Web Forms :: TextBox_TextChanged Not Firing When Text Is Changed In TextBox?
Jan 31, 2010
I have a bunch of controls in a Content Page ( A registration page, right) to gather information concerning a user. One of controls is for the UserName. I want to check that the UserName is unique so I place code in the TextChanged event of the TextBox control for the UserName. I have abreak point set in the event procedure and it never gets hit! This is my first attempt at using Master/Content pages. I have looked in the MSDN Library for many hours concerning this problem without any success. I need to know how to check whether the UserName is currently in an Access database.
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Similar Messages:
Jul 2, 2010
i have a strange requirement, let us suppose my screen looks something like this
when im changing value in "Value 1", the summary textbox value must be changed to "N/A". check the image below
as you can see from the image, the cursor is still inside the "Value 1" textbox, im still typing the text in "Value 1" textbox, and i want "Summary" textbox text to be changed to "N/A".
if nothing is changed in "Value 1" then i dont want to change the value of "Summary" textbox.
i want the same functionality for "Value 2" textbox
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Oct 28, 2010
I am generating UserName based on FirstName.LastName after that I am hitting the database and checking if this username (Like AAA.BBB) exists or not if not then I am generating email address, if yes then it is thorowing error which is correct. And after this when I changed the username (Like AAA.BBBC) and hit enter or tab then again it should check the database and generate the email but it is not doing any thing means I think I am missing the cursor control or Second time TextBox_TextChanged event is not firing.
[Code]....
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Dec 25, 2011
I am calculating discount at text changed event when user enters the discount%. To edit when i load the data from table using dataset i do not get the correct data as it is in the database. For ex if quantity is saved as 5000.00 in table and when i try to fetch it.. I am getting it as 500000. Instead of 5000.00. Is it because of text changed event? How do i resolve this?
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Jan 15, 2010
I have a textbox which is read only and there is a calender besides the textbox.When the user selects the date in the calender pop up, the text in the textbox is populated but it doesn't trigger the text change event.Can anyone tell me how to trigger an event when the text is changed on the textbox?
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May 31, 2012
How to validate ddmmyyyy dateformat in the textbox on the textchanged event with split method in asp.net 2.0 ....
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Jun 17, 2010
I've a textbox in grid view control. When user inserts some value in textbox a confimation message should be displayed to user. eg. "Do you want to update record?". if user clicks on yes/ok then some code should be executed else if user clicks cancel/no the return to same page. I've tried using
ScriptManager.RegisterClientScriptBlock(page, page.GetType(), "key2", "confirm('Do you want to update?');", true); on text changed event of textbox. But was not able to achieve desired result.
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Jun 16, 2015
need to add textbox in gridview and write code in textchange event in asp.net..i show the data in gridview if i click the button i show the textboxes but i need to write the code in that textchange event in that
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Mar 20, 2011
I have a simple query based on the index changed event of a dropdownlist in ASP.NET. The scenario is i have a dropdown list bearing a collection of items (say ONE, TWO, THREE, FOUR, FIVE) with the default value selected as 'ONE'. Now, when the client changes the index (say the client selects 'TWO'), a confirmation box is prompted asking 'Are you sure want to change the index?' with the buttons YES & NO. Now, the problem is, if YES button is clicked then its working fine as the index is changed. But when NO button is clicked in the confirmation box, I do not want the index to be changed to 'TWO' and it should be holding the previously selected value which was 'ONE'. How can I do this? For which event should I write the code, as I cant think of writing the code for the IndexChanged event because here the index change has already occured and since there is no 'IndexChanging' event in ASP.NET, where shall i write the code
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Oct 7, 2010
I have two pages ,On click on one button I have to redirect the screen to another page.and after clicking on redirect button page will get redirected to old page.
Problem: while coming to old page i have to set one radio button selected amnog two.I have acheived it through session.But the problem,is after coming back once i selected the radio button which is not selected. its not firing the selected index changed event.
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Aug 11, 2010
I have a list box with data coming from the database. Above the list box I have a text box. If the user enters some text in the text box,then the data in the list box should be filtered as per the content entered in the textbox. In my page, i have about 7-8 such similar textboxes and listboxes. So I want to implement a common function which can be used for all the text boxes in the page. I tried to achieve this in textchanged event and javascript but sometimes not working. Is there any other simple way except javascript? Is it efficient to use java script in this scenario? Need your valuable inputs.
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Dec 4, 2010
I have used below code.
<asp:RadioButton GroupName="grpAssoc" ID="rbtEvery" runat="server" Text="Everyone"
onclick="return doChangeAssociationType(0);" AutoPostBack="True" oncheckedchanged="rbtEvery_CheckedChanged"
/>
but oncheckedchanged="rbtEvery_CheckedChanged" not firing even javascript function returns true
How to fire the event?
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Apr 1, 2011
Here is my code:
Protected Sub BookingsGV_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles BookingsGV.SelectedIndexChanged
BookingID = BookingsGV.SelectedValue
Dim query = From a In db.Approvers Where a.ApprovalStatus = False And a.BookingID = BookingID
Select a.ApproverEmail()
ApproverList.DataSource = query
ApproverList.DataBind()......
When I click on a row for the first time it is selected but nothing fires and my details panel is not displayed. When I click for the second time I get the expected results.
