AJAX :: Updating A Client Label Or Textbox
Jul 1, 2010
I have a server side procedure that opens a tcp socket to a server then recieves chunks of data from the server. The server side code does this in a loop, collects the data as a string, then finally displays the data in a textbox. It all works fine.
My problem is, as the chunks of bytes are returned, I need to update a client textbox or lable showing bytes received on each iteration of the loop. I've tried injecting client side java and I've tried using such things as the updatepanel and/or updateprogress controls. I haven't gotten anything to work. It always seems to only update the client on the last iteration. i.e. in a server side procedure/loop, update a client side textbox/label. Or maybe tell me what I am doing wrong? This is some of the code I am using now without using an updatepanel or updateprogess:
[Code]....
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Jul 13, 2010
I want to display the text entered in a textbox on a label character by character. I.e, if I enter a character in textbox, I need to display that character in the label. Up to the length of the textbox, this procedure has to done for the label also.
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Sep 2, 2010
I either don't understand or I'm not using AJAX right. I'm running a long report. I'd like to have a label to show the user that the "Report Running", then, that the report has finished. But, when the user runs another report, I'd like to have the label that shows "Report Finished!" to clear so that you don't have "Report Running!" and "Report Finished!" on the screen at the same time. But, the label will not clear???? I get both lables showing. What am I doing wrong?
Here is a sample:
<asp:UpdatePanel ID="UpdatePanel2" runat="server" >
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" /> [code]...
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Dec 8, 2010
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Oct 26, 2013
I have 1dropdownlist and 1 textbox in my page
I want when I select item from DropDownList in textbox write"Correct" so I wrote below code
protected void DDLclass_SIC(object sender, EventArgs e)
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}
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Feb 11, 2011
I am working on a project where the customer has a large database of products, they want to select the product by the id number and I thought it best that the description also show up. What I have is a dropdownlist that is linked to the id number in the database table and that works just fine. My problem comes when populating the corresponding description from the table into either a textbox or label(doesn't matter which one I use) I can accomplish this without ajax just fine but we would like to reduce the postbacks to the server. I have never used ajax before Here is my code from the aspx file.
[Code]....
Here is the code in the cs file
[Code]....
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Jul 14, 2010
Anyone have this problem. When you write a ex. label name or label text in the properties window, it look like its updating the text before you actually are finish. This make you type over what you allready wrote. Its not a big problem,
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Sep 6, 2010
I want to show value in label on textbox change event , means when user enter text in text box then this value should display in label . I am using this:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:TextBox ID="TextBox5" runat="server" ontextchanged="TextBox5_TextChanged" AutoPostBack="true"></asp:TextBox>
</ContentTemplate>
</asp:UpdatePanel>
protected void TextBox5_TextChanged(object sender, EventArgs e)
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Jul 26, 2010
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Oct 1, 2010
I used PopupControl Extender to display row details from a gridview, and need to update the two textboxes, but the changed value in the textboxes did not get picked up when click the update button on the popup window, so I need to get client side javascript to read the new changed value from these text boxes. However, I tried a few way, none worked for me, not sure what is wrong.
1. Add a javascript function in the .aspx file and use onclientclick of the linkbutton control to call the function, I got error of "Microsoft JScript runtime error: Object required".
<script language="javascript" type="text/javascript">
function newTextValue(textbox)
{
var text = document.getElementById("TextBox1").Value;
alert(text);
}
</script)
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("GalleryTemplateName") %>' Height="20px" Width="230px"
style="text-align: left"></asp:TextBox>
<asp:LinkButton ID="LinkButton2" runat="server" Font-Bold="True" CommandArgument='<%# Eval("GalleryTemplateId") %>'
oncommand="LinkButton2_Click" OnClientClick="newTextValue(this)" >Update</asp:LinkButton>
2. Use ScriptManager.RegisterClientScriptBlock in the aspx.cs file, :
ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "changevalue", "alert(document.getElementById('TextBox1').value);", true);
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Mar 3, 2011
I get some data from the database that I want to use to update another Database row.I know how to do that if I put the first value on a label and then use that.//First I get the Name I want
DataTable table = GetName();
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NameList.DataBind();
[code]...
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Jun 14, 2010
I'm using a third party control which fires a server side method when a document gets saved. Should there be any problems with saving, I'd like to display a message on the client side, such as:
[Code]....
Doing that in server side doesn't work after discovering IsCallBack = true.
How do you update lblMessage via CallBack without a full PostBack?
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May 29, 2010
I'm using VWD2010 express. using C# code behind.
What I need to do is update a label during a loop (simplified from my implimentation). If I can refresh the whole page or an update panel that would work too. I want to give the user more info than just "Please Wait...". So the extreamly simplified version of what I'm trying to do is:
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<br />
<asp:Button ID="Button1" runat="server" onclick="Button1_Click Text="Button" />
protected void Button1_Click(Object sender, EventArgs e)
{
for(int i =0; i<=10; i++)
{
Label1.Text = i.ToString();
}
}
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Feb 27, 2011
I have a DB in which looks like this:
Game
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LoosingID (FK)
Score
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Oct 26, 2010
I'm trying to make a order form where once the user selects an item from the drop down list, the label will automatically be populated with the user's selection.suppose user select item from drop down then label populate rate for that itemve me a sample example..
