C# - How To Update Panel With CheckBox - Not Working Properly
Apr 15, 2010
I'm working on a simple demo project so that I can learn some things about ASP.NET's AJAX capabilities. My problem is that I can't seem to get an UpdatePanel to work properly with a CheckBox inside of it. Here is the markup I'm using in my .aspx file:
I'm new to the world of Update Panels and i'm having a hard time figuring out how to use them properly.
I have a form that has a table(TABLE1)...and inside TABLE1 i am linking to a sql data source....at the bottom of the table i have a 'Add' button.
When the user clicks the add button...a modal popup appears (POPUP1) and inside the POPUP1 the user can click a link that can add a user...when the link button is clicked...a panel within POPUP1 is set to visible = true.
I have one update panel around the whole table and the add button...when i click add and then click the link to add a user....the modal popup disappears.
I have a simple Textbox for entering password and the checkbox named Show passowrd beside it. Textbox mode is Password by default. These controls are in the table and I am using Update panel on top of the table. My application framework is 2.0 and I am Using ASP.NET 2.0 AJAX Extensions.
Now When i write some text in the textbox and check the Showpassword chekbox then the checkbox event is not getting fired. when Second time i click it then the event is fired and text in the textbox is removed and the textbox mode is set to the SingleLine. This functionality I am achieving by writing a code in the CS File.
When I remove the Update panel then the event is fired correctly everytime, but when usign Update panel and some text in the textbox then i have to check the checkbox twice for the desired functionality.
I have one button on my page. On click of this I need to run four methods parallely in four saperate thead and need to show the progress bar for each method. Also need to update the label controls form those threaded methods.
Also I need to user Update panel of AJAX control tool kit to avoid post back to user.
I have used the read pool for that. When I remove the update panel the code works fine and update four labels but when I put the update panel it is not updating the labels.
The reason I have the update panel outside the Tabcontainer is so that when switching between tabs, the screen doesn't flicker with refreshes, etc. But as a result, I can't get the FileUpload working properly. The FileUpload1.Filename is blank, so it errors out.
Is there anyway to get this working properly? I've tried the latest AsyncFileupload within the control toolkit, but this caused all kinds of problems with my pages so that's out of the question. I tried an iFrame too, but this also didnt work properly.
I want to display Chinese character in text box in Ajax Update Panel. But now i am getting error message as below.
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; OfficeLiveConnector.1.3; OfficeLivePatch.0.0)
Timestamp: Sat, 5 Jun 2010 13:12:18 UTC
Message: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
I developed my application form in aspx page its such a huge form(6000 lines), I used update progress there for that updatepanel, But i cant able to see the update progress icon when i rendering the page.
I am experiencing problems with the Ajax Update Progress control.
My application is about writing some comments and uploading a picture and when the picture is the process of being uploaded I would like to show an update progress. This is my code:
- when the button is clicked I see the update progress message for a couple of seconds but the picture and the text are not uploaded- I need to click the button again in order to see my picture and text uploaded but in this instance I don't see the update progress message.
I have the below code in my project..however its giving me an error on the update(bolded line)..please help me on this..
Private Sub ChangePassword1_ChangedPassword(ByVal sender As Object, ByVal e As System.EventArgs) Handles ChangePassword1.ChangedPassword lblTempPassword.Text = ChangePassword1.NewPassword.ToString CustomerName.Text = CType(Session("UserName"), String) Dim FV1Updobjconn As Data.SqlClient.SqlConnection FV1Updobjconn = New Data.SqlClient.SqlConnection() FV1Updobjconn.ConnectionString = ConfigurationManager.ConnectionStrings("ASPNETDBconnectionString1").ConnectionString FV1Updobjconn.Open() Dim dtUpdating As New Data.DataTable() Dim sqlUpdating As String = "UPDATE [SuperAdmin] SET [TempPasswd]= @SU2TempPasswd, [TempPwd]=@CU2TempPwd WHERE ([CustomerName] = [@CU2CustomerName])" Dim cmdUpdating As New Data.SqlClient.SqlCommand(sqlUpdating, FV1Updobjconn) cmdUpdating.Parameters.AddWithValue("@SU2UserId", UserIDValue.Text) cmdUpdating.Parameters.AddWithValue("@SU2TempPasswd", lblTempPassword.Text) cmdUpdating.Parameters.AddWithValue("@CU2TempPwd", False) cmdUpdating.ExecuteNonQuery().... I get an error here saying..INVALID COLUMN "CU2CustomerName" ' Dim adUpdating As New Data.SqlClient.SqlDataAdapter(cmdUpdating) ' adUpdating.Fill(dtUpdating) ' Get the values needed to be passed on ' CtSUCompanyName.Text = dtUpdating.Rows(0)("CompanyName").ToString() ' CtSUCatPurch.Text = dtUpdating.Rows(0)("CategoriesPurchases").ToString() FV1Updobjconn.Close() End Sub
I have a check box, RequiredFieldValidator and textbox that have editmask extender I want to change the control properties programmatically when I check the check box but the problem that nothing happened when I check it.
I made the control post back and I added triggers.
when put break point and go with code step by step will go through the code but nothing change.
I'm writing an app in which user can register. While registering the one may choose several options and according to these regiester fields are visible or not and are required or not. I came up with an idea that all fields will be in in the updatePanel and when users changes registration options I would set visibility of these fields on the server side.
It works but incredibly slow and whats more on the FF I have the given error:
The state information is invalid for this page and might be corrupted
3 checkboxes with other fields are in the updatePanel
Each field is in dl tag with runat="server>
Am I doing something wrong ? Why does it take so long (~4 min on localhost) and in firefox it doesnt really work (when I use debug I think that process completes without errors on ff, I dont understand that at all :)
Oh and I'm using ASP.Net and cant upgrade on this project.
provide the solution to the problem. must achieve the ajax type functionality for the controls of the page displayed within the iframe, the contents(button) withing the iframe are causing complete post back i have used update panel, script manger, on the main page and also on the pae displayed in the iframe even then post back occurs note i check this using the current time of day in the label. here are the codes.
This code works fine if i use this inside ssercontrol > panel and i have a checkboxes in table when no checkbox is checked its works fine .... but if i disabled and checked any of the textbox then this doesn't work .... in usercontrol why ? i didnt understand ..
return true; } } alert("OOps! You haven't selected all available checkboxes"); return false; } </script>
I am working on an application where i have got, a content page within a Master Page. I have placed a gridview on the page. This gridview has three fields, one of them is TemplateFied, a BoundFiled and a CommandField, along with paging enabled in the gridview.
I wanted to place this gridview in Update panel so that it doesnot re-loads when command is clicked or page is changed.