Button Click Return Null Value?
Jul 4, 2012
this code runs fine for single row <tr> </tr>, but when i use multiple table rows as given below javascript alert box shows null value ,, how can i correct my script for it ??
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>Untitled Page</title>
[Code]......
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Oct 26, 2010
I have two buttons on my web form. When clicking on the first button, the event does not fire. Here's what I've placed in the click event handler:
protected void btnRFC_Click(object sender, EventArgs e)
{
string strDOB = drpDay.SelectedValue + "/" + drpmonth.SelectedValue + "/" + txtyear.Text;
string strRFC = CURPRFC.CalcularRFC(txtfirstname.Text, txtmiddlename.Text, txtlastname.Text, strDOB );
txtrfc.Text = strRFC;
}
strDOB is needed to get the date fields into one string used in CalcularRFC for the date value. The event handler for the second button is too large to post, but currently works as expected. But, the above handler does not return a value to txtrfc. Can someone point me in the right direction?
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Apr 29, 2010
I got a datapager control with four buttons First, Previous, Next, and Last. The datapager control is set up so it returns ten records. When I open the web app with the browser it returns ten records and the datapager controls buttons; however when I click
Code for the pager control:
<div style="padding:10px;text-align: center;">
<asp:DataPager ID="DataPager1" runat="server"
PagedControlID="ListView1">
<Fields>
<asp:NextPreviousPagerField
ButtonType="Button"
ShowFirstPageButton="True"
ShowLastPageButton="True" />
[code]...
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Mar 17, 2011
I have a rather large formview that asks for a variety of input values (physical totals vs pos report totals). I have created vb code to calculate the differences and subtotals of various types prior to inserting the data so people can check for entry errors.
Its a closing reconciliation form. Here's the problem: If they forget to enter 0 in a field that doesn't have any totals, a big ugly error message displays. I would like to avoid this. I can tell them until I am blue in the face to remember to enter 0 and not leave any blank fields, but realistically its going to happen and I need to handle it in the programming.
I have been struggling to either default the values to zero to start with, replace a null textbox with 0 before the calculate runs...but I can't get anything to really work. What is the best way to handle this?
Here is the aspx page:
[Code]....
And the code behind page with working "Calculate" as long as fields are not left blank (I took out all the test code that made it not work at all)
[Code]....
Finally, the error message I am getting is the following:
[Code]....
I can't seem to find the right combination of programming to account for the "" string to be 0 so that it will add or subtract values in my calculate. I have my sql table setup with default values of 0 so if a field is left blank it will be entered into the database as 0 and not null. It is really just for my inserting of a reconciliation and the running of Calculate Totals to double check their work prior to inserting into the database.
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Oct 15, 2010
[Code]....
I have created a back button on my asp page. However, I would like this back button a a sinlge click to return the user to the page 2 pages before. I have tried to enter the history.back(2) but with no luck it does not work.
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May 28, 2010
I have a Table, which contains a list of league players. Each season, we record their Points per Dart. Their total PPD for that season is stored in other tables and extracted through other queries, which in turn are imported to the master table "Player History" at the end of the season for use as historical data.
The current query retrieves each players PPD for each season they played, when they played last, and how many seasons played.
The code for Last season Played has become too long and unstable to use. it was originally created, and split into two separate columns because a single SQL was to long. (LSP1) and LSP2) which work, but as I add seasons, Access does not like the length of code.
In short, i need to find a more simple code that will look at each row, and look in that row for the last non null cell and report which column that last non null value is in.
So if a player played seasons 30 & 31, but did not play 32..but did play 33, the Column with the code should be titled Last Season Played, and for that Player, it would state "33" in that cell, indicating that this player last played season "33"
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Jun 8, 2010
I'm using a custom ashx HttpHandler to retrieve gif images from a database and show it on a website - when the image exists, it works great.
However, there are cases when the image will not exist, and I'd like to have the html table holding the image to become invisible so the "image not found" icon is not shown.
[code]...
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Dec 19, 2010
below is my query have one problem:-
[Code]....
In first time My sqlcommand returns null coz if its no data in table..
So on that time i need to show B0... how to do this
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Feb 27, 2011
i want my query to return results where the field address is not empty or null
however, the query i have is still returning results where address is empty i.e. ' ' .
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May 5, 2010
I want to use session in thread class but it return null in parent that is the page class.
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Mar 16, 2010
In reference to this question that I just asked, [URL] it appears that for some reason, an empty text box's value is not being fed to SQL Server as NULL, as it ought to be.
