Unable To Get The Value Entered By User On Button Click Event
Mar 31, 2011
I have few textboxes on a page which are loaded dynamically on change of text in dropdownlist. The user enters values in these textboxes and clicks on a addnewitem button. In the code behind I want to capture the values entered in these textboxes. But I get the value as empty.
On Pageload mthd there is nothing which is referencing to createdynamiccontrols method.Then I have
[Code]....
Firstly i am getting object reference not set to an instance of an object when the createchildcontrols method is called the second time and also if I dont have the createdynamiccontrols method in additem click event, controls are no longer tehre...
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Jul 28, 2010
I am adding some dynamic image buttons to a form in my code behind (vb.net) and added a click event handler, but it never fires. Also when I click on a button the page posts back and everything below my update panel disappears.
code behind
[Code]....
Click handler
[Code]....
Here is my aspx page code.
[Code]....
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Jun 21, 2010
i place the onClick event in asp buttons. but it is showing error like
Too many characters in character literal
my code is
<asp:Button ID="Button1" runat="server" Text="Button"
onClick="alert('The button was clicked.');" />
actually my requirement is when i click on the button i want to display some message and when we press ok then it is redirect to another page is it possible
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Oct 7, 2010
I am developing a web site to display some data that is inside a database. To do this I've created an ASPX web page that opens a connection to a database and retrieves the desired data. After that it populates an asp:table object dynamically.
The problem is that some of the fields that are retrieved from the database are too large to be displayed on the web page, so I decided to make a popup that would be able to display just the desired field.
To do this I've added a button to the asp:table so that when the user clicks it the popup would appear with the contents of the field. However what is happening is that when the user clicks on the button, the page just gets reloaded and the Click event handler is never called.
Below is the code in which I add the button to a TableCell, and the TableCell to the TableRow collection:
[Code]....
note that the popupHandler is a delegate to the function below. I am using it as a the Click event handler for testing purposes.
[Code]....
Also you should be aware that the table is only populated when the user clicks on a "Query" button inside the main ASPX web page, this means that I only populate the table after the PageLoad event has occurred.
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Dec 5, 2012
i have datalist and on button click event i check the checkbox is checked or notfor this my code is
<asp:DataList runat="server" ID="dlstproductsize">
<ItemTemplate>
<input type="checkbox" value="<%#eval("size_id")%>" id="chksize" runat="server" /> <%#Eval("name")%>
</ItemTemplate>
</asp:DataList>
If chkallowsize.Checked = True Then
For Each item In dlstproductsize.Items
If (CType(item.FindControl("chksize"), HtmlInputCheckBox)).Checked = True Then
ocommon.ProductMapingInsert(uniq_id.Text, CType(item.FindControl("chksize"), HtmlInputCheckBox).Value)
End If
Next
End If
i get the error like object reference not set to the object
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Nov 3, 2010
There are two user controls, which are built dynamically.
In the first control, I am adding a link button, and trying to attach a click event on the same. But the event is not fired.
Actually the main goal is, when the link is clicked, based on which one is clicked, I need to show second control (the values on the new controls are based on the first controls link button that is clicked).
If I use javascript, I will need to use ActiveX or is there any other way to instantiate the second control using javascript
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Nov 4, 2010
I have a User Control that has been added to the page dynamically. When I click a button on that user control:
The button_click event is NOT being raised
The page posts back
The user control is removed from the page
Here's the button-click event on my User Control:
Protected Sub btnAddAttribute_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAddAttribute.Click
Try
Dim attrName As String = txtAddAttributeName.Text
Dim attrValue As String = txtAddAttributeValue.Text
'ADD ATTRIBUTE TO ATTRIBUTE TABLE
putSQLData("INSERT INTO OD_Attribute_Values (AttributeName, AttributeValue) VALUES('" & attrValue & "', '" & attrName & "'")...........
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Nov 23, 2010
I have a time on user control, and button on the web page. On perticular time I want to fire button click event.
