I have a div runing on server in which i programmatically add images. On post back, id like to get some attributtes from those images, but they are nowhere to be found. What am i doing wrong?
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I have the following code in Page_Init (actually in a function called by Page_Init in response to a __doPostBack call)
System.Web.UI.WebControls.DropDownList ddlGroup = new System.Web.UI.WebControls.DropDownList();
rowString = rowNumber.ToString();
I have a div runing on server in which i programmatically add images. On post back, id like to get some attributtes from those images, but they are nowhere to be found. What am i doing wrong?
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So i add images as new control under div. But when page posts back, there is no controls in div images.
In my table I have 3 fields:
[inFrmDate] (this is the key field), [inFrmData], [totFrmData] (this accepts nulls)When I try to add [inFrmDate], [inFrmData] to the GridView I get the messageto the effect that the:
@inFrmDate scalar is not declared.
But as you can see from below it is declared:
<asp:SqlDataSource
ID="SqlDataSource1"
runat="server"
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I am programatically adding a control to an aspx page and binding a server side event to an index changed event inside the control. (It's a RadListBox from Telerik's ASP.NET controls) The problem is that on the postback triggered from the control, the event doesn't hit its eventhandler because on the postback the control isn't defined. Is there a way to handle this without having to retrace the logic taken before and rebuild the controls so the events that stem from it are processed?
View 1 RepliesI've looked all over for a solution to my problem and i haven't come across a solution that works for me, at least i can't figure out how to make them work for me.I am creating a group of rating controls and adding them to a placeholder. I want to retrieve all ratings and update my database after a button clickall worked wonderfully, i thought i was making some real progress but then i noticed i could not get the value on the server side no matter what i tried... i noticed it's overwriting the value on a postback(i am assuming) i tried adding a if not isPostback statement but then it threw a callback error. anyway here is some code:
Sub Page_Load(sender as object, e as eventArgs) Handles Me.Load
For Each DataRow As Row In DataTable
Dim r As New AjaxControltoolkit.Rating
r.MaxRating = "5"
r.CurrentValue = "0"
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I have a grid and on each row of grid i generate a radiobuttonlist with 2 items dynamically in rowdatabound. On the save button event i want to access the data of the row and save the data in DB with which ever radio button is selected.I tried different things but all in vain. I tried to use hidden field so that whenever any radio button is selected in a row then in javascript i will update the hidden field but user can select multiple rows so this is not a good solution.
Here is my code of dynamic radio button list generation in rowdatabound event.
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I mean, it's easy to add a Button programmactically to an aspx page, but a server control's event handler probably has to be set early in the page life cycle (maybe before Control.Load event). As a result in reality, are dynamic controls rarely added to apsx pages?I wish there is a way to call postback at the server, so that a event is never too late.
View 2 RepliesI am supposed to extract the data which will be pushed through a dedicated port to the given Static IP address of a system / Server. The service that pushes the data is NOT a web service. This service supports SMTP, HTTP GET, HTTP POST, UDP and TCP protocols and the data format is XML. How can this data be accessed using dotnet platform??? Please provide any pointers on the same.
View 2 Repliesim tryin to upload files to the database using the FileUpload. the upload take place. when i download the file again ( word document, excel document.. a text document (.txt), a winzip file) , it turns that the file is corrupted and cannot be opened.. an image file or an mp3 file doesnt present this problem. my application is developped usin vb.net 2010 and sql server 2005 as the database..
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I am successfully able to add new items to a drop down list using Javascript.
The script I am using is
function FillJavaScriptValues() {
I am getting started with a new web site using Web Developer Express 2008.
On the default.aspx source, I dragged a button control in between div.
<input id="Button1" type="button" value="button" /> was inserted.
