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 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 have an ASP.NET TextBox with TextMode = TextBoxMode.MultiLine that is used within an AJAX Update Panel. The .Text value has been pre-set to a value that has multiple lines.
When using Chrome(7.0.517.41) or Firefox(3.6.11) working with the controls posted back value on the server the carriage return is lost if the user hasn't edited the pre-set value.
E.g.
Initial .Text value set when the page loads:
[code]....
i have added one textbox as a template in my gridview.i want to get the values of textbox to a string when i enter values to the textbox.
View 1 RepliesI have 2 textboxes and a submit button inside a .net composite server control. I tried to only postback when submit button is clicked. I set autopostback = false for both textboxes. But either one still trigger submit button's onclick event by hitting "Enter" inside textbox. How can I stop postback by enter key?
View 2 RepliesHow to add two text box values and equating with other textbox and disabling the button.
I have 3 textboxes shipQty1, shipQty2,Orderqty and a button i.e. CustomerReport.I want disable the CustomerReport button when this expression succeeded shipQty1+shipQty2=Orderqty. if orderQty is equal to ship1 and ship2 then CustomerReport button should be disabled.
I've done a bit of development with C# applications but not much with ASP.Net so if this is a trivial issue. I have a webform that has textboxes for password, phone number and a listbox for a provider. When I load up the webpage, I populate with the textboxes and listbox with selections from my SQL database. This works correctly. Then I allow the user to change data in any of controls. In the event that is triggered by the Save button, the values in the textboxes and listbox are the data values that were populated during the loading of the page, not what the user has typed in.
What am I doing wrong? I've attached my 2 pages of code.
Here is the .aspx
[Code]....
Here is the .aspx.cs code
[Code]....
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 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)
[Code]....
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 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 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 four radio buttons and one text box..i have to check the selected radio button value equals to the textbox value..
View 3 RepliesOn a page, I have a couple of textboxes. I use JQuery to convert the text into currency format and tinally total these values and submit the form after changing. But I notice that the new total value is not what gets saved when I click Submit. The total textbox' s data changes on postback, but this doesnot happen with the other textboxes. Why would this happen? These textboxes are not in any update panel nor is the Submit Button.
View 4 RepliesI am having an aspnet panel in my aspx file.There is an ultraweb tab placed inside this.also I am having a button outside this panel.Within the tab I have a textbox whose readonly property is
set to "true".Whenever I click the button a javascript function is called .On clicking 'OK' in the popup ,the textbox values are lost.Is there a way to retain these values?
i want to hold data at runtimeEx-I have a 3 Services A,B,C and in A,B,C contain services list,then if user select A service and 3 services in a A Listagain user select B service and 2 services in a B Listand again user Select C Service and select 1 services in a C listSo How i can hold data A,B,C services ID'S value with respect to services listID'S value at runtime.
View 1 Replieshow do i set focus to a textbox on a postback
View 1 RepliesBasically what I would like to be able to click in a textbox and it cause a postback. Not TextChanged, but when the TextBox gains focus. Any way to do this?
View 5 RepliesI'm having a little problem with textboxes automatically resizing after postback.
I have a textbox on set with a width of 90%.
Now the text box works fine but if I have something in the textbox that is longer than what it can display, when I save and the page reloads with the string in there the textbox automatically makes itself larger and becomes bigger than the 90% that I set and goes off the page, a scroll bar appears.
Is there a way to turn this off? I have been searching and can't seem to find anything..
I realize that if I set it to a fixed with this problem goes away if I set a fixed width but I need it at 90%.
Also, I have some multi-line textboxes and they have the same issue, even though it's multi-line, it still becomes a little bigger wrap less times than it can.
i have a gridview
[code]....
The values in the taxtbox are added and while display in footer template it is not assinging with the added value.
it gives me error:
object referrence not set to instance of object.
How to assign the value(total values added from each textbox) to the'txtTotal' Textbox in gridview
i.e in this line
tostring = ((TextBox)gvSales.FooterRow.FindControl("txtTotal")).Text;
Im binding the gridview in page load.After i click the link button in the gridview it displays another gridview.I have a checkbox in that gridview.I check some of the checkboxes.while i click the save button i want to get that checkbox state whether its checked or not.Bt for me its showing no records in the grid.How do i persist my data and get the checbox's state.
View 3 RepliesI'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 know that on a postback all controls are rerendered.My problem is that I have an page who holds panels who holds web user controls who holds itself x time an panel with an web user control.I have an action that takes an postback and it resets all the design of those web user controls, but not the controls of the main page.What can I do to save the current state of my page ? The current panel that is visible etc.I tried a simple update panel without success by setting UpdateMode to conditional and ChildrenAsTriggers to false.
View 5 RepliesI have a form with 2 sections. The first one contains some radio buttons. The second one contains a checkboxlist. When we change the selected radio button then it modifies the elements in the checkboxlist. For this I setted the radio buttons with autopostback, and in the code behind (in OnLoad) I populate the CheckBoxList depending on the selected radio button.
This work fine.
The problem is that I also have a button at the end of my form which post the data of my form in another page (with PostBackUrl). Then in that page I would like to retrieve the values of the checked checkbox. But I can't find how to do that. In the Request.Form I don't see anything.
I searched on the web but I didn't found really a solution.
i have 2 template field columns time and total_time in a gridview.. time column has a label in the item template and a textbox in th edit item template..
similarly, total_time has a label in the item template and a textbox in the edit item templte..
what i need is, when the user enters a value in the time textbox,it must get updated in the total_time textbox.. and on edit,when the user changes the value of the time textbox ,dis value must be ADDED to the total_time textbox.. both should be displayed in the label also..