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Apr 21, 2010
I have a label , which has 1000 as default value .
And i have a textbox where user will input the value ...
I want to sum the total value of label and textbox and show in the same textbox .
Here am using one textbox ...
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Oct 8, 2010
I am trying to update client side controls asynchronously with information from a service.
The service I am using has a callback delegate that points to the users web page (server side)
I would like to update information on the page that is initiated by another users also consuming the same service. exactly like a chatroom.
I am trying to use an update panel, and call updatepanel.update() (server side) once I recieve the information from the service. basically: how do I partially update control data from the server side so that client side can see it.
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Aug 9, 2010
cookies are generated from the client scripting.e.g. document.cookie = city=NYC;
I want to update this from GUI using
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Sep 8, 2010
So there is a ASP checkboxlist that gets rendered to the table and in the code behind the checkboxes get bound with a label from a code table. I need to display a text box only if a certain checkbox is checked off.
<table id="chkSomeCheckbox">
<tbody>
<tr>
<td>[code]....
The checkboxlist renders a table which the element retains the ID. I have tried to just get the value of the label when a checkbox is checked and then go from there to create my logic - but I can't seem to be able to grab the value of the label. I have tried the following different ways:
$("#<%chkSomeCheckbox.ClientID> input").next("label").val();
or
$("#<%chkSomeCheckbox.ClientID> input").next().val();
I am using the input selector because when I get this first part working, I will need to do some logic on it.
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Feb 2, 2011
I have a webform that has a lot of controls and a submit button. When a user submits clean data, there is an asp.net label control that displays a "form submitted successfully" message. My problem is that after this successful submission, if the same user enters some invalid value for some fields on the same form and clicks on the submit button, the page still displays the success message along with the asp.net error message for that field (By using the asp.net validation control). My question is how do I get rid of the success message in this scenario? (In this case all I want to display is the client side validation error message). I am not that familiar with javascript.
<asp:Button ID="btnAddActivity" Text="Add Activity" runat="server" onclick="btnAddActivity_Click" ValidationGroup="vgSetup" OnClientClick=" return changeLabel();"/>
<asp:Label ID="lblMessage" visible="false" ForeColor="red" runat="server"></asp:Label>
function changeLabel()
{
document.getElementById('<%= lblMessage.ClientID %>').innerHTML = "";
return;
}
Here is the markup for the label and button .I tried calling a javascript function on the OnClick event .This disables the success message, but the validation error messages are displayed after a post back.I want to display the validation error messages without a post back.
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Jun 18, 2010
Say If got these dates in a TextBox 2010/06/19,2010/06/20,2010/06/21,2010/06/22,2010/06/23, i want automicly my Start label to pickpup the lowest date and Label End to pickup the highest Date Start: [2010/06/19] End: [2010/06/23] between brackets is my label
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Mar 8, 2010
I've been trying to resolve this issue for like 10 hours but with no luck. I am trying to load data from a db to text boxes and allow the user to enter his/her modifications and click a button to update the db with the entered value in the textboxes. The problem is the entered data are not sent to the db but the data that are loaded when the page is loaded is what it goes to the db. I also tried vb codes and javascript to change the data of the textbox but that did not work.
here is my code:
[Code]...
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Apr 5, 2010
I am trying to update the table records by intering a new values in a textbox
and am facing problems in the code of dataset
how could I perform that
[code]....
You should post any code that you are having problems with in the thread (because apparently some people can't open the files attached).
Anyways, you need a TextBox on the page. Then you need to access the Text in the TextBox (using the TextBox.Text property). Once you've got that you should use it to update your database.
The best way to supply this value (that has been provided by the end user) is to use the SqlCommand.Parameters property (if you're using the SqlCommand object).
This topic is covered nicely in:
How to use database in your program Part 1
How to use database in your program Part 2
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Oct 14, 2010
I'm using following DropDownList event to select an employee from MS SQL Server 2005 and showing the employee's information on TextBox.
protected void employeeDropDownList_SelectedIndexChanged(object sender,
EventArgs e)
{
EmployeeDAL employeeDAL = new EmployeeDAL();
DataTable dataTable = employeeDAL.GetEmployeeData();
for (int i = 1; i <= dataTable.Rows.Count; i++)......
But the problem is... values of the TextBoxes are not changing. I mean TextBoxes are keeping previous values those were assigned in employeeDropDownList_SelectedIndexChanged event. But why?
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Feb 25, 2011
I have a ModalPopup panel which can be brought up from various different textboxes on my WebForm. In JavaScript when I being up the ModalPopup I set a label.InnerHtml value. That displays the label properly on the screen, but then when I try to read the label's text property in the codebhind, it is the initial value it was. How can I get such a value to be propgated over to the server?
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