Web Forms :: Dynamically Populated DropdownList Value Not Seen When Button Pressed?

Sep 27, 2010

Sample Code.
<asp:DropDownList ID="MediaTypeDDL" Width="306px" ToolTip="Select Media Type" runat="server"></asp:DropDownList>
<asp:DropDownList ID="MediaFormatDDL" Width="306px" ToolTip="Select Media Format" runat="server"> </asp:DropDownList
<asp:Button
ID="btnUpload"
runat="server"
OnClick="btnUpload_Click"
Text="Upload"
/><br
/>
protected void btnUpload_Click(object sender, EventArgs e)
{
String strMediaFormat = MediaFormatDDL.SelectedItem.ToString(); // Not seeing value here!
}

Item Selected in MediaTypeDDL determines values in MediaFormatDDL. I'm using Javascript to populate MediaFormatDDL. This is working. I now select the item I want from MediaFormatDDL. That works The problem I'm seeing occurs when I press the button to save the values from
the screen. I don't see the Item I selected from MediaTypeDDL. All the other fields are okay. This must be someThing simple, but I'm not seeing it.

View 3 Replies


Similar Messages:

Web Forms :: Dynamically Populated DropDownList Not Working

Jun 3, 2010

I have two drop down lists on my page. One (DropDownList A) has the values preset by me. The other (DropDownList B) has its values filled by a database query if a button is pressed. Each of them have AutoPostBack set to true. Each of them have corresponding onselectedindexchanged functions. DropDownList A works fine. When I change it, I want it to turn itself invisible. It does. DropwDownList B is not working. When I select something, it does the postback but the selected item is reset and the onselectedindexchanged function is never called. I feel like this is a problem I've solved in the past, but it's been 3 years since I programmed ASP.NET. All this is done in C# by the way.

View 12 Replies

Web Forms :: Dynamically Populated Dropdownlist And Postbacks

May 26, 2010

i am currently working on a webform that has several dynamically populated dropdown lists. this works just fine, however, i have other web controls that require to have a postback..and at the time the page postsback, it reloads my dropdownlists, reseting whatever option i had chosen...

what can i do to resolve this?

View 2 Replies

Forms Data Controls :: Dynamically Populated Dropdownlist Inside Gridview

Mar 28, 2011

I have a gridview which contains a templatefield. Inside this is an ImageButton and a dropdownlist. This is all created in the aspx page, although the ddl list items are populated in the RowDataBound event in the vb page. When i change the selected item in the drop down list and hit the imagebutton, the selected item is not maintained after postback. Instead the first record is displayed in the dropdownlist. I have wrapped an If Not Page.IsPostback around the datasource and databind's but this doesn't help. I have tried enabling viewstate in all areas on the page too, but still nothing. The list items for the ddl must be created on RowDataBound also. As far as I am aware, my ddl is not really dynamic, its just the list items which I add in the code behind which are classed as dynamic.

View 11 Replies

ASP.NET Validation Issue - DropDownList Being Populated Dynamically On Client?

Apr 28, 2010

I'm populating a DropDownList using JS on the client and validating with a RequiredFieldValidator.This works fine on the client but the Page.IsValid consistently comes back false on the server.Is this because the selected value wasn't in the DropDownList when it was first served to the page?What's the easiest way around this? (I need to leave server validation turned on)

View 1 Replies

Web Forms :: Reset Form - Dynamically Populated Checkboxes From Database And 8 Radio Button Groups

Jan 11, 2010

asp.net using visual studio 2008 3.5 framework with sqlserver 2008. I have a webform (derived from master page) so its a content form with content placeholder. It has two text boxes, dynamically populated checkboxes from database and 8 radio button groups. It has two custom validators attached with two of my fields also. I've tried every way to clear my form but its not working somehow. I've tried Control iteration method. Ive tried btnReset.Attributes.Add("onClick","document.forms[0].reset();return false;"); thingy...but none is working.

View 4 Replies

Data Controls :: Retrieve Selected Value Of DropDownList In GridView When Dynamically Populated From Database

Oct 16, 2012

How to retrieve selected value of dropdownlist  in gridview when dropdown is added dynamically from database.

View 1 Replies

Web Forms :: 2.0 - Set Focus To A TextBox While Button Click Event Is Fired Using Default Button When Enter Key Is Pressed

Mar 25, 2010

How can I set Focus to a TextBox while Button click event is fired using Default Button when enter key is pressed. Here is my Page and code.

