I have a div in which i have few text boxes and checkboxes, i wrote checkboxchanged event but it is not firing when i check or uncheck the checkbox i set the autopostback property of the checkbox = true but still no result. does any one have idea how to control this scenario.
View 6 RepliesI 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.
View 3 RepliesI am creating an array of checkboxes :
1. chkresponse = new System.Web.UI.WebControls.CheckBox[cnumber + 1];
for (int
i = 0; i < cnumber + 1; i++){
chkresponse[i] = new System.Web.UI.WebControls.CheckBox();
chkresponse[i].CheckedChanged +=
new EventHandler(chkresponse_CheckedChanged);
chkresponse[i].AutoPostBack =true;
}
2. thereafter adding them to a panel
Panel1.Controls.Add(chkresponse[n]);
3. then added the checkedchanged event:
public
void chkresponse_CheckedChanged(Object sender, System.EventArgs e)
{Label1.Text = "response";}
but the event is never fired. the panel is insdie an updatepanel.
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It works on Internet Explorer but I have few users who started to use apple's snow leopard and event is not at all firing on those browsers.
I believe some browsers have different JavaScript implementation
I am using a datalist with checkbox and datalist is in a panel. I am poping the panel by using ajax modal pop-up. When we check the checkbox the checkedchange event is firing. But, when we uncheck the checkbox the event is not firing. It is user control and it is in update panel.
View 1 RepliesI have a checkbox, textbox and requiredfieldvalidator inside the updatepanel. Once user checks selects
checkbox I am enabling requiredfieldvalidator.
I have one more textbox, requiredfieldvalidator, validationgroup and Linkbutton outside updatepanel.
Strange thing is Checkbox checked event not firing in some cases,
1. Check the checkbox (which enables requiredfieldvalidator)
2. Click the Linkbutton (fires two validators)
3. Uncheck the checkbox (which should disable requiredfieldvalidator)
4. Click the linkbutton again (again it fires two validator, which should fire only one validator)
Note: The problem only arising when I add javascript block to linkbutton in page load event.
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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:
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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.
I have a gridview called gvResults. In the gvResults_RowEditing event I add a row below the one selected. In that new row, which spans all columns, I insert a user-control. There are two buttons and some textboxes in the user control.
My problem is that when I click one of the user-control buttons it never gets to the button event handler, I think because the user control is not recreated on the page postback. How can I have the user-control events fire before the parent page events fire?
I tried using an update panel, but I still get the parent posting back before the user-control events.
i have repater and inside repeater i have checkbox
this is the code
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my proplem when i check checkbox this event checkBox_CheckedChanged its fired but when i uncheck checkbox its not fired.
I have a checkbox inside the item template of a datalist, dtlLate. I want to detect the checkbox change and execute a stored procedure. When I click the checkbox a postback does occur but the dtl Late itemcommand doesn't fire. I am not rebinding the datalist on postback. I have tried with viewstate enabled and disabled. I have used Bold text for the dtlLate in the content page and in the codebehind to make it easy to find.
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I've been reading up on the problems with dynamically created controls and how they have been solved. The posts I have come across are creating the controls in a panel or some other open place. I can't seem to get my checkbox to fire the event from inside a gridview. below is the code behind from inside the GridView PreRender event.
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..And the Checked Event..
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So after all this, nothing happens. I get the postback flash but my command inside the checked event doesn't fire.I tried putting the dynamic creation of the checkbox in Page Load with no effect.. I think because I can't place the checkbox inside the GridView under page load.
I've stepped through the code and verified this action. It gets to the end sub and just loops again. Also does it on the production server in IE and Chome (that's all I've tried). Here is the button definition on the actual ASP page:
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It goes through the code, sends me an email, gets to End Sub, then loops right back to the top of the sub and goes through the whole thing again, sending me a duplicate email, then exiting normally and sending them to the About page. This is the only code in the aspx.vb besides the class def and inherits statement.
I have a two web forms with griviews that are bound to SQL through the same query in a class. Both have the same columns and footers. Both have a checkbox control in each grid row. The checkboxes on each form have OnCheckChanged event handlers that I put in the code behind. In fact, the html code is almost the same on both forms, and the OnCheckChanged code is exactly the same except for the fact that I have named them differently. AutoPostBack is true for both checkbox controls in the gridviews. One works, the other doesn't. The difference between the two is that the gridview row checkboxes that don't work are burried in a MultiView. Could that be why the codebehind event handler doesn't fire? Here is the html for the column:
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Here is the html for the header of the gridview:
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Here is the codebehind:
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I have a ascx like below
<%@
Control
Language="C#"
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I have an asp.net 2.0 c# site.
