I have .aspx page that page inserts the data to the database on a button click. But when i press the button it is going right. i m getting the Successfully message as " successfully inserted data". In this situation if i press "F5" or Refresh the page it is firing the button click event.
View 2 Repliespublic partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
if (!IsPostBack) // If page loads for first time
Session["update"] = Server.UrlEncode(System.DateTime.Now.ToString()); // Assign the Session["update"] with unique value
[code]...
On button click i do action A1, like
btnAction1_Click(object sender, ImageClickEventArgs e) {
//Action 1 code
}
now ,i'll click this button. If page is refreshed after Action1 is done..request is sent again and same action is repeated.
I have a receipt page for my clients that will display their info and they will get notify by an email message. Here is the problem: when user hit refresh button from a brownser, it will send duplicate email message to the user.
This is what i have:
protected
void Page_Load(object sender,
EventArgs e)
{ if(!IsPostBack)
SendEmail()
}
protected void SendEmail()
{ //here is my function for email
}
I have some asp.net pages that read and write cookie values. During the life cycle of a page it may update the cookie value and then need to read it again further in the code. What I've found is that it's not getting the latest value of the cookie until a page refresh. Is there a way around this? Here's the code I'm using to set and get the values.
public static string GetValue(SessionKey sessionKey)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiePrefix];
if (cookie == null)
return string.Empty;
return cookie[sessionKey.SessionKeyName] ?? string.Empty;
}
public static void SetValue(SessionKey sessionKey, string sessionValue)
{
HttpCookie cookie = HttpContext.Current.Request.Cookies[cookiePrefix];
if (cookie == null)
cookie = new HttpCookie(cookiePrefix);
cookie.Values[sessionKey.SessionKeyName] = sessionValue;
cookie.Expires = DateTime.Now.AddHours(1);
HttpContext.Current.Response.Cookies.Set(cookie);
}
I have a page that shows statistics for users, this cannot be cached because each user has different statistics and there are many thus the real time query must be made.
What the way to avoid database server overload when user will click F5's to refresh or to ask different queries in short time intervals ?
i have problem with radiobutton is in autopostback=true.
if i check rb1 page is refresh. after using update panel also i face the same problem in my code autopostback=true is compulsary beacause some controls open depending on this option..
Here is the sample code am trying.
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePartialRendering="true" />
<div>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="conditional">
<Triggers>
<asp:PostBackTrigger ControlID="Button1" />
[Code] ....
This upload is working. But why the page is getting refreshed? this is not partial post back and instead it 's full post back. i have read the articles for the fileuplaod with issue inside the update panel. is there any way to achieve this asynchronous upload on button click?
I don't want to use the Ajaxtoolkit Asyncupload because that will upload (Ref : [URL] ....] the moment when we seelct the file itself which i don't want to do that. i need to do on the button click event.
I have a radio buttonlist in my webpage with 2 list items, when I click the 2nd list item I want to change the visibility of a text box so it wore the code
protected void rbList_SelectedIndexChanged(object sender, EventArgs e)
{
if (rbList.SelectedIndex == 0)
{
txtPresentlyUsing.Visible = false;
}
if (rbList.SelectedIndex == 1)
{
txtPresentlyUsing.Visible = true;
}
}
and its working fine but the page got refreshed how can I avoid this if I want to use ajax how can I implement it?
I need to update datalist in image gallery when fileupload has been completed.
<div style="display: block;">
<div>
<div style="padding-left: 15px; padding-right: 15px;">
<div>
<uc1:ctrlFileUpload ID="ctrlFileUpload1" runat="server" />
<uc2:ctrlImageGallery ID="ctrlImageGallery1" runat="server" />
</div>
<div>
</div>
</div>
</div>
</div>
In the Control File Upload I need to fire the the other ctrl to refresh the page.
<asp:UpdatePanel ID="UpdatePanelUploadArea" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<span>
<asp:FileUpload ID="FileUpload1" runat="server" />
<br />
<asp:Button ID="UploadButton" runat="server" Text="Upload Now" OnClick="UploadButton_Click" />
<asp:Label ID="lblResult" runat="server" ForeColor="#0066FF"></asp:Label>
<br />
</span>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="UploadButton" />
</Triggers>
</asp:UpdatePanel>...........
I am created one gridview which contains image button.If i click image button call javascript using
onclientclick event from that calling same url page rebinding gridview again...while rebinding page
How can I use double buffering in asp.net C#?I want smthng like that : I dont want full page refresh when I click a button in a web page.. I think it can be solved with double buffering. When a button clicked for redirect a content page (button-in master page), current page will not go until the redirected page completely load in the background..
