I have written code in ontextchange and made autopostback=true. When we give text in textbox and click on tab...on text change is firing and giving the alert. But when we give text in textbox and click directly on button, It is not giving any alert and directly saving with empty data...(We have written code to check duplicate values in ontextchange event).
Please help me on this..
If I understood you correctly, It seems your button click event is taking precedence over your onTextChange
I suggest you to disable your button and enable it in OnTextChange event, So that both of your requests will not overlap.
Related
I have a textbox and a button with an onClick event connected to it, and when the button is clicked once I want to change the text of the button and clear the textbox. How can i accomplish this?
If you want to do this on a postback (a complete refresh of the page), simply put code in your button click handler to set these values. For example, textbox.Text = string.Empty;
If you want to set it on the client side (without refreshing the page), then you'd need to use client script such as JavaScript.
This needs you to know about TextBox and its properties. Normally the value of a textbox you use its Text property as TextBox1.Text. In your case you put this statement in the button's click event
string txtValue=TextBox1.Text;
TextBox1.Text=string.Empty;
To see how to use TextBox and its properties. This can help
Good day,
I have a problem in a .NET page where I am using an asp:textbox in combination with an OnClick action on a link button.
What happens is that after text has been entered into the textbox, if you directly click on the link button, more often than not the textbox is considered to be null.
If you click off the text box first then click the link, all is well and the save function performed by the link button proceeds as expected.
My assumption is that there is a lifecycle event that is being missed, or not applied which is not binding the text to the textbox for use in the codebehind when the link button is clicked.
The question is, what can i do to enforce that binding short of doing something like adding an onkeypress event to the textbox to force a postback.
There must be a more elegant solution.
Thank you in advance for your help.
Do you have initializations on your textbox inside Page_Load event? If so, use IsPostBack=false and put the initialization inside.
If IsPostBack =False Then
TextBox1.text=""
End If
I've got an ASP.NET application that I'm accessing through Google Chrome. On a particular page I've got an asp:TextBox with a OnTextChanged event that recalculates a few other fields on the page. I've also got an asp:LinkButton with an OnClick event that saves the changes to the database.
I was facing a problem where the user left the TextBox by clicking on the save button. The button was firing before the TextChanged event so the changes were not being captured in the save. I fixed this by duplicating the TextChanged logic at the beginning of the save method. Did some testing before I committed these changes and everything was working fine.
But now my tester is facing a different problem. When he changes the text field and clicks the save button, the OnTextChanged event is firing to update the other values on the page but the OnClick event for the save button is not firing at all. He has to click the save button a second time to get the OnClick event to fire. I tested the same functionality on my machine and it's still working fine for me. He and I are looking at exactly the same page in the same environment with the same database. I had my tester clear his cache etc. The only difference I can find is that my Chrome version is "14.0.835.202 m" while his is simply "14.0.835.202".
Are there any known issues with Chrome and ASP.NET where event firing can be non-deterministic or something? Anyone have any other idea why this might be happening? Thanks for your time!
I believe this is a known issue.
One option is to disable the button (client-side) when the user is typing in the TextBox, and enable it after the TextChanged event completes.
Another option is to remove AutoPostBack="true" and use AJAX instead.
I have a text box which I have extended with the AJAX Control Toolkit CalendarExtender. When I click on the text box, a calendar appears and I can select a date which then is added to the text box. So far so good.
This text box is used on a Grid View to filter the results in it. This was setup when I added a data source to the grid view.
This works fine other than the fact that after selecting the date in the date control, I then also have to hit enter in the text box for the grid view to update. Can I get to update as soon as the date is selected rather than having to press enter?
This is because the TextBox_TextChanged event is not being raised. This can only be raised when focus is taken off the textbox, and since focus was put on it, the text has changed.
One option would be to use jQuery to force a postback whenever text is changed in the textbox.
Something like:
$("input.textbox").change(function(){
__doPostBack();
});
This article may be of use for forcing Post Back from javascript:
http://weblogs.asp.net/yousefjadallah/archive/2010/06/27/insure-that-dopostback-function-implemented-on-the-page.aspx
If you want to refresh your grid without pressing the Enter key,
put your textbox's autopostback property to true.
Hope this helps.
actually i want to do tabbing in a Gridview rowwise i have done it.
Problem is that i have done by using onTextChange event now whenever i hav to do tabbing
i have to text and then enter the tab,then only it works and my requirement is that tab should be done for without entering the text also
So as i'm having all the code i want to forcefully do this onBlur event. ??
You could probably write just a little javascript(using jQuery) so that when the onblur event occurs that the txtChanged event is called on the client side. Something like
$('#IdHere').blur(function() {
$('#IdHere').change();
});