Two Dropdownlist Nested In A Gridview Control?
Jun 17, 2011a query, as I can make a development of two nested dropdownlist in a gridview, so that one is loaded with data according to the selection of first.
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Asp.net - Dropdownlist Results In Gridview?
Aug 19, 2009I'm having some trouble getting the results of the drop-downs in a gridview, and haven't found any helpful articles for VB code.
What I'm trying to do is build a site for tests. So far I have the gridview built w/the extra column for a drop-down list where the true/false answer will be selected. When the test is completed, there is a submit button. All is well except I need to be able to get the results of each drop-down list on post-back to a variable or array (each test contains 10 questions) so the results can be checked/graded. When the results are determined I would like to display a label in it's place and change the text value accordingly (correct or incorrect), so I'll need to be able to enumerate these as well (i.e. label1.text="Correct!", label2.text="Incorrect!", etc...).
Code so far.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSource1" BackColor="White" BorderColor="#3366CC"
BorderStyle="None" BorderWidth="1px" CellPadding="1">[code].......
The preceding code loads 10 rows, 2 columns (column1:Question | column2-[DropDownLists]:Answer). I'm a freshman when it comes to development, so if you need additional info let me know.
Asp.net - Populate A GridView With A DropDownList Value?
Mar 5, 2012I have created a connection string, and i am populating a dropdownlist with an ID from a sql database.I want to be able to click on a ID from the dropdownlist and run a query to populate a gridview with data. I have made the dropdownlist autopostback = Enabled. I am not getting an error.
Here is my code:
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlContracts.SelectedIndexChanged
Dim ds As New DataSet
[code]....
ASP.NET GridView DropDownList Posts Empty Value
Feb 23, 2012I'm having trouble with a DropDownList within a GridView that posts a NULL value when in fact a value is selected from the list when using inline editing.
The problem is that I can't use this method to bind the value to the UpdateCommand in my SqlDataSource:
SelectedValue='<%# Bind("Value") %>'
The reason for this is because the value might not exist in the list so it throws an exception.
Is there a way I can bind the value to the UpdateCommand without using SelectedValue?
Asp.net - DropDownList Within GridView - Update Row With OnSelectedIndexChanged
Apr 5, 2011I have a list of items in a GridView, with one column I'd like editable through a DropDownList.
I do not wish to put the GridView into 'edit' mode or have any 'confirm/update/save' buttons.. I just want autopostback on the DDL, and an OnSelectedIndexChangedevent to update the row.
Problem is, from my OnSelectedIndexChangedevent within the DDL, although I can see the new value to save, I can't discover the row to update from the GridView.
how I can achieve what I wish? Other than perhaps storing the row id within the DDL? Maybe turn it around so the GridView's events are called?
Creating DropdownList In Header Of GridView
Nov 21, 2011I need to create a gridview which fills its column with data from an excel sheet and for each column in the gridview, the header should contain a drop down list with listitems like telephone, name, price which the user will select and set as the header for the particular column. I imported data into gridview but I am not able to create a drop down list in the gridview. If I try to create a dropdownlist in the designer page, it is just creating the dropdownlist in the gridview header but not populating the data. So How can I create a dropdownlist in the header of the gridview while populating its column data from excel sheet.
The code I used to populate data into gridview is
Dim con As String = ""
Select Case Extension
Case ".xls"
'Excel 97-03
DropDownList SelectedIndexChanged Within Gridview Not Firing
May 6, 2011I have been looking for a solution to this for a while though and seen many posts that show me how to do it but yet I cannot get my SelectedIndex Changed event to fire when the DropDownList is changed.The DropDownList AutoPostBack is set to True,[code]
View 2 RepliesHow To Insert Value In Dropdownlist In The Footer Row Of Gridview
Jan 12, 2010I have Gridview with Template Field.And I Put Dropdownlist at footer row of gridview. but when i insert the value from a database table in dropdownlist , than it generate error.
for filling value i declare variable like in databound event of gridview.
for example: dim varclass as new dropdownlist
varclass=Gridview1.footerRow.findcontrol("ddlClass ")
it generate error that: Object reference not set to an instance of an object.
