I have a page it contains some criteria part based on criteria click upon generate button data will displayed on gird
page also contains modify button where user can modify the grid data
once user clicks modify button the selected criteria part will disable
everything works as expected.. but i am not getting the disable control values during postback
how to get the values during postback?
I created a ASP.Net page with dynamic controls. These controls are added by the user. In the Page_Load event a table is created with few controls.
When these dynamic controls do a postback, I can't get the values of these controls, because in my HTML code they are not available.
I only get the id of the control which triggers the postback. But I can't find it with the command FindControl. All other controls, which a are not added dynamicly are searchable.
I'm constructing a User Control that will have one Property called "ContractIdx". Here's how I've constructed this Property:
public int ContractIdx
{
get
{
return Convert.ToInt32(this.Attributes["ContractIdx"]);
}
set
{
this.Attributes["ContractIdx"] = value.ToString();
}
}
I'm initially loading the User Control by passing a parameter to it and setting ContractIdx accordingly. That all works fine.
Upon Postback though I'm loading the User Control without any parameters and then setting its ID property to what it was before the Postback. My understanding was that if I did this then ViewState would properly restore everything. Yet apparently this is not the case with the "ContractIdx" attribute.
Where am I mistaken in my understanding? How should I change things to get this mechanism to work?
I had use a combox to let user select staff name and then it will automatically retrive the responsible recommending officer and approving officer to display in other 2 dropdownlist.
my code works fine but when user select staff name each time, the page will reload once to refresh the dropdownlist.
user complaint and don't want the page reload every time, how can i disable the postback? I need to use ajax?
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I've created loads of user controls, but this is my first time dealing with extending a server control. The problem I'm getting is that the base control's data is not being persisted across postbacks in a Master/Content page.I'm actually trying to get this working using a Telerik control (for my sins), but the same issue happens with a standard Web TextBox control. Code:
[Code]....
Now, I've copied the way I handle the control state as I do it with user controls (ControlState), and it isn't working. Can someone point me in the right direction please? All the examples I find refer to creating user controls, not extending existing controls. Specifically why nothing is being persisted on post back.
I have a button whose sole purpose is to set div.visible = true
There is a calendar control on my page and I need the selected date to remain selected after I hit this button. Right now if I hit the button it refreshes the whole page and sets the calendar's selected day back to date.
How to disable postback on page..
View 2 RepliesI have a master page containing menu items and if i click on any menu item then postback happens(it's not an asynchronous postback) that page loads in the content area. Now, if the page has taken some time to load and the user again clicks some other menu, then at some cases, it is crashing. So what i want to do is when postback is happening, I want to restrict the user to click anywhere on the master page or content page. We have achieved this on asynchronous postback.... But cant find a solution during postback.
View 3 RepliesI need code to work in javascript disable for postback of checkbox. As i know with lots of google search that it is not possible..
View 6 Repliescan we disable postback on expand/collapse of treeview node while allowing post back on SelectedNodeChanged
View 2 RepliesI had validate the data when user click save button, an alert box will pop up when error occurs.
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But when the user click confirm button, it will auto postback to reload the page that made my page distored (may conflict the css that move to left hand side)I had insert "return false;" in the statement, but it doesn't work.
Is there any way to disable the postback ?
I was trying to disable button after it is clicked once. But I am not sure where I was going wrong. On click of Ok, I am trying to navigate back from ascx to aspx page.
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I am a newbee with c# and asp.net.1- I have a grid view which is with name of GRIDVIEW12- GRIDVIEW1 is bound to dataset on PAGELOAD
GridView1.DataSource = dt1;
I'm trying to write code that will disable submit button (or all submit buttons) on the page to avoid double postback.I thought of generating my own postback javascript function (and inject postback javascript using GetPostbackEventReference) but maybe there are some better ways to do this? Or maybe there is some other way to avoid double postbacks?
View 4 RepliesI've searched high and low for some resolution to this problem. Hopefully someone here can explain!!I create a usercontrol that uses .NET web controls, but I want to create a smoother user experience by avoiding full postbacks, so I write some JQUERY to capture click events on the client and in this way do the processing without going back to the server.
$("#tblLedgerEntries :checkbox").click(function () {
var value1 = $(this).closest("tr").find("td.invoiceAmount").html();
var value2 = $('#<%=hdnTotalToPay.ClientID%>').html();
CalculateTotalPayable(value1, value2, $(this).attr("checked"));
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I have an input box that I don't want postback to occur on someone striking the enter key
I want the javascript event to take place instead.
