I have added a combobox to my page. Listview is updated based on selection from combobox. It is working great except it does not fire when Enter is pressed. User has to click on option from dropdown or has to press tab key to have Listview to populate. I want the user to be able type use arrow key to select option and then press the enter key for event to fire.
Using .net 3.5 and c#
The Problem:The user entered value is missing in the .Text attribute of the AjaxControlToolkit ComboBox when the enter key pressed. Also the "on change" events events are not called but I am not using postbacks anyway so I do not care.
Example: private void BuildFileListDetails(NHibernateDataProvider _providerM)
{
int resultsPage = Convert.ToInt32(ddlNavPageNumber.Text);[code].....
My Solution:I needed to access the AjaxToolkit "ComboBox" imbedded TextBox control's .Text to access the value entered by user.
private void BuildFileListDetails(NHibernateDataProvider _providerM)
{
int resultsPage = Convert.ToInt32(ddlNavPageNumber.Text);[code]......
I have a problem with CascadingDropDown... I have two related comboboxes, where the second is a slave of the first (e.g. country the first, cities the second). What I want is that if I select one country from combobox 1 then the second must be "filtered" by that selection (it should display all the cities inside the selected country, and the actual CascadingDropDown implementation is OK), but if I leave the combobox 1 in the default option (e.g. "Please select a country") I want the second to display all the cities I have in the database. The problem is that when selecting default option for combobox 1 the second combobox is disabled and a postback to my webservice never occurs.
View 3 RepliesI want search the data in combobox . I am using AutoCompleteMode="SuggestAppend" and DropDownStyle="Simple"
But I can't type any text in combo box
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
[Code] .....
How can I make a validation if user dont select data from the combobox after selecting a button then error will be on label.text?
View 6 RepliesI specified DropDownStyle = "DropDownList", so that users are not allowed to enter text that does not correspond to an item in the list.but my problem is that I can not typed text in the combobox even if I type the text that corresponds to an element of the list of combobox!!
<asp:ComboBox ID="Cmb_unitte_filtre" runat="server"
AutoCompleteMode="SuggestAppend"
DropDownStyle="DropDownList" MaxLength="0" AutoPostBack="False" ></asp:ComboBox>
[Code]....
View 8 RepliesI 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]....
I'm trying to implement live binding, purely imperatively . In my example , I have a master view , which is populated using json array. In the detail view ,I'm just setting the value of a prepopulated combo box . But , the moment the bind statement is executed, the combobox (select element) becomes null. This works perfectly when done declaratively. Below is the code for imperative binding. This function is triggered when an item in the masterview is selected.
function execCommand(sender, args) {
// Create dataview for details section
var detailsView = $create(Sys.UI.DataView, null, null, null, $get("div2"));
$get("div2").className = "sys-template";
// bind the dataview to the selected data from the master
var b = Sys.bind(detailsView, "data", sender, "selectedData");
// after the above line of code is executed, the select element with id "myselect" becomes null.
//alert($get("myselect"));
// bind the value attribute of the combo box to the "Description" property of the binded data
var x = Sys.bind($get("myselect"), "sys:value", detailsView.get_data(), "Description");
//hence when the above line of code is executed , nothing happens :( ,i.e the value of the combo box doesn't get set
// alert($get("myselect"));
}
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SysObserverSampe.aspx.cs" Inherits="SysObserverSampe" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">>....................................
I have (or so I think!) a simple problem.
I will greatly simplify my model to speed this along.
I have a model class lets call it item:
public class Item
{
[Required(ErrorMessage="Must indicate if product is to be tracked by serial number.")]
public bool TrackedBySerial { get; set; }
}
I have an "Add" view where I create a DropDownList like so:
<%= Html.DropDownListFor(model=>model.TrackedBySerial, new SelectList(new List<object> {null,true,false},null),"Select One") %>
<%= Html.ValidationMessageFor(model => model.TrackedBySerial) %>
My problem is that unless I create my boolean value in the model to be a nullable type, I can't force the blank default value.
If I use the Html.DropDownList() instead of DropDownListFor() , is there any way for me to use ModelState.IsValid -- or do I need to mix my own custom validation in my controller as well?
Update: So I got the functionality I was looking for, its just a bit more verbose than I'd have liked. Is there a better way to do this?
Controller:
[HttpPost]
public ActionResult Add(InventoryItem newItem)
{
try
{
//get the selected form value
string formVal = Request.Form["TrackBySerial"];
//convert to true, false, or null
bool? selectedValue = TryParseNullable.TryParseNullableBool(formVal);
//if there is no value, add an error
if (!selectedValue.HasValue).....
view:
<div class="editor-field">
<%=Html.DropDownList("TrackBySerial","- Select One- ") %>
<%=Html.ValidationMessage("TrackBySerial") %>
<%= Html.ValidationMessageFor(model => model.TrackedBySerial) %>
</div>
What is the most reliable way to get the current user input from a ComboBox? I've noticed that SelectedItem.Text, SelectedValue, and Text all contain the wrong result when the user deletes everything in the box and then immediately does something to cause a postback without clicking outside the box first (e.g. the user presses Backspace to delete the current contents and then presses a Submit button without clicking on anything else in the form first).
View 1 RepliesIt’s good Filter and Search ASP.Net DropDownList items using JavaScript.Here used two components textbox and dropdownlist. I want use search only in dropdownlist whithout textbox.