But according to the tutorial, I should get asp control in the form <asp:control ....>
I have checked the top line of the page contains this line:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
I am writing an application that does it's own logging in a SQL table. On each page, I statically assign this variable: Dim page = "page_01.aspx" I've noticed that page is ALWAYS equal to the name of the Partial Class of the code-behind + the suffix ".aspx" Is there any way to programatically set the string to equal the name of the Partial Class, so I don't have to statically code it on each page? Basically, I want to assign the name of the current class to a string, and append ".aspx" to it. Can I do this, or does that get lost in the compilation?
View 1 RepliesI dymamically add checkBoxList to the page. How can I get checked items from it without adding it again?
View 7 RepliesCan a placeholder control be created dynamically such that you can add controls to it later on?
PlaceHolder ph_grid = new PlaceHolder();
I'm adding controls from code behind but I dont know how to add an event for each control
X below is from the for loop
Code behind
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What I would like to do is to access libServiceActions CommandArgument in code behind to set db tabel with the values thats passed.
I am outputting the content of a page from a subroutine. The weird thing is, the code behind is writing this to my aspx page. <asp:Hyperlink ID="HyperLink1" runat="server" CssClass="HoverMenuText">more</asp:HyperLink>
When the page is viewed live, the hyperlink is not a hyperlink because using the browser to "View Source", the html shows the exact same line! It wasn't converted to the format like "<a id="ctl00_ContentPlaceHolder1_HyperLinkHover">HoverMenuTest</a>" So for some reason, the server is not converting this asp control to an html control. Any ideas why it wouldn't do that?
I'm adding a dynamically built set of checkboxes to an asp.net page from the code behind with something like this in a recursive fashion:
pnlPageAccessList.Controls.Add(myCheckboxControl);
The controls show up fine on the page, but they don't show up when I view source, nor can I access them from the code behind.If I add the controls in the on_init method, they work. But I have some business rules driving changes to the list of controls itself that require I fire the add method elsewhere. Has anyone seen this before? I'm away from work so I can't copy the exact code.
I have two terrible ideas for how to get it working. One involves some jQuery and a set of hidden controls holding a big array of integers; the other is run the method on_init AND on my other events so the controls at least show up. Both smell like ugly hacks.
I have a asp.net list box control in which i populate items using Jquery by using some code like ..
$("#MylistBox").append("<option value='somevalue'>Someitem</option>
dynamically . but in code behind when i use MylistBox.Items is always showing Count 0 no matter how much items add.
how to set the Datapager PageSize programmatically in the code behind (vb)?
here is my datapager asp(.net) code:
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I know that if I re-add the control during Page_Load, the posted values will be repopulated when the page is rendered; however, this is not the case when re-adding the control during the Click event and I need to add the control during an event handler.
While I am using a "Telerik" control here it shouldn't be any different I guess;
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What happens is that the control is created and rendered;
When I change value in the Combo box a Post-Back happens.
HOWEVER, the event RadComboBoxSelectedIndexChanged does not fire. Also when I am back at the page the new value is not saved; Obviously, i recreate the control every time. If I don't I get a ViewState error. Seems to me that there some ViewState management problem, but I cannot identify it...
How can I get the placement of dynamically added control in any page event.
View 6 RepliesI am developing a call center application. The way it works is it read records from a database and from these it creates dynamic questions and either textbox or dropdown controls on one of about 5 tabs. The questions can change depending on the previous answers, thats why they need tgo be dynamic. The issue is the postback will loose the controls I have created. I thought about maybe just keeping a hashtable of the controls in the session and then recreating them each page create. The trouble is the page flicker. what the best way to handle this ??? I've though about update panel manipulation but nothing seems to work the way I need it to.
View 2 Replieshow to debug the wcf code. Means I have added refernce of wcf code in my web appilcation's code and called that wcf function in my web application code. Both applications are on my local machine. I have put up break point in web application and also put up break point at the function in wcf. Can break point swicth rom web application to wcf code.? Is ther any way to do this or any other way to do like this so that I can debug the function in wcf.
View 3 Replies