<input
type="text"
id="addressInput"
onkeydown="inputenter()"
autopostback="false"/>
function inputenter() {
if (event.keyCode == 13) {
seachLocations();
return false;
}
else {
return false;
}
}
I have an application that is supposed to accept checks. The user has 2 radio buttons. The first radio button has a drop down list associated with it which contains the masked numbers of their previously used checking accounts.
The second radio button has three text boxes and an image of a check associated with it.
When a user hits this page, the three text boxes and the check image associated with the second radio button are disabled. Then, if the user decides he/she wants to use a new checking account, they can click the second radio button and that fires the Javascript that enables the three check boxes and the image of the check associated with that second radio button. If they click on the first radio button, it will re-disable the text boxes and hide the check image associated with the second radio button.
The problem happens when I do my server side validation. After validating all text fields, if there is a problem, I just fall out of the bottom of the code, the page posts back and the labels above the offending text fields show an error message.
One caveat: The Javascript that is supposed to fire on the OnClick event for the first radio button fires and the text fields for the second radio button are disabled. The user can click on the second radio button and the fields will enable, but this is very clunky.
Here's the enable code where I am injecting the Javascript:
Private Sub JavascriptInject()
Dim sEnableControls As String
Dim sDisableControls As String
[Code]....
I have a div where I put a lot of stuff on runtime to construct a chart. The user should be able to copy the chart to another div (innerHTML) and then make som adjustments to the original div, which causes a postback. Of cours the cloned div comes back empty.
So I'm thinking of putting the entire innerHTML in a session variable at page_unload, but then I run into the validation problem. I've tried using a hiddenfield as an in-between control, but it's the same, and it seems you can't use the CausesValidation on that control. I've also tried a regular asp:textbox, but the CausesValidation doesn't have any effect.
How to do this? Or any better way all together on the copy-chart issue?
How Can I retrieve values from TextBox before RowUpdating function is fired? I have GridView with update panel which is sorted by two dropdownlists and I need autopostabacks to filter and bind gridview. Now I want to update row in my gridview but I can't get values from controls I'm getting old values from database. Do you the way that I can use values from controls before updating the row?
View 5 RepliesHow do I disable a button in an ascx page? I know how to do it on an aspx page with:
btnSave.Attributes.Add("onclick",
"this.disabled=true;this.value='Please Wait...';needToConfirm=false;" +
ClientScript.GetPostBackEventReference(btnSave, "").ToString());
But the ClientScript function is not present in the ascx page.
I have some problems with trying to read values on a postback. The fields, textboxes and dynamiclly created fields doesn't keep their values or I'm doing something wrong when trying to read the values. I get an error message:
System.NullReferenceException was unhandled by user code
Message="Object reference not set to an instance of an object."
Source="App_Web_m-6qot6q"
StackTrace:
at Sikt.RäknaVärden() in C:Visual Studio 2005WebSitesKalibreringscertificatSikt.aspx.vb:line 688
at Sikt.Button1_Click(Object sender, EventArgs e) in C:Visual Studio 2005WebSitesKalibreringscertificatSikt.aspx.vb:line 892
at System.Web.UI.WebControls.Button.OnClick(EventArgs e)
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Also, I get some other errors, such as "Name 'DropDownList1' is not declared" and "Name 'Label1' is not declared" I'm used to classic ASP and this is my first .net 2.0 (vb) application. I'm including some of the code (should be all relevant code)
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I just uploaded an asp.net webforms site I've been working on to my ISP's servers. I have a simple page that allows users to enter schedule data. The problem is that when the user clicks the Add button and I try to process the values they've entered in the textboxes and dropdownlist in the click event handler, all the values are blank. For example, there's a DropDownList called uxStartTime on the page and after postback uxStartTime.SelectedValue is blank. However, the Response.Form[uxStartTime.UniqueID] has the proper value. I have EnableViewState="true" in the aspx page. This all works fine on my local machine, just not on the server. Can anyone tell me what's going on? I can use the Respons.Form syntax, but it's a little more verbose and prone to typos.
View 4 RepliesI had a page inside a master one the page is like
[Code]....
[Code]....
and my code behind
[Code]....
On debugging I noticed that no values are taken from textbox and in postback the textbox is cleared.
I worked in viewstate stuff and enabled it for the textbox and page, but with no results.
I am using string builder class to store the dropdown selected values .. I am doing this on the selected index change event .. The problem is the previous value does not retain ..
sb.Append(degreedropdown.SelectedValue+"-");
string nums = sb.ToString();
string pattern = "-";
string[] substrings = Regex.Split(nums, pattern);
arraylength = substrings.Length;
I have multiple update panels with various asp buttons on a single page. I want to disable the buttons which caused the postback in update panel untill it completes.
Is there a way to avoid using a third party control for this? through JQuery or any other method ?