<%@ Page Title="" Language="C#" MasterPageFile="~/mpChat.master" AutoEventWireup="true" CodeFile="FocusTest.aspx.cs" Inherits="FocusTest" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Panel ID="Panel1" runat="server" DefaultButton="Button1">
<asp:TextBox ID="TextBox1" runat="server">
</asp:TextBox>
<asp:Button ID="Button1"
runat="server" Text="Button" onclick="Button1_Click" />
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
using System;
public partial class FocusTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
TextBox1.Focus();
}
protected void Button1_Click(object sender, EventArgs e)
{
TextBox1.Text = "";
TextBox1.Focus();
}
}

View 1 Replies

Forms Data Controls :: Add Dynamically TextBox And DropDownList In Gridview On Button Click

Oct 8, 2010

I have Gridview and Button Control on Form.i want to Add Dynamically TextBox And DropDownList In Gridview on Button Click Wich is placed outside of Gridview.

When i click on Button -> One TextBox and One Dropdownlist which contains values bydefault 1,2,3 should bind to gridview. Button is placed outside Gridview.

View 6 Replies

Web Forms :: Check Validation When Save Button Pressed?

Oct 1, 2010

I am CustomValidator to vlidate some data.There are 3 static buttons and some dynamically creating buttons in that page. I just need to check validation when I press the save button.For all other button click I do not want to call the validation. How do I tell that in the Validation function?

<asp:CustomValidator ID="CustomValidator1" runat="server"
ErrorMessage="CustomValidator" ControlToValidate="DropDownList1"
ClientValidationFunction="MyCustomValidation" ></asp:CustomValidator>
function MyCustomValidation(objSource, objArgs)
{
/Proceed if the control pressed is cmdSave button.
var Specialty = document.getElementById("DropDownList1").options[document.getElementById("DropDownList1").selectedIndex].text;
if (Specialty == "Select an option")
{
objArgs.IsValid = false;
}
else
{
objArgs.IsValid = true;
}
}

View 2 Replies

Web Forms :: Make 20 Min Countdown After User Pressed Button?

Feb 21, 2010

First of all, I'm sorry if I don't describe my problem so well, English is not my first language. I'm working on a project where after the user has pressed a button, the button goes invisible and a label control should say "In 20 mintes you may press the button again". The problem is that if the user presses the button before the current hour is almost over, then he will be able to press the button again. The way I compare the time is by placing th current time, which the user presses the button in a sqldatabase table row for that user. This is my code for the moment for showing the user how long he has to wait:

DateTime TimeSincePressedbutton = Convert.ToDateTime(user.timeSincePressedButton); //value from database
TimeSincePressedbutton.AddMinutes(20.00);
TimeSpan d = DateTime.Now.Subtract(TimeSincePressedbutton);
int dd = Convert.ToInt32(d.Minutes);
int timeLeft = 20 - dd;
ValPointsTitle.Text = "In " + timeLeft.ToString() + " minutes you may press the button again";

and the code I have for comparing time with the time now, is to see if the user may press the button again (which I know is wrong, just cant figure out how to fix it, the reason I compare hour, day, month, year etc is because if the user doesnt show up online the same day, maybe he comes back after a couple of days, or next month, or next year).

if (timeLeft <= 0 && DateTime.Now.Hour == TimeSincePressedbutton.Hour || DateTime.Now.Hour > TimeSincePressedbutton.Hour || DateTime.Now.Day > TimeSincePressedbutton.Day || DateTime.Now.Month > TimeSincePressedbutton.Month || DateTime.Now.Year > TimeSincePressedbutton.Year)
{
//button becomes visible and the user may press it again
}

View 1 Replies

Web Forms :: Html Button To Be Triggered ENTER Key Is Pressed ?

Jan 24, 2011

I have an html button that makes a certain action and i have two "asp:textbox"I want the html button to be triggered when the ENTER key is pressed on keyboard.

[code]...

View 3 Replies

Web Forms :: How To Get SelectedItem.Value From Dynamically Populated RadioButtonList(s)

Apr 12, 2010

Here is my attempt:

[Code]....

View 9 Replies

Web Forms :: Prevent Refresh Of Page When F5 Button Is Pressed In Browser

May 17, 2012

Do Not refresh the page if i press the f5 button in asp.net.

