I am using asp.net 3-tier architecture, language c# for creating a web application. In presentation layer, I want to populate a textbox when I select an option from a drop down list. Under the code sample from .aspx page is given:
<asp:TableRow ID="TableRow4" runat="server">
<asp:TableCell ID="TableCell5" runat="server">
<asp:Label ID="lblCat" runat="server" Text="Product "></asp:Label>
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This is my first post as a newbie to asp.net.
I am in the process of creating a "news system", you can add, edit and delete news. The news items can be entered into the SQL database and you select a category where you want the news item to go into.
What I want is when someone comes to the "Edit" screen, they have a drop down list and what that does is allows you to select a category for you to edit news items from, so rather than at present having the "Edit" page display all the news items, I want people to be able to choose a category that they can edit news items in.
So far my edit page has a datagrid with the following code:
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I have written a code that populates data from database into the tree using C# and is working perfectly , the thing is how can i populate the tree based on a selection from a drop down menu
the code to populate the tree is below :
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I have a dynamically generated dropdownlist, that lists e.g. Company Names. I want to be able to select a particular Company and display associated information e.g. Name, Address, City, State... etc. in text boxes adjacent to the list.
I am trying to fire the following code from the dropdownlist "OnSelectedIndexChanged" property, but cannot 1) get the code to fire upon selection, and 2) populate the text boxes...
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Cannot populate the textbox with selection from dropdownlist
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I would like the user to select an item from a drop down list. Next to the drop down is a textbox or label control. From the ddl selection I would like to populate the textbox or label from a database with a corresponding field from the database the dropdownlist was populated from. On selectindexchange event I can populate the textbox with the Unique id from the value, but I need to input a different field into the textbox. Can I use some sort of variable to assign the Textbox.Text = ?
View 6 RepliesI would like to alter the query that is run, depending on the selection made by the user in a drop down list on the same page. Would this best be done using a partial page update (AJAX)? Ideally it would be great to have the textbox result change quickly once the drop-down list value has changed, without a full page postback. I would like to change the SQL query to a completely different query if the user selects an option different to the default (page_load value) in the drop-down list. I would then like the newly retrieved result to be displayed in the textbox as before.
My current VB function looks like this:
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I have a DDL and ASP.NET Textbox. I would like to populate the text box with the option I choose from the DDL. I need this to be instant and not use postbacks so it would seem JavaScript would be the obvious choice here. I have done quite a bit of searching but everything I have found seems to be for standard HTML (Selects and Inputs) and these do not appear to work with ASP objects:
<asp:DropDownList runat="server" ID="DDLSalesPerson" DataValueField="keyid" DataTextField="FullName" />
<asp:TextBox runat="server" id="txtSalesPerson" />
My DDL is populated from SQL in the code-behind page.
I have a drop-down list that is wired up to a datasource from one table to retrieve a Vendor ID and Vendor Name. This ddl is outside a FormView that is wired up to a datasource containing Vendor contracts.
When I choose a Vendor from the ddl, I am able to populate a textbox outside of FormView with the Vendor ID from the ddl. However, what I need to do is populate a textbox within FormView with the Vendor ID. FormView is in Insert Mode by default since my page will be used for Adding Contracts only.
I have two dropdown linked with sqldatasources.When I select item in ddl1 then on the basis of selection ddl2 is being loaded.Is there any possiblity that if I select ddl2 then ddl1 will also load on the basis of selection?
View 3 RepliesI have a dropdown menu with too many items bounded by sqldatasource.
I want to show only those records which matches the Session("UserName) so that if user login to the webpage he may be able to see only those records that are related to him and further if he selects it then data should populate to gridview.
I need to populate a listbox, however, the value on the second box needs to derive from the first one, such as when I click on North America, USA and Canada would show up. the tricky part is that I need to be able to select North America and Europe in the same time and 2nd list box needs to show USA, Canada, UK, Italy, German accordingly.
A1: North America
A2: Europe
A3: Asia
B1: USA
B2: Canada
C1: UK
C2: Italy
C3: German
D1: China
D2: India
I have a drop down list that has the initials of about 12 of our sales guys.How can I make it so that when they select their initials from the list, the next drop down list only shows their customers.In my database there is a column for customer name and salesman.
View 6 RepliesAm creating a user control for multiple selection drop down( i e dropdown with checkbox list) as shown. It works fine if i have only one instance of the control in a page. But it fails for more than one. I guess its java script client id issue. but i checked even that but unable to found :-
This is my .ASCX file.
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multiple selection drop down list for asp .net[ vs-2008] and its works in content page. most of the examples are not working in content page... i wanna implement in content page of master page.
View 10 Repliescreate multiselection Dropdownlist in asp.net 2.0 (I don't want use ajax or any other control) i need pure asp.net 2.0 program and c#.netValues are populated in DDL from Shared file location not from data base.After selecting the value in DDL (i e more than one value) based on the search condition it should display the value
View 1 Replies1) 1 dropdownlist - department
2)Search button
3) 1 listbox that will display all the staff according to the selection of its department
So when i select the department and click search button, the listbox will be populated with the staff names.
I need getting a drop down list selection to populate a calendar. The user selects a vehicle from the dropdownlist and based on that selection, the calendar needs to populate a link with drivers names on whatever days the vehicle is rented out for.
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Populate list box accroding to selection of dropdownlsit
i have a dropdown list
<asp:DropDownList ID="DDName" runat="server" AutoPostBack="True"
DataSourceID="sdsName" DataTextField="Name" DataValueField="name_ID"
Width="179px">
</asp:DropDownList>
the problem that it is not causing post back on the first selection but on the second, I mean if i select from drop down list first selection no post back on the server,but when i select another item from the list (the second click on a different list item )
I have a Data table object that is populated with a sql call. The table has two columns in int. "CustId" and CustomerName"
using C# in the code behind, how can I populate my drop down list box in C# using the DataTable object?
My code looks something like this, but it does not work.
DataTable MyTable=PopulateTable(); // method call
customerDropDownListBox.DataSource=MyTable;
i want to update data in my table..for which i want to select drop down list value automatically when i click on Select button in my griedview.my drop down list contains City names and that data is shown in griedview, so when i am clicking on select button on particular row in griedview i want to make that city selected in drop down list..my Dropdown list id is "drpCity" and griedview ID is "GrdCity"
View 4 RepliesI am going to add a computed column to a stored procedure that will combine the last and first names of all of the customers in my db. This will be used to populate a drop down list that will allow the user to select a customer so a new record can be entered for that customer.
I was planning on creating this computed column on the procedure that returns all of the customers and all of there information. My db is small so this shouldn't be a big deal, as far as overhead. This doesn't seem like the best approach if the app was using a much larger db. It would unnecessarily return a lot of extra data and make it slower.
I'm curios when a procedure that's dedicated to returning just the customer's first name, last name, and ID should be used, instead of one that returns everything. There are a number of variables that could make this hard to determine, such as number of rows and columns. I wanted to try to get an idea of a cut off point or rule of thumb on this, if possible.
I am trying to populate a drop down of gender inside gridview but on edit i never update the value any idea wht i am doing wrong?
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I tried adding a ddl into my grid header, it was origiinally out side and worked when i put it in the header it no longer worked, i am guesssing i have to do something other than cut past
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