View 1 RepliesHaving an issue with the combobox overwriting the user input if there is a partial match.
[Code]....
If there is a record such as "NETEX" and the user types in "New Item", an item not in the data source, then the value is "NEw Item". If the user goes back to change the "E" to "e", it replaces the entire line with "NETEX".
Using CaseSensitive="true" is not an option as the user would have to capiltalize the beginning of every input to get hits, allowing for case-sensitive duplicates.
Have tried DropDownStyle="Simple" and all flavors of AutoCompleteMode to no success.
I have the following items bound to my combobox:
Value: 1, Text: SNS
Value: 2, Text: ING
Value: 3, Text: ING
Choosing value 1 results in a SelectedValue of 1
Choosing value 2 results in a SelectedValue of 2
Choosing value 3 results in a SelectedValue of 2
does the combobox has as a disadvantage that the Text has to be unique?
I'm try to add a combobox to my form which i have done and populate it with the infomation i need but i want to stop the user from being able to edit the first 5 character in the textbox part of the combo box( 1 is this possible 2 am i going about it in the right way).
I have 3 columns fro a db to enter ips ie 123.456.7.89 at the start if each number i want (SE1)(SE2)(SE3) which i can do at the momment . So I get in the combobox list 3 items with (SE1)123.456.7.89 OR just (SE1) depending of i a result is returned from the DB. However i don't want the user to be able to edit out the (SE?) part of the sting in the textbox. When editing i've tried used the text change event to try and capture the change and make sure the string.length > 5 , but the event does not fire also when i leave the combobox it it adds to the combox list. If I refersh it goes back to how it should be with only the 3 items.
in aspx i written as follows
<ajaxToolkit:ComboBox ID="cmbAddressAlias" runat="server" DropDownStyle="Simple" AutoCompleteMode="Suggest" CaseSensitive="false" AutoPostBack="true" RenderMode="Inline" Width="170px" CssClass="cmbProvince" OnSelectedIndexChanged="cmbAddressAlias_SelectedIndexChanged"> </ajaxToolkit:ComboBox>
it binding correctly(datasource dynamically binded) and it raises event too while changing index but it is not raising event when we manually clearing the combobox text..if currently combobox having text "ASP" then i manually select that entire text and using del key i am deleting but it is not raising event for me.. when i change index it automatically raising event...i need to raise event while combobox is empty...
I have a MaskedEditExtender set for a TextBox that will receive a fee amount. I want the user to be able to type the "." decimal when the amount contains a decimal value (123.45). But if the amount has not decimals (123) I want the mask to automatically fill the 2 decimal with zeroes and also enter the "." decimal point (123.00).With the following mask I'm able to enter a full number (999) and get the zeroes but when user enters 85.85 it will be 850.85 so I change the direction RightToLeft but I'm not even able to type the first character.
<cc1:MaskedEditExtender ID="txtFee1ME" runat="server" PromptCharacter=" " Mask="999.99"
have code in my .Net web app which sets the Form DefaultButton (fires the Search button when enter key is hit). This works fine in IE and Chrome but not in Firefox. I discovered that the web form has the <ajx:HoverMenuExtender which deletes a note when clicked. The problem is this note delete fires when the user hits the keyboard enter key!
View 5 RepliesHow can I validate a Boundfield in gridview that changes to textbox dynamically?the boundfield is
Â
<asp:BoundField DataField="quantity" HeaderText="quantity" />
and it chenges to textbox in code belowI want only number (1,2,3,...) in it not text.
protected void CartGrid_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
[Code]....
I have two Comboboxes where the second one is dependent upon the first one.
When the SelectedIndexChanged event of the first Combobox fires then the second Combobox will be enabled.
After the event, the second Combobox is enabled but I cannot select the ComboBox item.
EDIT
I use Dev express Tools
First Combo I load in Page_Load Event
I use Server Side code:
protected void ASPxComboModule_SelectedIndexChanged(object sender, EventArgs e)
{
LoadSecondCombo();
LoadSecondCombo.Focus();
}
There is no problem in loading, but I'm unable to select 2nd combo item.
With javascript, how do I check for a user clicking the back arrow in a browzer?
View 5 RepliesI want to get the select value from a combobox that is bound to a dataset.For binding the combobox I use:
cboEmployees.DataSource = ds.Tables["employees"];
cboEmployees.ValueMember = "employee_number";
cboEmployees.DisplayMember = "employee_name";
string SelectedValue = cboEmployees.SelectedValue.ToString();
I have a table to store customers information.
<asp:ComboBox ID="cboCustomers" runat="server"
DataSourceID="sdsCustomers"
DataValueField="CustomerID"
DataTextField="CustomerName">
</asp:ComboBox>
<asp:Button ID="btnAdd" runat="server" Text="Add Combobox" OnClick="btnAdd_Click"/>
What i'm trying to do is, add a new combobox to select another customer and repeat this as necessary, 2, 3 or more.
it is possible to select an option in selectbox by value?In c# there is a way to select it by index. But I realy want do it by value?
View 4 RepliesI created my testing project by just adding a class library and referencing nunit dll. Works fine.However, I'm curious as to how get NUnit integrating with VS2010 just like MS Unit.Also any good reading on TDD with MVC 2 (like specific to the new functionality available in MVC 2)?
View 2 Replies