Searching In Gridview With Dropdownlist An Textbox
Aug 17, 2011i am working in a project and what i want to do is to have a search drop down list and text box. Lets say i have a gridview with all my results from database. In gridview i can see Name, Surname, country, phone number. From the drop down list i want to select the column in which i want to make my search. For example, from 3 choices(name, surname or country) i will select country. Then i have to type a country name in text box and the search engine will make the search for the country column. For example if i will type "U.K" in text box as a result i want all the people(name,surname,country) WHERE COUNTRY = U.K.
[Code]...
Set Dropdownlist In Gridview In Rowediting Event
Sep 7, 2010Trying to get the findcontrol to work so I can set the default value of the dropdownlist I have in a template field, but I'm having no luck. Am I doing something wrong?
[Code]...
Saving State Of Checkbox And Dropdownlist In Gridview?
Nov 30, 2010Firstly i'm not asking for the exact code here but the below is what i'm trying to do:I have a gridview with DropDownList and CheckBox and I have a button outside the gridview that will add a new row within the gridview.I have no problems with the adding row but I have a problem with saving the state of the checkbox/drop down list.Everytime I checked the checkbox and add a new row, all the DDL/CB will be reset.So how can I do it so that when I add a new row, the checkbox that I've checked before will still remain check.
View 3 RepliesAsp.net - Dropdownlist In Gridview Not Fire Select Index Changed?
Nov 18, 2010i have problem for the drop down list in the grid view, it not fire the select index changed. I bind the data for the drop down list when the row databound. But when i select the data, it not fire the select index changed. Another drop down list which hard code the item list fired the select index changed. Below is the code behind and the front end code.
<ItemTemplate>
<asp:DropDownList ID="ddlItem" runat="server" Width="80%" AutoPostBack="true" OnSelectedIndexChanged="ddlPrice_SelectedIndexChanged"></asp:DropDownList>
</ItemTemplate>
[Code]....
Asp.net - Get The Cascading Dropdownlist To Work In A Gridview Edittemplate Fields?
Sep 14, 2011Error is ddlgvRooms' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
I read a lot of people having issues with this particular problem but non of the fixes have worked for my case.I have tried a few different things such as setting appenddatabounditems="true" also tried to set in the itemcollection a default null value.Most of the forums post on this that I read were from a couple years ago im hoping they fixed this bug already and I am just overlooking something.I am trying to get my cascading dropdownlist to work in a gridview edittemplate fields. I created these in my detailsview on insert everything works great.
MySetup Basically I have a webmethod that has 2 functions getRooms and getJacks that are supposed to grab the data from the 2 datasets that I have created.The Datasets get their data from a couple of SQLSTOREDPROCEDURES.My aspx page dropdownlist and AjaxCDDL looks like this
<EditItemTemplate>
<asp:DropDownList ID="ddlgvRooms" runat="server"
SelectedValue='<%# Bind("intRoom") %>'>
[code]....
Asp.net - Which Gridview Event To Use To Add Items To The Dropdownlist Used In The Edit Template
Oct 7, 2010I would like to show different values in a dropdownlist, while editing a gridview, depending on which user is logged in. For example...
The officer would see "Approved by Officer" status.
The director would see "Approved by Director" status
I am trying to add these programatically to a dropdownlist which I have in the edit template of my gridview (approvalsGrid). Here is my code:
Protected Sub ApprovalsGrid_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles ApprovalsGrid.RowUpdating
Dim ApprovalEditDD As DropDownList = CType(ApprovalsGrid.Rows(ApprovalsGrid.EditIndex).FindControl("ApprovalEdit"), DropDownList)
[code]....
I do not get any errors. But get an empty dropdown with no items. Am I using the correct event?
Dropdownlist Invalid Error Edititem Template Gridview
Sep 15, 2011Error Dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value I have been banging my head over this error for about a week now. I have searched posted on other forums and still no solution to my issue. I have seen the FindControl being suggested but do not know how to implement this.