View 3 RepliesI have a masterpage with a timer that shows server time and refreshes every second, on the content page I have a chat program with ajax, refreshes every to second to get the last messages entered.
I have a Html TextBox and a hidden Submit Button, when user write a text, and hit the enter, I check to see if this is the enter key and then submit the message,it is working perfectly in IE, but in FireFox and Opera it show the same message twice. I think the problem is the Timer, is there any way to avoid the MasterPage timer in this particular content page?
I have Update panel in Master page:
<asp:ScriptManager id="CartScript" runat="server"></asp:ScriptManager>
<asp:UpdatePanel id="CartBox" runat="server" updateMode="Conditional">
<ContentTemplate> [code]...
But i got same error. how I can add to my Update Panel that Button from Content Page can refresh it?
I have a master page with a menu on it. I have found now two pages out of dozens where for some reason the master page events aren't firing. I've put a break point in there and it never hits it. Is there something that could cause a disconnect between the page and the master page events? Really weird it happens in Chrome and IE but they fire correctly in Safari.
View 12 RepliesI have an image uploader in admin panel of my website. That uploaded image is shown in some user page. Now, when i open the user page in a tab & the admin page containing the image uploader in another tab and then upload the image here and save it, it should automatically refresh the user page in the tab already opened but should not disturb the page that am currently now.
View 1 Repliescan i refresh a page when a button i clicked?
i think it has to do with the postback
If I have a code in the button, how do not refresh the entire page?What are requesting javascript or ..
View 2 RepliesI have a simple sign up form, user fill that form and press submit and then he refresh the page, the form re submit again and data enter in database twice. How to prevent?
View 1 RepliesI Simply drag a button from the toolbar onto a new page with a master page and a title, double click it so that I enter the Button1_Click function and sets a breakpoint and add some random code. The breakpoint nor the code never fires. I've tried this on several different pages and controllers, but with the same results: The page reloads, but no code is run. I Have Tried:
Ive tried with three different webbrowsers with all plugins disabled. I've tried to turn of Causes Validation, - Nothing changes. I've tried to clean and Rebuild the project, - Still nothing. I've tried to create a whole new project, -Does'nt work there either. Other Information: A RadioButtonList OnDatabound Event works, but whenever i try to do a Button or ImageButton click event the code for the event never fires. Ive programmed several webapplications in other versions of visual studio and ASP.NET but I have never encountered this problem before.
Breakpoints work in other parts of the code and the compile settings is set to DEBUG.
* Visual Studio 2010
* ASP.NET 4
* MVC 2.
Am I supposed to file a bug report or does anyone out there have a solution?
I have an update panel on the parent page into which I load and remove a set of user controls.
Now, when a button is pressed on the user control, the events are fired but there are no changes in the page. For example:
Main Page
<updatePanelMain>
<childcontrol1>
<childcontrol2>
etc
ChildControl.ascx
<update panel 1>
<panel1/>
<panel2/>
<btn1/>
etc
So, if I want to hide panel 1 when btn1 is clicked etc, I simple use code such as panel1.visible = false.
All this gets executed but nothing happens to the page.
<asp:UpdatePanel ChildrenAsTriggers="false" UpdateMode="Conditional" ID="updatePanel"
runat="server" EnableViewState="true">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSubmit" EventName="Click" />
</Triggers>
<ContentTemplate>
However, when I use placeholders instead of update panels in the child controls, I dont face any such problems.
<asp:PlaceHolder ID="placeholderTypeOfInvestor" runat="server">
I have gv as follows: Refresh Page when Download Button is clicked in ASP.Net
View 1 RepliesI have a "div" whose visibility is controlled by Javascript.There is a button inside that "div".When I click on button, page refresh and due to this "div" hides.I want when I click on button, "div" should not hide. How to achieve it without using javascript
View 1 RepliesI have a .aspx page that has menu control and multiviews Each view has a Grid view control and drop down boxes.
Iam getting an error if i click the refresh button on the ie browser
"The Page cannot be refreshed without resending the information
Click Retry to send the information or click cancel to return to same page that you are trying to view"
I have a button as template field in my hierarchical grid and on that button I am updating some data but when user hit the browser refresh button it executes by itself .
here is my code behind
protected void GridView1_RowCommand(Object sender, GridViewCommandEventArgs e)
{
if (!Page.IsPostBack)
{
if (e.CommandName == "UpdateBillData")
[Code]....