Forms Data Controls :: Load Values Into DropDown
Feb 1, 2011
I have two Dropdownlist on my webform(DDWO,DDLI) on Page_load I am retreiving WONumber values into DDWO when i select WONumber and click on Button corresponding values of selected WONumber will be loaded into DDLI but i dont want button here, instead when i select value in DDWO(WONumber) corresponding values of selected WOnumber should be loaded into DDLI.On which event i have to write insted of button to load values on select of DDWO value. Following code to retreive values to DDWO,DDLI
[Code]....
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Sep 29, 2010
I am designing my own Customize Calendar for my webproject.Using Calendar Control of asp.net2.0 I want to add three dropdowns at the top to collect Hour, Minutes and Seconds.What I required to load dropdown menus on runtime with values:
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Mar 11, 2010
I have Dropdown for Quotenumber(auto increment ).i have created a function to retreive the data from database.data loading into dropdown. when i click on Addquotenumer button the new quotenumber generated and same loading into dropdown but 2 set of Quotenumbers are displaying rather than singleset, i debudded the code the reason was i have called this function twice one is form load and another one in AddQuotenumber button event,both should manadetory as per my requirement. how can un load this dropdown before AddQuotenumber button
Function to retreive data to dropdown
Public Sub retriveDataToDropDown()
Try
Dim connectionString As String = "Database=fabdb;" & "Data Source=localhost;" & "User Id=root;Password=pacvision"
Dim query As String = "SELECT QuoteNumber FROM quotes"
Dim connection As New MySqlConnection(connectionString)
Dim da As New MySqlDataAdapter(query, connection)
Dim ds As New DataSet()
If da.Fill(ds) Then
DDQuote.DataSource = ds.Tables(0)
DDQuote.DataTextField = "QuoteNumber"
DDQuote.DataBind()
'DDQuote.Items.Insert(0, New ListItem("Select", "Default value"))
End If
connection.Close()
Catch ex As Exception
'Console.WriteLine(ex.Message)
End Try
End Sub
AddquoteNumber button code
Protected Sub btnAQ_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAQ.Click
Dim connectionString As String = "Database=fabdb;" & "Data Source=localhost;" & "User Id=root;Password=pacvision"
Dim rowsEffected As Integer = 0
Dim Query As String = ""
Dim connection As New MySqlConnection(connectionString)
'Dim cmd As New MySqlCommand(Query, connection)
connection.Open()
Query = "insert into Quotes(query follows...................)
retriveDataToDropDown()
retriveDataToDataGrid()
connection.Close()
End Sub
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Mar 2, 2010
How can i load the QuoteNumber database column values into dropdown list which is autogenerated column.I am able to generate the QuoteNumber value and same inserting into database simultaniously all the Quotenumber values should load into dropdown, these two should happen in one click button event.My QuoteNumber dropdown name is "DDQuote" Code for generating Quotenumer and same inserting into database.
Protected Sub btnAQ_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAQ.Click
Console.WriteLine(updateRecord("insert into quotes (PartNumber) values ('" + txtPart.Text + "')"))
retriveDataToDataGrid()
End Sub
Function updateRecord(ByVal query As String) As Integer
Try
Dim connectionString As String = "Database=fabdb;" & "Data Source=localhost;" & "User Id=root;Password=pacvision"
Dim rowsEffected As Integer = 0
Dim connection As New MySqlConnection(connectionString)
Dim cmd As New MySqlCommand(query, connection)
connection.Open()
rowsEffected = cmd.ExecuteNonQuery()
connection.Close()
Return rowsEffected
Catch ex As Exception
Console.WriteLine(ex.Message)
End Try
End Function
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Sep 27, 2010
For insertion, I have dropdown inside a form.
The dropdown is linked with sqldatasource which is retreiving distinct records from table.
In table there is no NULL value.
What I want to do that when user will access Insert page to insert record then like all textboxes, dropdown should also load with NULL value.
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May 18, 2010
i would like to know how to load the dropdown list in the Gridview edit with the dropdown list values from the database
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Mar 4, 2010
I required to load dropdown with the section name on the basis of UserProfile when the page load anytime.
The dropdown is bounded by sqldatasource configured to TblSections.
TblSections with datafields sectionId(numeric) and Description.
