I have a combobox within an edititem within a datalist:
<asp:DataList
runat="server"
DataKeyField="ChargeID"
ID="HistoryList"
DataSourceID="SqlDataSource1"
OnUpdateCommand="DataList1_UpdateCommand"
<EditItemTemplate>
<tr>
<td
width="70"
align="left">
[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 a problem with the Ajax ComboBox from the Ajax Control ToolKit. When I want to erase the text in the ComboBox, I got this error:
"Microsoft JScript runtime error: '_optionListItems[...].text' is null or not an object". I only get this error when deleting the content of the Combox is the first action I do on the ComboBox. If I overwrite the text by entering something else before deleting this text, I got no error.
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.
i am using the following in a stored procedure.
[code]....
[Code]....Handling NULL...Field not updating when NULL?
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...
Using Combobox in my webpage, in a combobox i want to display a null values first, then it should display all values..
Combobox.item = null values
combobox.item = 1
Combobox.item = 2
cmd = new OdbcCommand("Select vehicleno as vehicleno from tb_car", con);
ada = new OdbcDataAdapter(cmd);
ada.Fill(data1);
cmbvnoview.DataValueField = "vehicleno";
cmbvnoview.DataSource = data1;
cmbvnoview.DataBind();
Above code is working, but is displaying all the values, first it should display a null value, then it should display all the values.
HiI am trying to send null value from my combobox and check it if its null in sp.
IF @Param1 IS NOT NULL
BEGIN
SET @Param1=@Param1
END
ELSE
BEGIN
SET @Param1=' IS NULL'
END
mmsDataContext mms = new mmsDataContext();
RadGrid1.DataSource = mms.SON(Country.SelectedItem.Value);
RadGrid1.DataBind();
I have two table BuildGroup and table DocumentTemplate. DocumentTemplate table has BuildGroupId as foreign key which is nullable. In a certain senario I update BuildGroupId in DocumentTemplate table.
[Code].....
In another senario I need to set BuildGroupId in DocumentTemplate table again to dbnull.value. I tried with different cases as in else block. It giving the error : Cannot implicitly convert type 'System.DBNull' to 'int'. How can I update a foreign key value with NULL?
Passing a null or nothing value to a datatime datatype database field (Access)
I've been all over the internet looking at this and I have tried dozens of methods without success.
I've read a few forums where, some say you can not assign a null value or a nothing value to a datetime datatype field. Then I see others where they say...'I got it to work'.
If this is true (that you can not pass a null value), how come I can create a record in the Access table and not assign a value to this date field? (The field is defined as not required).
Yet, once a value is in the field, I can not update that field back to a null or a nothing value.
So I'm hoping someone has the definitive answer to this.
I am using VB.Net Vs 2003 and updating an Access data base.
I have an update statement (see below) that uses parameters for updating.
what will work, so that I can put back the null or nothing value?
Or if it really can not be done, I guess I'll have to take that as truth.
[Code]....
I use VS2005 on Oracle 10gR2. Using
(System.ComponentModel.DataObjectMethodType.Update,
True) to update database row that returns null values from date and numeric columns,Whenever i try to update same row with null (or empty) values on both date and numeric columns, it results in sending '01-Jan-0001' for date column and 0 for numeric column. I want the user to have the options of null or corresponding values for the update.
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 am updating a gridview. Problem is that when I hide certain fields that I do not want the user to update, they lose their values ie. the data is wiped out in the field unless I show them on the grid and make them writeable. Is there a property I need to set for the field to retain the value when the grid is updated or is this in the sql statement?
View 7 RepliesIs there a way to programmatically select the entire string of the selected item in the AJAX Combobox?What I'm trying to do is bascially on a State/City selection.
1. User selects a State from the first combobox. This triggers the City combobox to be populated. The item(0) is "Select One:".
2. I want the entire "Select One:" to be hightlight as if the user had used their mouse and highlighted all the text.
The reason for this that I'd like the user to be able to start typing the city without needing to clear out the "Select One:" manually.
How do you refresh a combo box from clicking on something from another Combobox (using Visual Basic).
I don't want to use a button for this as i know it works that way by using .Databind() on the other combobox.
In access it is so easy by using the click event on a combo box but visual studio does not seem to use it.
I was trying to use CssClass="WindowsStyle" with the following CSS. Its working fine if WindowsXP theme is selected but when the theme is changed it looks odd (different from other controls).
I wish to have the ComboBox similar to the style used by other controls. Please give me the solution for this issue.
I understand the issue is with the button(background-image: url(../images/windows-arrow.gif);) but what could be the alternate solution?CSS used
[Code]....
I am using ASP.NET 2.0
I want to create a dll Only for Ajax ComboBox. I mean I want when I add this dll in toolbax, I able to drag Ajax Combo Box control on web form.Ajax provided source code & JavaScript files for ComboBox but how I can Create a dll from this.
I have been trying to figure out how to Clear out the contents of a combobox; both the dropdown list and the textbox. Currently I have
combobox1.Items.Clear()
combobox1.ClearSelection()
this is clearing out the listbox, but if something was in the Textbox it remains. If I add
Combobox.Text=""
then I get "Combobox has a SelectedValue which is invalid because it does not exist in the list of items."
I've tried several other combinations, none of which worked. how to clear out textbox portion of the combobox?
i have a combobox in form but it is not showing in ie only text box is there .
View 1 Replies<table class="style10">
<tr>
<td bgcolor="#CCFFFF">
<ContentTemplate >
<ajaxToolkit:Accordion ID="Accordion1" runat="server" SelectedIndex="-1" AutoSize="None"
FadeTransitions="true" TransitionDuration="250" FramesPerSecond="40"
RequireOpenedPane="false"
SuppressHeaderPostbacks="true" ContentCssClass="contentfont">
<Panes>
<ajaxToolkit:AccordionPane ID="AccordionPane1" runat="server">
<Header>
<div align="center">
<asp:Label ID="lblbillingaddr" runat="server" Text="Personal Details" Font-Bold="true"
Font-Underline="true"></asp:Label>
</div>
</Header>
<Content>
<table >
<tr>
<td >
<asp:Label ID="Label1" runat="server" Font-Bold="True" Font-Names="Tahoma"
Font-Size="Small" Text="Name"></asp:Label>
dfdsfd</td>
<td>
<asp:TextBox ID="txtname" runat="server" Width="127px"></asp:TextBox>
I want design calender Using ComboBox,how To Code it.
View 3 RepliesWhen I add a combobox inside an accordionpane i cannot see the button and the list except for the pane selected by default.
View 5 RepliesI'm getting an error in all browsers with the ComboBox that in IE causes the user to not be able to enter data into any other field on the form. In Firefox it just throws an error but doesn't cause any problems.
The error is this:this.ajax__combobox_prototypes[i]._popupBehavior is null
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 Replies