Tracking Forums, Newsgroups, Maling Lists
Home Submit Tracker Forums
  Advanced Search


How To Refresh The Dropdownlist Box

I have used the dropdownlist box. Now i want to refresh that dropdownlist every time i select the item from it.I have written a event handler function for that.Also made autopostback = true. But still it is not working.

View 17 Replies (Posted: Dec 22, 2008 07:24 AM)

Sponsored Links:

Related Forum Messages For ASP.NET category:
How To Refresh The DropDownList Without DataBind The DropDownList Because AppendDataBoundItems="True"
I have a DropDownList in my page, it DataBind with a objectDataSource.

when user select an option base that i have a FormViewthat show the detail of selected option an it also work with an othere ObjectDataSource.

when user insert, delete or edit an option for example the name of option will in edit mode changed and i need the DropDownList be refresh that show the new name of option.

i alredy know where should i write the code but i don't know how to refresh the DropDownList without dataBind the DropDownList because AppendDataBoundItems="True".

Posted: Apr 07, 2010 01:39 PM

View 2 Replies!   View Related
Refresh DropDownList From EntityDataSource?
What my code does is that the EntityDataSource has a Where Parameter tied to the first DropDownList and it populates the second DropDownList, but when the first DDL changes, the EntityDataSource doesn't change the values of the second DDL. Worth mentioning this is inside a ModalPopupExtender which is inside an UpdatePanel. Maybe there is a way in just putting all the data in the second DropDownList and filter it depending on the value of the first one... or something like that... so there's no need of refreshing the data.

<asp:DropDownList ID="PaqueteKitDropDownList" runat="server" DataSourceID="PaqueteEntityDataSource"
DataTextField="Nombre" DataValueField="ID_Paquete" />
<asp:EntityDataSource ID="PaqueteEntityDataSource" runat="server" ConnectionString="name=CCEntities"
DefaultContainerName="CCEntities" EnableFlattening="False" EntitySetName="Paquetes">
<br />
<asp:Label ID="Label66" AssociatedControlID="PlanKitDropDownList" runat="server"
Text="Plan:" />
<asp:DropDownList ID="PlanKitDropDownList" runat="server" DataSourceID="PlanKitEntityDataSource"
DataTextField="Duracion" DataValueField="Costo" />
<asp:EntityDataSource ID="PlanKitEntityDataSource" runat="server" ConnectionString="name=CCEntities"
DefaultContainerName="CCEntities" EnableFlattening="False" EntitySetName="Duracion_Plan"
Where="it.ID_Paquete == @ID" OrderBy="it.Duracion ASC">
<asp:ControlParameter DbType="Guid" Name="ID" ControlID="PaqueteKitDropDownList"
PropertyName="SelectedValue" />

Posted: Mar 18 at 12:01

View 2 Replies!   View Related
How To Refresh Data In Dropdownlist
i have a drop down list with data in it... how do i refresh it when the user adddata into the databast or delete data? i tired adding data in.. the data was stored in the database but was not showed on the drop down list... how do i refresh the values in the database?

Posted: Sep 09, 2008 04:13 AM

View 14 Replies!   View Related
C# - Disable Refresh When Dropdownlist Is Open?
i have a webpage that loads data into a gridview and refreshes the gridview every few seconds. I do this via a asp:Timer which runs a C# function every few seconds to requery the database and databind the gridview.

I also have a few dropdown lists to filter data from the gridview. These dropdown lists get their data from the same dataset as the gridview (e.g. if the gridview shows the stats of all apples being plucked from trees, then the list may contain e.g. all distinct apple types). How i refresh these dropdown lists is again to requery the dataset and reset the selected index to be one selected at time of refresh. So this causes a problem where the timer is up when the dropdown list is open - the index on the dropdown list is selected and refreshes the gridview, the dropdown list also refreshes with the current selected index and closes.

So the question i have how to disable my timer refresh from going off while the dropdown lists are active - or maybe how do i do this better?