There is another table Users with field sectionId and UProfile.
There is a gridview grvResult bounded by objecdatasource configured to TblFltReg.
TblFltReg has field Owner(numeric).
Actually Owner and SectionId are same.
I don't know how to do this task.
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Jun 10, 2010
I am experimenting with 3 dropdowns bound to 3 different datasources. I want the contents in each dropdown depending on what is selected from the above dropdown and the datasource queries reflect this.
<asp:DropDownList ID="DropDownList_CostCentres" runat="server" Height="16px"
Width="138px" DataSourceID="CostCentreDataSource" DataTextField="CostCentre"
DataValueField="CostCentreID">
</asp:DropDownList>
<asp:SqlDataSource ID="CostCentreDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:corkABCConnectionString %>"
SelectCommand="SELECT [CostCentreID], [CostCentre] FROM [CostCentres]">
</asp:SqlDataSource>
<br />
<br />
<asp:Label ID="Label2" runat="server" Text="Manager:" Font-Bold="True"></asp:Label>
<br />
<asp:DropDownList ID="DropDownList_Managers" runat="server" Height="16px"
Width="138px" DataSourceID="ManagerDataSource" DataTextField="EmployeeName"
DataValueField="EmployeeID">
</asp:DropDownList>
<asp:SqlDataSource ID="ManagerDataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:corkABCConnectionString %>"
SelectCommand="SELECT [EmployeeID], [EmployeeName] FROM [Employees] WHERE ([CostCentre] = @CostCentre)">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList_CostCentres" Name="CostCentre"
PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
However, the second dropdown does not load with the relevant data when I select a value from the first dropdown (stays blank). Must I still provide an event handler and how do I combine this with the sqldatasource?
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Dec 6, 2010
i want my dropdown list or my list box, load data from my database .i use visual studio 2008 and sql server 2005.
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Oct 6, 2010
Ive been strugglng with this one problem for a while now. I have an application as: SelectCommand="SELECT [CategoryID], [Name], [UserId] FROM [Categories] WHERE ([UserId] = @UserId) ORDER BY [Name]">
<SelectParameters>
<asp:QueryStringParameter Name="CategoryID" QueryStringField="ID" />
</SelectParameters> [code]....
the dropdown list control will populate values from the database but when i live those 2, it won't populate any value from the database. When i remove only the
<asp:QueryStringParameter Name="CategoryID" QueryStringField="ID" />
</SelectParameters>
and live ([UserId] = @UserId), i get the error : Must declare the scalar variable "@UserId".
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Jan 25, 2011
I have created a dynamic dropdownlist. I need to get the selected values from the dynamic list and store it my sql database.
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Feb 23, 2011
I'm populating a dropdown box bound to an sqldatasource. From the sqldatasource, I'm retrieving locationID,locationType and LocationName.
The locationName is displayed in the dropdown. The selected values is set to, "locationID'. Based on the 'LocationID' the user is directed to a new page.
However, I need to pass the "locationID" and also the "LocationTYpe" values for the selected Name, so the sure can be directed to a specific page..how do I get BOTH values, 'locationID' and 'LocationType' when the user selects 'Location NAme' from drop down.
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Oct 5, 2010
when testing my query in the grid configuration wizard it works fine, but when i run the page it does not.
first - i select values from my cascading drop down list then enter values for two textbox (dates). then when i hit the button to populate my grid nothing is return back.
[Code]....
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Jun 12, 2010
I'm using objectDataSource and Formview. Currently I'm using a Text-Box to put the CategoryID.
I want to display the Category-Name instead of Category ID in Drop Down list.
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Jan 18, 2011
in my proj i have a grid view which consists of name and droppown list as shown below:
<asp:GridView ID="gvJobs" runat="server" AllowPaging="true" AllowSorting="true" AutoGenerateColumns="False" OnRowDataBound="gvJob_RowDataBound" OnRowCommand="gvJobs_RowCommand" >
<Columns>
<asp:TemplateField HeaderText="Jobs" SortExpression="name" HeaderStyle-HorizontalAlign="Left">
[Code]....
when i click the dropdown list it is postbacking(since i made auto postback=true). on that time i am unable to get the selected value from dropdown list.