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Jan 22, 2010
I'm sure I'm missing something extremely obvious here, but at this point I can't see it so I need the help.Anyway, I've got a repeater inside of an UpdatePanel. As of right now, I've stripped it down to this, just to try and isolate the problem:
[Code]....
Whether I add the handler during itemdatabound or I add the handler within the repeater itself, it doesn't seem to matter...the event itself doesn't fire. The AutoPostback itself seems to fire, but the event itself doesn't.
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May 8, 2010
I am facing one strange problem,I have a gridview in which the last two columns have checkboxes and on those checkboxes click event I am doing some database operations.I also have one checkbox that is outside the gridview which actually shows or hides some of the gidview columns.This was all working well but now I have shifted that grid to a user control because I have to use it in two pages.The problem now is,When the page first loads and I click the check box or any control in the page that is outside the grid then it works perfectly.But once I click any of the check box within grid view column then its behavior chages, now even if I click the checkbox that is outside the grid then also the checkbox_CheckedChanged event of the checkbox that is whithin gridview is fired.That checkbox event then behaves something like a page_load event that is called for every page load and for every event with in the page after it is called once.
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Jan 8, 2013
i've dynamically created new rows on button click in gridview with 3 dropdownlist.for the first default row the selectindexchanged is firing and on pageload 1st ddl is loading with values and basing on selection the second ddl is showing values and third ddl is showing basing on second ddl. Now, when i click add new row, a new row is created with 3 ddl's ...1st one is showing properly but when i select from that ddl ,it should show data accordingly but its not showing particular data but showing all realted data from DB.same for 3rd ddl.
Also when new row is added and the first ddl is selected on postback the second ddl data is refreshing..
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May 28, 2010
I am using telerik control to implement my project. For the validation i use asp.net validation controls. Now i need to check duplicate name for name field in the database. I have 2 options1. in the save button click event or custom validator2. after enter the name i can display the error.Here in the second option i have doubt. How can i achieve this ? using textchanged? i am using radtextbox. when i try textchanged some issues in validation controls because of ajax.I am using asp.net 3.5 So i got one new validator named Dynamic Validator. What is the purpose of this. i dint got any good articles to study abouyt this? Can i use this validator here. I read the following forum[URL]but not got any example for dynamic validator. I thought to implement the scenario like some registration form (yahoo) did.When username enterd just diaply duplicate
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Jan 26, 2011
in my webpage two textboxes and one button is ther in that both textboxes having textchanged events TextBox2_textChanged event will fire k it work am clcking submit button textbox1 event fired i wnt to firing
button click event
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Sep 30, 2010
i have a textbox and a button.when the page loads, the textbox text read "hello"now when a user changes the text and then presses the button which causes a postback, how can i check if the user changed the value of the textbox or not?
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Sep 21, 2010
i have a custom validator i have written a javascript method for this validator;this validator has been pot on a textbox that has auto post back is true .... now this validation fires when the post back happens...i dont want it to fire on the post back but only on button click
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Mar 26, 2016
Here the form code -
<div class="textmid2">Adviser Photo :</div><div class="textright">Adviser Sign :</div></div>
<div class="Row"><div class="view_img1">
<asp:ImageMap ID="imgADphoto" runat="server" Width="140px" Height="150px">
</asp:ImageMap> </div>
<div class="view_sign1">
<asp:ImageMap ID="imgADsign" runat="server" Width="200px" Height="70px">
</asp:ImageMap> </div>
Code Behind for form code -
//code behind//
protected void txtCID_OnTextChanged(object sender, EventArgs e) {
SqlConnection cnn = new SqlConnection();
cnn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
cnn.Open();
[Code] .....
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Jan 25, 2010
I have SSRS report and have customized the toolbar with textbox. User can enter the report page number and can press enter so that report will generate with report number. I have made autopostback=true to the textbox and below is my code in textbox_textchanged event
[Code]....
Suppose if I enter 2 in textbox and then press enter,it is not firing and if i press enter second time it is working. From page 2 if i enter 1 in textbox and press enter also it is not working.
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Nov 3, 2010
How do I check if a textbox in a formview has changed when I click "Update" (in Edit mode)? TIA. I use VS2008 and Framework 3.5.
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May 27, 2010
I'm new to ASP.net 3.5 and testing functionality before developing an asp.net web site. I created a page with a formview. I added several text boxes. I created an event on the FirstName_TextChanged event and added a stop in the sub. When I open the page in the browser and type in some text in the FirstName and press tab, nothing seems to fire.
1) Is this supposed to fire on the client side when text is changed?
2) If so, would the vb.net code entered work like Javascript code on the server?
3) If so again, is it possible to update another textbox based on the text entered into the FirstName on the Client Side (would do this in Javascript in Classic ASP)?
I think I'm totally confused. I've been searching web for article about how to do this.
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Oct 25, 2010
I have a gridview that is being databound by an SQLdatasource and on RowDataBound i am doing a calculation and then setting
e.Row.cells(17).text = Result
However, when I go to sort it on the website it sorts it based off the previous values.Cell(17) from the datasource reads in all 1's. The numbers I change it to range from 0 to 15. So when I click sort nothing changes because it sees it as all 1's.How can i make the gridivew sort off the changed text values?
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