Posted: Jan 27 at 3:58

View 1 Replies!   View Related
Web Forms :: Refresh DropDownList After Removing Items?
This is a basic question: i am updating a DropDownList by deleting the relevant items, the problems is that items are removed but the DropDownList still present different values (it doesn't refresh itself)

Here is the code:


Posted: Oct 27, 2009 08:01 AM

View 1 Replies!   View Related
AJAX :: Getting Dropdownlist To Update Without Postback / Refresh
I have a number of cascading dropdownlist controls on a page. The results in dropdownlist2 are dependent on the results in dropdownlist1, pretty basic stuff.

I now would like to eliminate the terrible postback or refresh of the page that occurs after the SelectedIndexChanged event fires on dropdownlist1, is it possible to do that in Ajax?

What I want the results in dropdownlist2 to populate without the obvious refresh of the page.

Posted: Jun 27, 2010 11:04 PM

View 2 Replies!   View Related
Web Forms :: Howm To Refresh Page Update In DropDownList
I want dont refresh page updata DropDownListI donot use AjaxToolKit

Posted: Jan 12, 2011 07:24 AM

View 2 Replies!   View Related
AJAX :: Dropdownlist.onselectindexchanged Only Refresh Some Portions Data, Not The Whole Page?
I have the webpage with below code. There exists dropdownlist within the gridview and updatepanel. I hope that the dropdownlistddlAltProduct refresh only some portion of data in div when OnSelectedIndexChanged. Not the whole page as now as you see autopostback='true'. How to change the current situations???

<asp:UpdatePanel ID="updPanel" RenderMode="Inline" runat="server" UpdateMode="Conditional">
<asp:Label runat="server" ForeColor = "Red" ID="lblMsg" ></asp:Label>


Posted: Mar 25, 2010 04:29 AM

View 5 Replies!   View Related
Web Forms :: Add Blank Item In Dropdownlist Without Using Appenddatabounditem After Control Parameter Refresh?
How to add blank item in dropdownlist without using appenddatabounditem after control parameter refresh?

Posted: Feb 02, 2011 07:31 AM

View 1 Replies!   View Related
Forms Data Controls :: Report Viewer Refresh / Anyway To Call The Refresh Method From Codebehind?
I have a problem when I try to pass in paramaters for a report in my report viewer. I have set up the ObjectDataSource and set the paramaters for 3 text boxes that are on the page. The only way I have found to set the paramaters for the report is the user must fill in the paramaters and hit the refresh button on the Report Viewer toolbar ,but I would like to have the user click a button insted. Is there anyway to call the refresh method from codebehind?

Posted: Mar 03, 2010 09:59 PM

View 1 Replies!   View Related
Refresh Small Part Of The Webpage Without Refresh The Entire Page In C# ?
how we can refresh small part of the web page without refresh the entire page in C# ?

Posted: Mar 11, 2011 09:08 AM

View 2 Replies!   View Related
SQL Server :: Database Refresh Time / To Know When The Last Refresh Has Happend?
we have a sql server 2005...that has 70-80 databases and hundreds of tables....

It is supposed to refresh every night.... refresh is done by other vendor(3rd party).... we dont know what method(technology) they use to refresh the databases....

My question is .....

Is there a good way to know when the last refresh has happend...can we determine it from sys tables.....

the sql server is installed in window server 2003 box.... we have access to the box as well as the sql server.....

Posted: Jul 20, 2010 03:05 PM

View 11 Replies!   View Related
Web Forms :: Make An Ifrom Refresh Without Having To Refresh The Whole Page?
1. Is there anyway to make an ifrom refresh without having to refresh the whole page?