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Mar 27, 2010
On my Search page, I have a search textbox, four drop-down lists and a "Search" button. If I use only the drop-down lists and click the "Search" button, results are immediately returned. However, if I enter text into the textbox and click the "Search" button, nothing happens until I click the "Search" button a SECOND time.The processes that occur for the latter scenario are as follows:Text entered into textbox, and Search button clicked:On FIRST click attempt:
1. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Search.aspx is called
2. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Main.Master.vb is called
3. Process stops! No results
On SECOND click attempt:
1. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Search.aspx is called
2. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Main.Master.vb is called
3. Protected Sub SearchSubmit(ByVal sender As Object, ByVal e As EventArgs) Handles btSearch.Click for Search.aspx is called
4. Search continues and completes.
So, why will the 3rd step not kick in until clicking Search for a second time
[Code]....
If I reach this last Sub, everything else beyond this works fine.
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Mar 22, 2010
I am having a trouble while trying to create an entity with a custom view modeled create form. Below is my custom view model for Category Creation form.
[code]....
When i click on save button, it doesnt bind the category for me because of i am using custom view model and strongly typed html helpers like that
<%=Html.TextBoxFor(model => Model.Category.OrderNo) %>
My html source looks like this
[code]....
How can i fix this?
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Sep 4, 2010
I am using Crystal Report on my ASP.NET Fw. 3.5 project. My report contains 100+ pages. When I click on next page button on crystal report viewer control my whole page gets postback to server and then second page appears. This take same time when first time report gets loaded.
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May 18, 2010
I created a gridview and bound it to a datasource, I had some problems that do not relate to this post.
then I created another datasource programmatically and deleted the old one,
and I bound it using gridview.DataSource = source.
now when I click the edit button the first time nothing happens, when I click edit on another row, the previous row I clicked on changes to editing mode and shows update cancel links, then when I click a 3rd one, the 2nd one changes to editing mode etc...
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Mar 24, 2011
I have to click twice on button control to fire an event.
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Oct 25, 2010
i want to add a confirmation msg when click a button to delete my record, i cannot add the on client click msg on design page, due to i need do the checking for the checkbox before pop up the confirmation onclientclick msg.
[Code]....
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Apr 29, 2010
I find a special circumstances as follows:
My web form contains a postback button. The button will postback and call a server-side method. The method will process something that may spend about 20 seconds. However, user may try to click the button several times within the waiting period. The sequential clicking may cause the first running method incomplete and stop, since the second click postback will dominate the method and start again. How can I solve it?
PS: It can not use client side script to disable the button, because it requires to use some server-side validation within the method.
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May 4, 2010
Background: I am customizing an existing ASP .NET / C# application. It has it's own little "framework" and conventions for developers to follow when extending/customizing its functionality. I am currently extending some of it's administrative functionality, to which the framework provides a contract to enforce implementation of the GetAdministrationInterface() method, which returns System.Web.UI.Control. This method is called during the Page_Load() method of the page hosting the GUI interface.
Problem: I have three buttons in my GUI, each of which have been assigned an Event Handler. My administration GUI loads up perfectly fine, but clicking any of the buttons doesn't do what I expect them to do. However, when I click them a second time, the buttons work.
I placed breakpoints at the beginning of each event handler method and stepped through my code. On the first click, none of the event handlers were triggered. On the second click, they fired.
Example of Button Definition (within GetAdministrationInterface)
[Code]....
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Jan 18, 2010
I have only a textbox in a page. If I type something inside the textbox and click carriage return key (Enter), the page refreshes and the textbox becomes blank again.
What is actually happening here? Why the page refreshes? Is it the default property of asp.net?
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Aug 21, 2010
i am having 2 imagebuttons a gridview and a button. Now if i clicked on Image button i will show a grid. Now under button click i would like to capture which image button was clicked if 1st image button is clicked i would like to some values and if 2nd one is clicked i would like to show another
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Sep 14, 2010
In ASP.NET My button click event doesn`t work on first click. But it works on the second click only.
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Jan 31, 2011
public
partial class
_Default : System.Web.UI.Page [code]....
in above code when i click button1 DTNav is null .........
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Dec 21, 2010
I want a confirmation password message box on a click button event. if password is correct then it will perform some business rule action. other wise it will show a message you are authorised for it.the button will be server side control at the webpage home.aspx
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Apr 3, 2010
I have a Master page and a user control on it.and i have a ASP Button on Usercontrol,the has to fire when ever i click on thats the default behaviour ..Now when the home page of my website loads and then i click on the button ,It works perfectly fine but when i navigate to other pages which have same master page the and then click on button the button does no trick!!
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