Basically I have 2 webmethods that reference 2 datasets which then populate my ajax cascading dropdownlist. In insertmode they work great however in editmode i get the above error.I have removed the selectedvalue and added
DataSource='<%# Bind("intRoom") which works sort of except for the fact that when you click edit it does not retain the original value of that particular record. Other things i have tried are as following:adding the items to the itemcollection of the dropdownlist turning appenddataitems to true on also tried to use the findcontrol but dont understand that punching my monitor and slamming my keyboard
Now I know i could get this to work by using a sqldatasource with some t-sql to get my dropdownlist to work however I thought by reusing my webmethods my code would be more professional. So if there is anyone out there that can help me understand why the value for my dropdownlist is not being populated or does not exist during gridview editing Also will post code if asked not sure what you would like to see rather than posting everything.
Make GridView Work Like DropDownList Where Can Enable Postback?
Aug 28, 2009How can I make GridView work like DropDownList where you can Enable Postback
View 4 RepliesMake GridView Work Like DropDownList Where Can Enable Auto-Postback?
Aug 31, 2009How can I make GridView work like DropDownList where you can Enable Auto Postback
View 1 RepliesLINQ To SQL Query - Select Customer From Dropdownlist And Then Gridview - Load All Items Of All Orders Of That Customer
Oct 4, 2011I have the following problem: I select a customer from a dropdownlist and then the gridview should load all items of all orders of that customer. I have the following query:
Dim allorders = From ord In db.Orders
Where ord.CustomerID = Convert.ToInt32(CustomerDropDownList.SelectedValue)
[CODE]..............
I also tried to modify the query as follows:
Dim orderitems = From oi In db.OrderItems
Where oi.OrderNumber = (From From ord In db.Orders
[CODE]...........
But this does not work. I just started using LINQ.
.net - Get The ClientID Of Nested Panel Control In Masterpage Using Javascript?
Oct 27, 2010This is the control structure
ContentPlaceHolder
Wizard
Panel
I am using setTimeout to display the panel after x minutes.
How do I get the ClientID of the panel?The line of javascript needed is something like:
setTimeout(displayExtendSession('<%= ExtendSession.ClientID %>', 600000);
[Code]...
C# - Set Focus To A Deeply Nested Control In Windows Forms?
Jul 19, 2011I have a main form that contains a vertical SplitContainer.Inside the SplitContainer's left panel, I have a TreeView control.Inside the SplitContainer's right panel, I have another SplitContainer (this one horizontal). This container is fixed, with headings above the split and a Panel control below it.I dynamically load my own user controls into the Panel control whenever the tree view changes.
Most of the user controls that are dynamically loaded have a DataGridView that should receive focus when the control is initialized. Sometimes this grid is on the UserControl surface directly; sometimes it's in a GroupBox; etc.What is the best way to programmatically set focus on the DataGridView control, given that it may placed within a variable number of control containers? I've tried the obvious - .Select, .Focus, .ActiveControl, etc. None of these seem to work - the TreeView item that I selected is still highlighted, and even though a record is selected in the DataGridView, it doesn't have focus.
Here's the code where I add the user control within the main form:
Private Sub LoadRightPanel(ByVal section As String, ByVal moduleName As String)
Heading.Text = String.Empty
SuspendLayout()
RightPanel.Controls.Clear()
[code]....
C# - DropDownList Inside An Asp.net Calendar Control
Oct 21, 2011Is it possible to add a DropDownList inside a calendar day for the asp.net Calendar control and then to bind it to a SelectedIndexChanged event? I can add the DropDownList inside the day I want, but I've been unable to bind it to the event. I've seen it done for a LinkButton inside a Calendar control, but nothing for a DropDownList.
View 3 RepliesPopulate One DropDownList With Another In A DataList Control?
Feb 10, 2012Have two dropdownlist inside the edit template of a DataList. The first dropdwon is for state while the second is for town. The state is populated from a table state while the second from a table town when state is selected.