2. My iframe just wont display when I run it. It just displays a grey screen with the file name in the middle.


Posted: Jan 18, 2010 08:45 PM

View 3 Replies!   View Related
C# SQL And Browser Refresh Options For Refresh Page
I have a coupon print page that records theamount and data to a table, retrieves the Identity as the CouponID #, and then displays it onto the Coupon so the log displays who printed the coupon and for what amount.I also record if and when the coupon was redeemed. This preventasomeone from using the same coupon twiceHowever on the Print Coupon page, If a person hits the refresh button, it records another line and prints another coupon for the same amount but adds another line and CouponID

Posted: Dec 22, 2009 08:38 AM

View 2 Replies!   View Related
Forms Data Controls :: How To Refresh Page Without Going To Top Of Page When Refresh Is Done
I have a table on my page. I need to scroll down a little to get to that table. In that table i have som data that i edit and save to database. When the save is done i need to refresh the page( Response.Redirect(Request.RawUrl )) so it loads the new data to that table. When the refresh is done the page is on top again so that i need to scroll down again to see the table. This makes it very unusable for the user.

How can i refresh the page without it going back to top again? I tryed wrapping an updatepanel around the table but it didnt

Posted: Nov 03, 2010 09:32 AM

View 1 Replies!   View Related
Page.Refresh Type Of Command To Refresh A Page?
Is there a Page.Refresh type of Command to refresh a page? I don't want to redirect to the page or refresh in javascript.

Posted: Feb 10 10 at 20:57

View 4 Replies!   View Related
C# - Disable Or Enable 2nd Dropdownlist In Aspx Based On Selected Choice Of The 1st Dropdownlist Box
I am having a problem with disabling DropDownList based on the chice of 1st DropDownList, there is no post back occuring, and it is a template based web app here is the current code:

<script type="text/javascript">
$(function() { var dropDownList1 = $('#<%= ddlUserType.ClientID %>');
var dropDownList2 = $('#<%= ddlMember.ClientID %>'); dropDownList1.change(function(e) {
if ( jQuery("#ddlUserType").val() != "ETOC") dropDownList2.removeAttr('disabled'); e.preventDefault();
dropDownList2.removeAttr('enabled'); e.preventDefault(); }
} );

what is happening now is page is blank and if I remove the above code everything shows, where I am going wrong. here is the plain and final javascript code which worked:

<script language="javascript">
function CheckDropDownState(lstbox)
if (lstbox.selectedIndex == 3) { document.forms[0].ddlMember.disabled = 1; }
else { document.forms[0].ddlMember.disabled = 0; }

and thew .aspx code: <asp:dropdownlist id="ddlUserType" runat="server" onclick="CheckDropDownState(this);"></asp:dropdownlist>

Posted: Apr 15 10 at 17:30

View 2 Replies!   View Related
Forms Data Controls :: How To Extract Value From A Dropdownlist After Bind 7 Column Name In A Dropdownlist
I have a table and 7 column name.

I bind the 7 column name in one dropdownlist.

Now the problem is,how do I extract the data value in a dropdownlist?

For example,

Dropdownlist contain 7 column name








when I click the subject_name,I want it to appear in a gridview



Below is my current codes which I have a problem.

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "SELECT '" + dd_list.SelectedValue+ "' FROM examtimetable ";
adapSel = new SqlDataAdapter(mySQL, conn);
DataSet dsSel = new DataSet();
GridView1.DataSource = dsSel;
Previously I have bind 7 column name in my dropdownlist
protected void Page_Load(object sender, EventArgs e)
if (Page.IsPostBack == false)
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlCommand sqlCmd = new SqlCommand("select column_name from information_schema.columns where table_name='examtimetable' and COLUMN_NAME not like '%ID'", conn);
SqlDataReader ds;
ds = sqlCmd.ExecuteReader();
dd_list.DataSource = ds;
dd_list.DataTextField = "Column_Name";
dd_list.DataValueField = "Column_Name";
dd_list.Items.Insert(0, "Select Option");