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Apr 1, 2010
In my asp.net page i have one dropdown and its vales are loading from db.
new values for the dropdown we can add using a popup also for the popup i am using this code
[Code]....
once the data is added then i am refreshing the parent page using javascript and reloading the dropdown using the below code . and values are from db.
[Code]....
here in AllUSersByRole i am getting the newly added value from the db after that i am binding the value to dropdown and the new added value is not showing all the other values are present.
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Jul 16, 2010
i have 4 text boxes and 2 dropdowns are there when ever i fill it all values should place in grid view., after entering of 5 or 6 records, i click on SAVE button then ,i want to save those values in to Data Base ,which are at Grid view.....
Example:
[code]...
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Apr 16, 2010
Is it possible to display two column values from a SQL database in to one DDL? I have been trying to write a SQL query, where in I select two fields to be displayed in the DDL but when I run the application it only displays one. Not sure why. Here is my code below:
<asp:DropDownList ID="DropDownList8" runat="server"
DataTextField="LATA"
DataValueField="LATA"
onselectedindexchanged="DropDownList8_SelectedIndexChanged"
DataSourceID="SqlDataSource1">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:Inventory_DBConnectionString %>"
SelectCommand="SELECT DISTINCT [LATA], [LATA Name] AS LATA_Name FROM [CA] WHERE ([SWITCH ID] = @SWITCH_ID)">
<SelectParameters>
<asp:QueryStringParameter Name="SWITCH_ID" QueryStringField="ddl1"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>
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Oct 4, 2010
In given code finally I want to populate unique values at runtime in 2 drop downlist.
protected void Page_Load(object sender, EventArgs e)
{
vidDocument.Load(Server.MapPath("~/CurrentStatus.xml"));
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ExpiresAbsolute = DateTime.Now.AddMonths(-1);
[Code]....
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Oct 29, 2010
I have a Detailsview grid with an SqlDatasource, this DVG is only going to be used to insert records. The primary purpose of the DS is to populate a DDL control in the insertItem Template that I created my code is this:
[Code]....
The DDL control populates correctly, but when I try to modify the INSERTCommand property in my DS, I try to assign the value to my parameters "TesterID" and "TesterDate" but the only options for controls to pick from, is the DGV but not the DDL in it. I assume it has to do with the InsertItem template but even if I reset it I still cannot pick the textbox as a control that would give the value to my parameters.
I did find a workaroun by build a public method and calling it in the onclick event of the insert button but looks like I have to create another connection to the database which to me seems unnecessary since I already have a DS and everything. how can I do this without having to use my method. here is my method just in case.
[Code]....
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Feb 10, 2010
I have a table that has 3 fields (Individual-Id, LastName, and FirstName). I want to create a drop down table that displays both the FirstName and the LastName (example: Smith, John). The field Individual-Id is the 'value' field.
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Apr 14, 2010
I've got a few labels in a datalist that are being populated based on the values of a queryString but without the query string the datalist is empty.
How can I access the labels in the datalist and set a default value to them on the load of the page?
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Jun 12, 2010
I Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?
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Jan 3, 2010
I am fairly new to ASP.Net and web programming in general and I am having issues trying to add values from a dropdown list in my gridview to another table.
Here is my scenario. I have 2 tables in my SQL Express DB. When editing the values of table2 in a gridview, I would like to show some data from table1 in a dropdown so users can select a value from table 1 and enter that value in table 2.
I have the Gridview setup to show table2 data.
I created a field template and inserted my dropdown list and linked it to my table1 data source.
When I run my web form, I can click to edit one of the fields in the gridview, and my dropdown list correctly displays the data from table 1, but when I try to update the table2 with the dropdown value, it doesn't correctly update. The row in table2 never updates.
posting the dropdown value from table 1 into the appropriate field in table2..
Again, I am new to this and have been following the tutorials etc on this site, but can't find one pertaining to this topic.
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Mar 9, 2011
I have a dropdown control that has a list of names in it called PlayerNameDropDownList_Insert and a textBox called PlayerName.
When I select a name from the dropdown it populates the textbox correctly.However, when the page opens the first name is selected in the dropdown but nothing in the textbox. How can I get the textbox to populate with the value of the dropdown at pageload?
[Code]....
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