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Mar 30, 2010
I have a user control that displays some database records when I first hit the page. When I click the submit button the page load event fires again, loading the user control again. Then the button click event fires inserting a new row in the database which is not shown on the page because the user control already did its stuff. If I could get the user control to do its stuff after the button click event I could then see the newly inserted row. I can do this by pulling the code out of the button click event and sticking it in the page load event. However, I think that would be bad code flow. How can I get the user control to do its stuff after the button click event has fired?
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Jun 9, 2010
Here is what i am trying to do I have a multiview and two views in it so based on click event the link the views change
[code]....
apparently they are not firing on first try. The reason i am doing this is the two views have tables with different images to be used in building my menu.
What am i doing wrong? or why is the click event firing on second try?
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Jul 31, 2010
I have a blank user control (child) and during Page_Load i create some text boxes and a button. I also add an event to the button.
I then load that user control dynamically from a placeholder in another usercontrol (parent). Both controls are rendered correctly but when i click on the button, the event isnt fired. how to handle the event?
Child code:
[code].....
If i use the child control directy (ie without the parent the control) the click event is raised and handled nicely. But when i use the parent control, the debugger wont even hit a breakpoint inside UpdateButton_Click().
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Jan 19, 2011
I need to render a particular partial view multiple times inside a view whenever user perofrm an action like button click event.How we do it in mvc?
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Mar 2, 2011
Here is my requirement -
1. I need to load a user control on link click event of a link button during postback of aspx page.
2. On button click event of a save button on that aspx page, I need to read the selected values from that user control on further postback.
If I write the loadcontrol code in link_click event, the control is not recognized at all in the button_click event. When I shift it to page_init and execute only during not postback, the user control loads with default values.
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Sep 24, 2010
Whats the difference between Button.Click Event and Button.Command Event in asp.net?
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Mar 26, 2016
i have link button at last of page when user click on link button it clicks more data.
what i want is when user reach on bottom so load more button click automatically.
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Mar 24, 2011
I have to click twice on button control to fire an event.
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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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Nov 17, 2010
i am currently developing an asp.net project. there is a previous, next, and cancel button that the user can utilize, but the problem is that everything is broken into controls so that if they hit the browser's back button it will reset everything and take them to the very beginning. i would like to capture the onbeforeunload event and trigger the previous button click event (i.e. treating navigation like clicking the previous button).
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Sep 29, 2010
I got an event handler like this, in this event, i wanted to call another button click event. How can I do that?
[Code]....
if (ds.Tables[0].Rows.Count == 0)
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Dec 28, 2010
i have an form with an button and some input controls. some time due to input problem i may get error after that if i refreshed the page then that time the button click event has fired, how to avoid this kind of bad event fire.
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Feb 18, 2011
I have a textbox with autopostback=true and a button to save the data in the form. Functionality works fine when entering a value in the textbox, tabbing out of the textbox and clicking on the save button. But issue comes up when entering a value in the textbox and directly clicking on the save button without tabbing out of the text box. In the second scenario, only textchanged event fires and save click event dosen't fire. What I was expecting was after exection of textchanged event, save click event should also fire. But this is not happening.
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Sep 24, 2010
I have write the code in .Net. When I click the Buttun then fired below event.
protected void ddldesignation_SelectedIndexChanged(object sender, EventArgs e)
{
Code.
}
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Oct 5, 2012
I am updateing my gridview using button click event but at the fisrt time it does not get updated first time but its works second time i dont know why . Dol u know how to genterate two button click event for the same button.Records never get updated on first button click event but its works on second button click event.
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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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Jul 13, 2010
I have one Button (Refresh Button), One ComboBox (containing DEV and UAT as its items) and a GridView on my asp page.
I am filling up my Grid with values from database on the ComboBox's 'TextChanged' event and Buttons's 'Click' event.
First time when page is loaded, there is no information in the grid, but when i choose DEV/UAT from the ComboBox 'TextChanged' event is fired, the grid is filled with the relevant data. That is what i want.
When i click the Refresh Button to refresh the data again, first comboBox's 'TextChanged' event and then 'btn_Click' event is fired.
I want then when a button id pressed only 'Click' event to be fired and not the ComboBox's 'TextChanged' event.
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