Posted: Mar 29, 2011 02:24 AM

View 10 Replies!   View Related
DataSource Controls :: Display Employee Name In Dropdownlist Depend On Departments Name In The Other Dropdownlist
i use 2 dropdownlist with 2 object data source first dropdownlist to display departments name using object datasource (field to display DeptName , value of field DeptID)

second dropdownlist to display Employee name but depend on departments (field to display EmpName , value of field EmpID)

how to display employee name in dropdownlist depend on departments name in the otherdropdownlist

2 tables

1 table deprtmentswith column(DeptID , DeptName , DeptDescription)

2 table Employeewith column (EmpID , DeptID , EmpName)

Posted: Nov 15, 2010 10:05 AM

View 3 Replies!   View Related
Forms Data Controls :: What Is The Code For Dropdownlist After Binding All Columns Name In A Dropdownlist
Currently,below is my code.

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
SqlConnection conn = new SqlConnection("Data Source= E\SQLEXPRESS;" + "Initial Catalog=k;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "select column_name from information_schema.columns where table_name='examtimetable' '" + dd_list + "'";....

I receive an error "Incorrect syntax near 'System.Web.UI.WebControls.DropDownList'."

Posted: Mar 28, 2011 07:31 AM

View 3 Replies!   View Related
Forms Data Controls :: Make Another Dropdownlist Visible = False When Clicking In Dropdownlist On The Same Detailsview?
I want to making another dropdownlist visible=false when clicking in dropdownlist on the samedetailsview?

Posted: Mar 08, 2010 07:09 AM

View 4 Replies!   View Related
Web Forms :: Nested Dropdownlist Ondatabound => Bind Other Dropdownlist Fail
I have a gridview with 3 nested dropdownlists in one cell on edit like this:To get the exact fields when the user clicks on edit I used the following code(yes it's messy)


The BLLOnderhoud is a class and the getReserveInfo is used to get the Model - Brand(merk) Information.Since the dropdownlists are nested in the gridview I can't call them directly and they can't call any of my functions.And this is the problem, when I change the dropdownfield Model the Auto field wich is the last dropdown(in the picture is a typo) should be binded like in the following code:


But the dropdownlist onDataBound event can't call any of my functions that are in my class.So my question is how can the onDataBound event of the second dropbox trigger a function? The only thing that the function has to do is to bind the 3rd dropdownlist

Posted: Dec 09, 2010 03:53 PM

View 4 Replies!   View Related
Web Forms :: Disable Postback When Select Dropdownlist To Control Other Two Dropdownlist Value
I had use a combox to let user select staff name and then it will automatically retrive the responsible recommending officer and approving officer to display in other 2 dropdownlist.

my code works fine but when user select staff name each time, the page will reload once to refresh the dropdownlist.

user complaint and don't want the page reload every time, how can i disable the postback? I need to use ajax?



Posted: Mar 25, 2011 04:57 PM

View 5 Replies!   View Related
Disabling Dropdownlist Inside A Gridview Based On Value Selected On Another Dropdownlist?
what i m trying is i hav two dropdownlists inside the gridview... namely say ddonsiteoffsite and ddhours... now what i want is if the selectedtext of ddonsiteoffsite is "onsite" the ddhours should b disabled... i tried the code snippet but ... its not disabling the ddhours... can someone help me please..

<asp:TemplateColumn HeaderText=" OnSite/OffSite" >
<asp:DropDownList ID="ddOnsiteOffside" runat="server" onchange="ToggleOnOff(this)">

Posted: Jan 11 at 8:35

View 2 Replies!   View Related
C# - DropDownList Validation - ModelState.IsValid Is Always False / DropDownList Won't Be Validated
I try to create a mvc 2 application.

My DropDownList won't be validated!

I have a core model class called Animal with some attributes and the same for the class Genus. These classes are mapped to nHibernate.