In that site, I have a drop down list which allows the user to select from a number of forms with AutoPostBack set to true. I have a OnSelectedIndexChanged event on the dropdown which loads the correct control depending on which option is selected. See below:
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Now, that works correctly and loads the form as expected, but the server side onclick event within each ascx control now doesn't work. Is there some problem with button events when controls are added this way? When I add the control in manually to the page it works fine.
i'm creating and adding checkbox in my code behind to a parent control.
autopost back is true, it's posting back on being checked, but i'm not sure how to capture the fact that it's checked before I recreate/add it to the parent control again.
i can search all controls and find it prior to re adding it to the parent, but it never shows checked...
i have a checkchanged event on it that never fires, thing it's a flow/view state issue, but not sure how to reslove...
I added some code to Global.asax on app start and I had to copy same project on a different machine and suddenly Global.asax file's event didn't fire. After doing lot of googling and trying many things I deleted the existing Global.asax and added a new one and then tested it. And I was surprised that it started to work again. so I would like to know what caused that previous Global.asax not to work?
View 5 RepliesI am losing User.Identity.Name unexpectedly, resulting in "out of the blue" redirects to Login.aspx.
This seems to happen randomly, often in the first few minutes after a user login.
To track this down I setup a Trace text file and append an entry to it when any page loads. I also write an entry from Session_OnStart event and Session_OnEnd event in Global.aspx. When user logs out, I call Session.Abandon, which should fire the Session_OnEnd event, and cause a log entry. However, this is not happening. It seems that Session.Abandon is not firing Session_OnEnd, inconsistent with info inhttp://msdn.microsoft.com/en-us/library/ms178583.aspx
Session_OnStart does seem to be firing as expected.
I have a webfrom on which I have some textbox controls, validation controls and button controls. When I click the button is validating the form but when I fill the text boxes with valid data and click the button nothing is happening i.e. the page is not posting back and button_onclick event is not firing. Below is the markup.
<table>
I am loading in a user control on page load and events are never firing. The user control loads fine with the correct information. it contains two dropdowns and an
calendar control. The dropdown selection changed event is never fired. I am not sure if there is something wrong while control is being rendered.
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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.
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I am trying o implement a non-databound treeview and capture its click event when a user clicks one of its nodes. Everything I tried does not fire SelectedNodeChanged event...why?here I even tried the example sited on msdn and it does not fire...http://msdn.microsoft.com/en-us/librar/system.web.ui.webcontrols.treeview.selectednodechanged.aspxthis what I have tried to copy and implement right from the sampkle:
Sub Select_Change(ByVal sender As Object, ByVal e As EventArgs)
Message.Text = "You selected: " & LinksTreeView.SelectedNode.Text
End Su
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I have a user control that has an event that checks if a textbox is empty and does other processing...this event would also set a publ;ic property on the user control to a boolean value.
1) On the host page/parent, I want to click a button that will set off the event explained above.
2) Also, how do I reference the user control on the host page?
On my page, the user is basically registering for a site and I am trying to do a username availability check, without doing the javascript myself(not very good with it yet). The code that is shown below shows the contents for 1 out of 5 textboxes on the page. They all are in the same validator group that is triggered by a button. I have tested the availability query check itself and it works, but only once the submit button is clicked. Nothign is happening when I tab away from the textbox after enetering text.And this page is actually 3 tabs (not sure if there is some sort of a bug that involves tab containers possibly).
I here's the client-sdie code for the page (at least what pertains to this):
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And here is the server-side:
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I have a form that contains a Table control. The columns and rows are created dynamically, so there needs to be a way to maintain the state of the table. The table ALSO has textboxes within it that will fire a postback and update a database entry when the text has changed. Kind of like an excel-type configuration.
Anyways, I figured the best way to do this was to create a class object to create a standardized way of creating the Table, and then storing it in the Session. Every page reload I then readd the table to the form, so it looks like it is maintaining state.
Now, everything works fine and dandy, but my textboxes have an event handler which is stored in the class file. I can type in the textboxes and the form reposts, but the TextChanged event never fires.
Here's my code for the file:
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And here is the page that utilizes it:
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