View 1 RepliesVS 2008 Override DropDownList Control
Aug 12, 2009For the page I'm developing I need a DropDownList with CheckBoxes on it, so that the users can choose more than one option without having to use the Ctrl key (and it's more intuitive). Because my options are being retrieved from the Database, the list of option can be really big, so using a CheckBoxList would use a lot of space. with this? I'm almost desperate! I have been search for a couples day, but having problems in everything I tried. What I'm trying to do now is override the DropDownList control (as suggested in this forum: [URL]), but I'm having problems right in the first line:
[Code]....
Control Binding DropDownList Before Display Items?
Dec 22, 2010Im using Visual Studio 2008 (ASP.net) to build some web pages..
I have a DropDownList linked to a DataSource from data base to fill it automaticly, and it works perfect, but I want to modify the items before its displayed ?
Custom Control Combobox - Set DropDownList As Default
Sep 3, 2009i create my custom combobox control and i'd like to set DropDownStyle property on DropDownList but it not works correctly. [Code] When i put my custom control in my form i want to see DropDownStyle set to DropDownList and not DropDown as default.
View 9 RepliesUnable To Display Records In DropdownList Control
Jan 20, 2011I am using VB.Net 2010, and when I run the following code, I get System.Data.DataViewManagerListItemTypeDescriptor displaying in the dropdownlist box
cmbProdType.DataSource = ds
cmbProdType.DisplayMember = "ProductType"
cmbProdType.ValueMember = "ProductCode"
When I hover over the datasource, I can see the correct records. But its not displaying in the dropdownlist control.
VS 2010 : Add Dropdownlist Control To Datagridview Column?
Jun 15, 2012Oh masters of VB i call upon your power once again !! i'm trying to do the following and i'd like your advice on how to do it because i don't know...i want to add a dropdownlist control to a datagridview, which will be bound and display a specific value for each row (based on a key cell on each row) and that i will be able to select a different value (from the dropdown) and then save the changes to the database.
View 6 RepliesSelected Text Not Showing For Dropdownlist Control (Windows App)?
May 6, 2010I have a autocomplete dropdownlist(ddl) in my app. When ever I click on the ddl and start typing to find the item I am looking for in the ddl. The ddl is expanded to show all the orders when typing. After I press the enter key to go out and get the order information for that order the Order number in the ddl is missing but here is the weird part. When I don't have the ddl expanded but still have focus on the ddl. When I find the order I need and press enter. The order number is showing in the ddl as the selected one after it has loaded up the order information.
View 6 RepliesBrowser Compatible Code To Disable A Dropdownlist When Another Dropdownlist Is Clicked Or A Checkbox Is Checked?
May 26, 2011I have a window having 2 dropdowmlists(schemename-SN and propertyno-PN) , one chkbox ,one "VIEW" button.SN has options "all" with value=0 and many other options with respctive values.Now,i want the code should behaves as follows:
1.0n window onload, SN must b visible bt PN nt.
2.if i select SN other thn All...the PN shud b visible and if i select "All" ,PN hides.
3.when check box is checked- PN hides,and if it is unchecked- PN visible..
Important:-This whole ddl n chk box are in updatable panel,button is nt in that.I want a browser compatible code so javascript can't b used directly(cz they give problem in mozzila and chrome).Right now, i have done this JavaScript and its is working fine.
function window.onload()
{
DisableProperty();
}
[code]....
but this code is not browser compatible.here onload,onkeyup and onclick functions are used , but they dont work in other browsers except internet explorer.
Following Error Msg From Vs2008 When Try To Bind Dropdownlist Control To Select Query With Parameter
Nov 8, 2010i am trying to bind a dropDownList control to a select query that has a parameter.the query itself runs fine on sqlserver database when the paramter is replaced with an actual datetime variable.the basic query is: SELECT DISTINCT DeliveryZone FROM dbo.tblComplaints WHERE (DeliveryZone IS NOT NULL)AND (DeliveryZone NOT IN ('**', '??', 'EE', 'T', 'M'))[code]
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