Posted: Feb 10 at 16:50

View 1 Replies!   View Related
Web Forms :: Populate One Dropdownlist Based Upon Action Of Another Dropdownlist?
I have two dropdownlists and trying to populate second dropdownlist based on selection of item of another(first) dropdownlist.First dropdownlist contain class number and according to the class number the second dropdownlist should show the subjects from database. I am using c# with ASP.NET and MSSQL server. waiting for the reply.

Posted: Jun 05, 2009 07:21 AM

View 7 Replies!   View Related
C# - Populating Dropdownlist Using MVC2 Based On Another Dropdownlist (Cascading)
I am making an application that deals with vehicles. I need two DropDownLists:

Makes: All Vehicle Makes
Models: Models that belong to the selected value of the Make DropDownList

How is this done in MVC2? My Idea: Do I use an ajax call when my first list is selected and then pull back the Models to bind to the Model DDL? How would model binding come into play that way? UPDATE I posted what I ended up doing as an answer. It is super simple and works great. You can use a get too if you feel so inclined, but you have to specify that you want to like so... return Json(citiesList, JsonRequestBehavior.AllowGet);

Posted: Sep 18 10 at 22:41

View 4 Replies!   View Related
Access :: Adding Item To Dropdownlist From Database Using First Dropdownlist?
i have two dropdownlist , i want to add item in dropdownlist 2 from database if the city is changed in first dropdownlist..I am using access database

here is my code:


but when i select any text , it will not show anything in dropdownlist2 ..

Posted: May 28, 2010 06:54 AM

View 2 Replies!   View Related
Web Forms :: Populate Dropdownlist From Another Dropdownlist Selection?
I have 2 dropdownlist, one is to dropdown department, and another dropdown staffnames. the secong dropdownlist will based on the selection of department as each department has different staffs i have 2 tablesdepartment and staff in my database ,in my department table i have departmentid asPK and departmentname, in my staff table i have staffname and departmentid as FK. So my ques is how am i going to populate staffname in the dropdownlistaccording to the selection of department.

Posted: Dec 29, 2010 05:48 AM

View 9 Replies!   View Related
MVC :: Dropdownlist Template Dosn't Show Dropdownlist?
i am created aTemplate for showing dropdownlist when i used the Template by this code

<%= Html.Editor("ItemStatusID", "ItemStatusList")%>

i didsee a text box no dropdownlist this is my Template


Posted: Mar 30, 2010 11:17 AM

View 1 Replies!   View Related
Web Forms :: Populating Dropdownlist Upon Selection Of Another Dropdownlist?
I have one table which contains branch codes(primary key), Branch name and bank name columns. I have 3 dropdownlist boxes. the first dropdownlist is for the branch codes. When i select the a branch code i need the second dropdownlist box to populate with the appropriate branch name and the third dropdownlist box to populate the bank name at the same time.

Is it possible to have one table like mine and acheive this, if so how do i go about doing this?

I did read up on this but only came across ones with 3 tables.

I am using Visual Basic to do this.

Posted: Jan 19, 2010 05:33 AM

View 7 Replies!   View Related
Binding Item To Dropdownlist From Another Dropdownlist?
i have two dropdownlist.i bind somthing to first dropdownlist from database.I want when I select an item fromdropdownlist1 see some item in dropdownlist2 .but when i select item from dropdownlist1 ,I give this error.

i wrote this code but it doesn't work.

for binding item to dropdownlist1 i wrote this code:


Posted: Nov 07, 2008 12:07 PM

View 12 Replies!   View Related
Populate Dropdownlist From Another Dropdownlist With Objects In MVC 2
I am trying to develop a simple MVC 2 timesheet application for my small business. I have a sort of mock model for now until I have a database in place, just to make things simpler while I develop the functionality.


But then I need to populate a second dropdownlist (taskDropDownList for the tasks associated with a particular customer) based on the selection the user chooses in the customer dropdownlist. But how do I do this exactly? I have seen examples with jQuery, but I'm not sure how to apply them to this situation. Also, the examples seem to just populate the lists with string values. I need to be able to access the objects with all their properties. Because the next thing I need to do is to be able to populate the TimeSegments list of the selected task with values from input fields (i.e. the hours worked for particular dates). And for that to be saved to the "model" (eventually to the database) in the controller, how do I get it there, unless the objects are all part of the same model bound to the View? I'm on rather thin ice with this since I still find the connection between the View and the Controller hard to handle, compared with e.g. Windows development, where these things are rather easy to do.

Posted: Dec 5 10 at 21:15

View 1 Replies!   View Related
Set Dropdownlist / Dropdownlist Is Not Filled Anymore?
I have 2 dropdownlists; 1 filled in front aspx (only 2 values) and 1 filled in back aspx.cs.

I have following code:

Measurements measurements = value;
if (measurements != null)[code]...

In the last line I do get an null exception. It seems that my dropdownlist is not filled anymore. What can I do about it?

Posted: Apr 29, 2009 09:39 AM

View 9 Replies!   View Related
How To Fill A Dropdownlist After Selection Of Another Dropdownlist In
my requirement is like that,i have two dropdownlist in first dropdownlist i have filled data from database now if i select a data from first dropdownlist second dropdownlist should filled with related data from database.

Posted: May 20, 2009 09:08 AM

View 4 Replies!   View Related
MVC :: Create Dropdownlist From Another Dropdownlist Select?
I have an user form with two dropdownlists. One with enterprises, where lists all enterprises created, another of areas created inside this enterprises.

I need that, when i select an enterprise, the area dropdownlist shows only the areas created in this exactly enterprise.

How can i do this?

I tried to do, but it doesn't work.

This is the code:


Posted: Sep 04, 2009 07:29 PM

View 5 Replies!   View Related
DropDownList / Based Off What Is Selected As The Dropdownlist?
I am trying to make a simple dropdownlist.Based off what is selected as the dropdownlist, I want it to open a new webpage.

For example:

Here is the dropdownlist - If they select team1, I want it to open up webpage /team1.aspx If it's team2, team2.aspx and so on.

<form id="form1" runat="server">

Posted: Oct 06, 2010 08:26 PM

View 2 Replies!   View Related
Forms Data Controls :: Data Populate From One Dropdownlist To Second One Dropdownlist?
I am using 3 dropdown list in a gridview and the values for the dropdownlist is dynamic from database.based on first dropdown list selected value the values must fill to second dropdown and based on second dropdownlist selected value then items should load to 3rd dropdown and same for 4th dropdown list. Here if i select age,gender,sex, fist name, last name from the template name Human. The first drop down only populate the fields like Age,gender,Sex and so on., When the second dropdown list populate from the fields corresponding Template name Human, Finance, and so on.

Posted: Dec 02, 2010 08:43 AM

View 3 Replies!   View Related
Dropdownlist - "Cannot Have Multiple Items Selected In A DropDownList.&quot?
how i handle this problem..Its in hidden filed.

Server Error in '/DentalClaimPrjt' Application.

Cannot have multiple items selected in a DropDownList.

Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Cannot have multiple items selected in a DropDownList.

Source Error: [Code]....

Line 85: function openPopup2(did)
Line 86: {
Line 87: var hdnClm1 = document.getElementById('<%=hdnCliamid.ClientID%>').value;
Line 88: window.location="Form.aspx?DeleteRSPid=" + did + "&Editid="+ hdnClm1;
Line 89: }

Source File: d:DentalClaimPrjtForm.aspx Line: 87 Stack Trace: [Code]....

[HttpException (0x80004005): Cannot have multiple items selected in a DropDownList.]
System.Web.UI.WebControls.DropDownList.VerifyMultiSelect() +106
System.Web.UI.WebControls.ListControl.RenderContents(HtmlTextWriter writer) +124

Posted: Apr 29, 2010 06:21 AM

View 2 Replies!   View Related
Copyright 2005-08, All rights reserved