View 1 Replies

Web Forms :: Getting A Dropdownlist Populated When Binding To Datatable

Aug 10, 2010

I have 2 dropdown lists on a WebForm. One of them is populated in the page's Page_Load event. This oneworks fine with the following code.

[Code]....

Then, after a value is selected from this list and a date is selected from a DateTime picker, then I click a button which is supposed to populate the 2nd dropdownlist. In the debugger in the button's click event I can see that the dataset is being populated with data, but then the list is never populated after the DataBind() method is run. Here is code from the button's click event.

[Code]....

View 2 Replies

Web Forms :: DropDownList Populated With SQL Stored Procedure

Mar 23, 2010

I have a DropDownList populated with a SQL Stored Procedure. On the page, there is also a button that when pressed, processes the contents of the dropdownlist. I would then like the dropdownlist to automatically remove the selection, and if there is nothing left in the dropdownlist, I would also like the button to be disabled.

View 5 Replies

Forms Data Controls :: DropDownList Not Being Populated

Jul 18, 2010

DropDownList Not Being Populated

[Code]....

View 4 Replies

Web Forms :: Drop Down List Is Dynamically Populated At Runtime?

Jul 5, 2010

I've got a dynamically populated drop down list and was wondering if web crawlers are able to see dynamically rendered data? Here is my static html below, and the end result to the end user is a drop down list that's populated from my SQL query within my datasource below.

View 1 Replies

Forms Data Controls :: Dynamically Populated Radiobuttonlist

Oct 17, 2010

Dynamically populated Radiobuttonlist?

View 1 Replies

Web Forms :: Stop Page From Resubmitting Form When Back Button Pressed?

Apr 26, 2010

I have a page, the user types in e-mail and then submits. The next page is a confirmed page - letting the user know that his -mail was entered. If you then click back, the forum will try to re-submit itself. Is there a way to stop this?

View 6 Replies

Web Forms :: How To Prevent Alert Message Box When Browser Back Button Is Pressed

Jun 5, 2013

I am running one application where one gridview is there when i am deleting any data there it shows one message for deleting.

for message i used this code:

ClientScript.RegisterStartupScript(this.GetType(), "ShowMessage", string.Format("<script type='text/javascript'>alert('{0}')</script>", "this row is deleted"));

after that i am going to some other page ,after going other page when i click on back button in browser it is coming in the previous page but the message which poped up before again getting popup.

View 1 Replies

Web Forms :: Dropdownlist Doesn't Work If It's Populated With Only One Record?

Jun 29, 2010

I have a dynamic dropdown that is populated from sql. The user is supposed to select an option from the dropdown, then click a search button on the form to return some results based on that selection. It works fine if the dropdown gets populated with more than one record. However, if only one record is returned, that one record can't be selected. Whether you select it or just leave it alone since it's the only one, when you click the form button (search button), no results are returned b/c the dropdown selection must not be actually selected.

I've included the relevant code below. First the DDL, then the datasource, and finally the C# code in the if (!Page.IsPostBack)

[Code]....

View 14 Replies

Web Forms :: CheckBoxList Dynamically Populated How To Retrieve Values During Postback

Apr 30, 2010

I have a form with 2 sections. The first one contains some radio buttons. The second one contains a checkboxlist. When we change the selected radio button then it modifies the elements in the checkboxlist. For this I setted the radio buttons with autopostback, and in the code behind (in OnLoad) I populate the CheckBoxList depending on the selected radio button.

This work fine.

The problem is that I also have a button at the end of my form which post the data of my form in another page (with PostBackUrl). Then in that page I would like to retrieve the values of the checked checkbox. But I can't find how to do that. In the Request.Form I don't see anything.

I searched on the web but I didn't found really a solution.

View 3 Replies

How To Send The Dropdownlist Value To The Controllers Action When Link Is Pressed

Jan 12, 2011

I am using asp.net mvc 3 and I want to trigger the GridView action and pass the dropdownlist selected value in the action parameter.

@Html.ActionLink("View", "GridAction", new { action = $("#DropDownList1").val() });

View 1 Replies

Forms Data Controls :: How To Find A Label In The Same Row Of A Gridview As The Button Command Pressed

Mar 23, 2010

I have a gridview that is populated from a database. Each row has a number of button commands. If I press the button command in row 3, I would like to grab the label information from that same row..aspx gridview (I want to access lblTheId.Text when command:editthisid is selected) - for the same row...:

[Code]....

View 3 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved