Forms Data Controls :: Reload Items In Dropdownlist?
Jun 22, 2010i have dropdownlist. After i loaded data from javascript to dropdownlist,i used dropdownlist.item.count but counter always null. how to refresh dropdownlist?
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Web Forms :: Reload Dropdownlist Items From Aspx Code
May 14, 2010I removed some items from a dropdownlist, and now I want to re-initialze the items which I have on aspx file.
<asp:DropDownList ID="s1" runat="server">
<asp:ListItem Value="0.00">Select</asp:ListItem>
<asp:ListItem Value="0.25">0.25</asp:ListItem>
<asp:ListItem Value="0.50">0.50</asp:ListItem>
<asp:ListItem Value="0.75">0.75</asp:ListItem>
<asp:ListItem Value="1.00">1.00</asp:ListItem>
<asp:ListItem Value="1.25">1.25</asp:ListItem>
<asp:ListItem Value="1.50">1.50</asp:ListItem>
<asp:ListItem Value="1.75">1.75</asp:ListItem>
</asp:DropDownList>
Such as I removed "1.50" and "1.75", and when a button clicked, the dropdownlist will initialze again with these 8 items. How do I do that?
Forms Data Controls :: Reload Datasource And Dropdownlist?
Jun 10, 2010i think i can't see the forrest for the trees.......there HAS to be a simple way to do this. so i created a web page and on that page i have two dropdown lists. the first is STATE and the second is COUNTY. the STATE is a static list. but the COUNTY is generated whenever the STATE changes. now....when i set up the COUNTY dropdown list, it prompted me for a datasource. i have a store procedure which takes the 2-letter STATE code and returns all the counties for that state. so i set up the datasource for the COUNTY drop down list by just following the prompts from visual studio. i gave it a default state of Alabama (AL). and all is fine. so here's my question: how can i reload the datasource and subsequently the COUNTY dropdown list? i see no way to access the datasource that the environment generated for me.
well.....i thought.......i'll just do it the old fashioned way and set up a command.......connectionstring.......and sql statement and load the results into a datareader (do i REALLY have to do all that?)
but it still doesn't work. what's the simplest way for me to just re-fire my stored procedure and pass it the STATE parameter and reload the datasource and dropdown list?
Forms Data Controls :: MS Bar Chart.How To Reload Ms Bar Chart On Selecting A Value From A Dropdownlist
Jan 28, 2011I have a drop downlist,and next to it there is an MS bar chart.i want to change the datate of the MS chart ,once the user selects another year from the dropdownlist.
When the page loads ,the chart displays the default year(2011) and it works.The problem is that is does not change the data when you select another year from the dropdownlist.
Forms Data Controls :: How To Add New Items From Dropdownlist
Nov 18, 2010I have a dropdownlist which get item from database (say this field has 10 records for this dropdown list.
I want the users are not restricted to these 10 items. What is the quickest way to do so the user can type in new values and insert into database ?
Forms Data Controls :: Check If Dropdownlist Has Any Items?
Nov 18, 2010I have a DropDownList with a list of orders. When an order is selected from the list I generate a GridView with details of that order. Within the GridView I call other databound controls and all works fine until I finish the orders in the DropDownList
I have tried to enclose the code within a if dropdownlist.items isnot nothing end if but it makes no difference
This is the code:
Protected Sub GridView1_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles GridView1.DataBound
If DropDownList1.Items IsNot Nothing Then
GridView1.SelectedIndex = 0 [code]...
Forms Data Controls :: Select Multiple Items In A Dropdownlist
Jan 11, 2011i need to select multiple items in a dropdownlist. This is my code,
<asp:DropDownList ID="ddllocation" runat="server" Width="80px">
<asp:ListItem>Chennai</asp:ListItem>
<asp:ListItem>Madurai</asp:ListItem>
<asp:ListItem>Coimbatore</asp:ListItem>
<asp:ListItem>Nilgiris</asp:ListItem>
<asp:ListItem>Palaghat</asp:ListItem>
</asp:DropDownList>
How can i add tat option.
Forms Data Controls :: Cannot Add Items To A Dropdownlist Within A LoginView Control
Mar 25, 2011I have a Dropdownlist within a LoginView Control as follows:
[Code]....
And in my code behind I can successfully reference the dropdownlist as follows:
[Code]....
However as soon as I try to add an item to the dropdownlist it all falls apart: The (pseudo) code to add an item is:
[Code]....
The error I get is:
[Code]....
Forms Data Controls :: How To Populate Dropdownlist Whit Items In Listview
May 24, 2010In my project I have a listview which I am binding from code behind. Now I would like to add a droppdownlist for each item in listview. So my question would be:
Is there a way to populate my dropdownlist whit data which I have in a List?
Here is a bit of code to show how my listview looks like:
[Code]....
Forms Data Controls :: DropDownList In The FooterTemplate Of A DataGrid Will Not Show Its Items?
Oct 13, 2010I am placing a dropdown list in the footer of a DataGrid like this:
[Code]....
In my code behind file, in the myDDL_OnLoad event handler, I call to the database, populate a SqlDataReader, and set the DDL's datasource to that datareader. I define what data columns should be used for the DataValueField and DataTextField of the dropdownlist. Then I call the DropDownList's DataBind() method. Everything works without error. But, when the dropdownlist is displayed, it has blank lines in it.
By that, I mean if 8 records are loaded into the dropdownlist, it will expand to a size appropriate for 8 rows but, it will be empty. there is no text in it.
Has anyone seen this type of behavior before? This dropdownlist is in the footer of a dynamically loaded ajax update panel so, it is difficult to see the source code to see what values are in the html element rendered to represent the dropdown.
Forms Data Controls :: DropDownList DataBind; Appends Instead Renew Items?
Apr 9, 2010environment: VS2008 When running below code the DDLKlient.DataBind() appends the whole set of names to the already existing list. I.e. I have 2 sets of names in the DropDownList!Question:? what can I do to prevent appending and just get 1 (one) set of names?? is there any refresh option?
Protected Sub DVKlient_ItemInserted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewInsertedEventArgs) Handles DVKlient.ItemInserted
Dim connString As String
[code]...
Forms Data Controls :: Unable To Get Multiple Items Selected In A DropDownList Exception?
Jul 21, 2010I am trying to hide 2 buttons depending on the value in the dropdownlist. It works when the page is initially loaded but chokes when returning to the page sometimes. I have some pretty simple code in the Page_Load event within an If Not Page.IsPostBack statement
[Code]....
[Code]....
Forms Data Controls :: Limiting Items In Dropdownlist For Gridview Edit Mode
Jan 18, 2011I have a Gridview showing the MemberLastName, MemberFirstName, MemberBirthYear, MemberGender, MemberRelationship.
During Edit mode, I have managed to display a DropDownList for the Relationships.What I am trying to achieve now, is that, based on the Gender of the member I would like to limit the items in the Relationships dropdownlist.
e.g if the Gender is Male, then only display Male Relationships
What is the best way to achieve this scenario?Here is my snippet of code for the event. The code is commented out as it throws an exception.
[Code]....
Forms Data Controls :: Dropdownlist Bound To Sqldatasource Adds Items Instead Of Replacing On Change?
Aug 26, 2010I have a series of dropdownlists on webform in ASP 4.0. The first drop down is filled upon load, and then when a user selects a value from that list, it populates the second dropdown. To accomplish this, I have a SQLdatasource with a parametersource of the first drop-down list control. This works great, except when a user changes their selection from the first drop down. It performs the query, but then adds the list of items to the ones that were already there from the previous selection, instead of replacing it with the new data. Here is the code:
[Code]....
Do I need to do something on selectedindexchanged to somehow "clear out" the previous datasource? I can't find anything about this online, although one person seemed to suggest it was related to using a master page. (which I am using).
State Management :: Cascading Dropdownlist Will Not Reload With Updated Database Data Unless End And Restart
May 19, 2010I have a cascading dropdownlist. The first drop down is for Departments and is databound on PageLoad from the database. The user then selects a department and the second dropdown is populated with the appropriate sub departments via JQuery/JSON which calls an httphandler. The problem is as follows: I select a department and the subdepartments are filled.
I finish what I'm doing on that screen and everything is fine. But then if I go to a different screen and add an additional subdepartment then come back to original screen, the new sub department won't appear in the cascading dropdown. I have to close the browser and restart the session in order for any new sub departments to appear even though they are in the database. I put a breakpoint in the httphandler and noticed that it is only called once per session per each department in the first dropdown. I don't know why this is happening. I want it to call the httphander EVERY time the index of the department dropdown is changed.
[Code]...
Data Controls :: Check Whether Value Exists In DropDownList Items
May 7, 2015how to check whether a dropdownlist contains particular value for the below codei have a value name
manager="manogar1";
if(mydropdownlist valuecontains the value "manogar") {
} else {
}
Data Controls :: Populate Items In DropDownList From TextBox Value?
Sep 28, 2013Populate items in DropDownList from TextBox Value in ASP.Net ...
View 1 RepliesData Controls :: Reverse DropDownList Items On Button Click
Aug 26, 2013<asp:DropDownList ID="myDropDownList" runat="server"> <asp:ListItem>Aura </asp:ListItem> <asp:ListItem>Adrani</asp:ListItem> <asp:ListItem>Celsi M.</asp:ListItem> <asp:ListItem>Karilo</asp:ListItem></asp:DropDownList>
If I run the asp.net page this gives my normal out put like
Aura
Adrani
Celsi M.
Karilo
Data Controls :: Dynamically Add / Delete And Search Items In DropDownList?
Apr 24, 2014How to insert,update,delete and search facilities provides the asp:dropdownList.
View 1 RepliesData Controls :: DropDownList With ScrollBar For Long List Of Items?
Mar 14, 2014I used below code for put scroll for Dropdown list
<script>
function onSelectMouseDown() {
document.getElementById("<%= DDLcity1.ClientID%>").size = 10;
}
</script>
I define label under DDL like below
Now problem is that when I click on DDL to see Item Label that I define jump to bottom of page I mean lable doesn't stay under DDL it jump bottom.
what should I do?
Data Controls :: Bind DropDownList Selected Items To GridView
May 7, 2015With reference to : [URL] ....
No you cannot add a third parameter in the Dictionary. It contain Key Value pair data.But if you want to add third parameter then simply use DataTable and add these in the DataTable row.Name of Builder , Title Of Buidler , Builder ID
So how to acheive that task ? so far i did like this :
public void AddNewCMP(string PersonName , string PersonID , string PersonTitle) {
var dt = new DataTable();
if (ViewState["CMPDataTable"] != null) {
dt = (DataTable)ViewState["CMPDataTable"];
[Code] ....
Now on button click i want to add six drop down values to AddNewRow(value1,value2,value3) method .... how to do that ?
Data Controls :: Long Text Of Items Causes DropDownList Width To Be Large
Oct 7, 2012I have a web in asp.net and code in vb and sql database. There is a dropdownlist ina page the length is too big. How can I set to multi row or some other kind....
View 1 RepliesData Controls :: Filter DataList Items Based On DropDownList Selection?
May 7, 2015how can set on focus Datalist on Button Click Event for Search show datalist data asp.net?
I want To Show My Dalatist Item When The User Click On Search Button for item Search
Data Controls :: Filter DataList Items Based On DropDownList Selection
Jul 10, 2012I have successfully implemented article - "Print only the items which are selected using checkbox in a ASP.Net DataList control"
I would like to add a dropdownlist above the DataList Control to filter the contents of Datalist and then print the items selected using Checkbox in a ASP.NET DataList Control.
Data Controls :: DropDownList Has SelectedValue Which Is Invalid Because It Does Not Exist In List Of Items
May 7, 2015I got this error when select a row from a grid view to update
'ddl_ctegOf_Product_update' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
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.ArgumentOutOfRangeException: 'ddl_ctegOf_Product_update' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
Source Error:
Line 265: txt_prodID_update.Text = gridTo_updateFrom.SelectedRow.Cells[1].Text;
Line 266: txt_prod_name_update.Text = gridTo_updateFrom.SelectedRow.Cells[2].Text;
Line 267: ddl_ctegOf_Product_update.SelectedValue = gridTo_updateFrom.SelectedRow.Cells[3].Text;
Line 268: txt_cateIn_hardCopy_update.Text = gridTo_updateFrom.SelectedRow.Cells[4].Text.Replace(" ", "");
Line 269: txt_prodID_update.ReadOnly = true;
The code of update:
private void PopulateDropDownList() {
string constr = ConfigurationManager.ConnectionStrings[1].ConnectionString;
using (SqlConnection con = new SqlConnection(constr)) {
using (SqlCommand cmd = new SqlCommand("SELECT CategoryProd_ID,Cate_Pro_Name FROM CategoryOfProduct", con)) {
using (SqlDataAdapter da = new SqlDataAdapter(cmd))
[Code] .....