy,
So I am using a simple GridView control to display a table containing Sender_ID, Subject(hyperlink), date . When the user clicks on the subject hyperlink, another page with the Body should open. This page should also contain a Back button for navigation.
View 5 Replieshow to stop body onload= event from firing when user clicks server side button .
this is my below code in client side
[code]....
when i clicks server side button it raises body onload function again?
I want to raise this body onload function only when page load not in server side button click.
I've been searching in all the forums, and websites for the last 4 hours without finding a solution for a problem that in the beginning I tought it was an easy one!!!This is my problem, I have a gridview with the following colums: select (link), Room Type (for hotels), and TotalThe total field Is a template field it has in the custom binding property a function: find_total(Eval("Room")) this function makes some calculation and returns the calculated Total value, and shows in the gridview without problems,The thing I cant do is: when the user clicks on the select link I want to get the text of the template field and put in a label control.
I tried, almost all the events of the datagrid, to reference the content of my template field but sometimes I receive a null value (seems that Im looking for the value before the find_total function has been executed) or I get an error "the index is out of range".I dont know how to approach this, I tought It has to be much easier, but Im very confused right now, if anybody knows how to do this