Forms Data Controls :: Dropdownlist In Gridview Gives Parameter Error?
Jan 23, 2011
I have a gridview with some text-box columns and one dropdownlist-column (Templatefield).
With the dropdownlist i wan't to be able to edit a cell in a row. I have read a lot on the web and i have folowing code. I only get a parameter error now, before i added the dropdownlist everything was ok.
This is my html:
[Code]....
This is my update-command in the class "TransactiesDAO"
[Code]....
Look at the line:
[Code]....
in the aspx code. I don't now what to type in the "Bind(...)" text.
With above i get error: Message=DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'Subrubriek'. when trying to update the row.
When i delete the line "SelectedValue=" then i get folowing error:
It gives me folowing error:
ObjectDataSource
'ObjectDataSource1' could not find a non-generic method 'UpdateTransactie' that
has parameters: Rekening, Omschrijving1, Omschrijving2, Boekdatum, BedragBij,
BedragAf, Subrubriek, @ID_SR, ID
Singles and suppers are money fields for the price of same item. A bit like the price of a Small, Medium or Large item. What I would like to do is display the 'Singles' price and 'Suppers' price in seperate listitems so the user can choose 1 of them.
GridView: Traditional Name__________Size Chicken-------------------[DROPDOWNLIST]
DropDownList: Price of Single is: £1.50 Price of Supper is: £2.50
My page loads up with the correct items in TraditionalName colum but the DropDownList is completely empty. I'm aware I don't have anything in for DataValueField and DataTextField but I have tried putting things in these attributes, like Suppers and Singles, but nothing works, so I have taken them out below.
during edit mode i populate the drop down in question with data based on a value selected in another drop down also in the gridview, all works find, but the paramater is not being updated with the selected value, i think this is because i do not call any Bind in the aspx side.
I have 2 dropdownlist(ddlCategoryFooter and ddlItemCodeFooter)inside my gridview. I want to set ddlItemCodeFooter 's datasource to my getItemList(decimal categoryID) method. The selecteditem of ddlCategoryFooter will serve as the paramter which will be passed to my getItemList Method. Basically,ddlItemCodeFooter is dependent on ddlCategoryFooter's selectedItem.
I know it can be done in code behind approach but i prefer to place it in my asp page.
I have create a grid view with a dropdownlist for one of the columns. This works fine, but when I click edit and then update I get an error saying it cant update due to null value. I'm sure it because the parameter in the update of SqlDataSource1 is not referring to the value select in the edit item template, but I cant figure out how to do this.
I am facing a small issue in using a DropDownList that has only two values (AND and OR) which i want to use to configure a SQL Query in a SqlDataSource. How can i use this thing by passing the value in a SqlDataSource Select Query in such a way to Bind the Result to a GridView. I want something like this -
SELECT [somefields] FROM instinvoice WHERE Namen = @Namen @Option InvoiceNo = @invoiceno where @Namen is from a DropDownList and InvoiceNo is from a TextBox
I m having a problem in specifying this @Option parameter from a DropDownList which contains only two list items - AND and OR. On the Basis of the Selected Value from this DropDownList i want to execute query like
SELECT [somefields] FROM instinvoice WHERE Namen = @Namen AND InvoiceNo = @invoiceno
or
SELECT [somefields] FROM instinvoice WHERE Namen = @Namen OR InvoiceNo = @invoiceno
Using the Query with @Option gives me a Parsing Error. Why is that so. How can I implement this scenario.
I am trying to select a value, automatically, out of ddlCounsellorNameb by selecting a value in ddlCounsellorID. I've been getting a databinding error whenever the first dropdownlist posts back. How do I do about this without getting an error?
I've been struggling with trying to figure out how to do this for about 2 weeks now. I have a DetailsView with several template fields in it. The first field (Unit_Code) is a dropdownlist item where the user would select a Unit based off the Unit_Code's Unit Name. Further down I have a field named (System), system needs to get it's value from the selectedvalue or selectedindex that the user selected in the (Unit_Code) dropdownlist. I have another dropdownlist item (Component) that will need to get the selected value from System to sort on, so once I have the first Unit_Code to System figured out I should be able to figure out the System to Component part seeing as it will basically be doing the same thing.
i have two tables in my database, product(productid as pk) and productdetails(productid as fk), in a relationship.i have dropdownlist which on pageload displays data from my product table, showing all product name. AutoPostBack enabled. Its working fine.i have a gridview which should display the productdetails data when i select a value from my dropdown list.i have written the code for the gridview on the selected_index_change event of the drop down list, please correct me this is wrong;here is the code;
Protected Sub DropDownList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DropDownList1.SelectedIndexChanged Dim ConString As String [code]...
so when i select the value in the dropdownlist i get this error .Must declare the scalar variable "@ProductID".
I use SqlDataSource control to list out search result when user choose a date, but if the date is null, then it will list out all record. How to do the sql command? Â SELECT Ref_No as name, Job_Order_ID as value FROM Job_Order WHERE (Status <> 'JO_Completed') AND (Delivery_Date = @jaDate) OR (Status <> 'JO_Completed') ORDER BY Ref_NoÂ
For some reason the select parameter pAddId is getting set to null and get the following error when the content page is loaded If I hard code the value it works RA-01036: illegal variable name/number 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: Oracle.DataAccess.Client.OracleException: ORA-01036: illegal variable name/number
I am trying to pass a URL parameter to a web page that contains a Gridview to make that query dynamic
The URL is http://localhost:3036/people2.aspx?ArvDate=01/03/2011
I would like to add that parameter to the Select statement below (bolded)
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:sqlConnection %>" SelectCommand="SELECT NumPeople, Date1,Time1,Venue FROM People_Count WHERE Date1=XXXXXXXXXX and c
I already have this code to capture from the URL
Dim strPar As String strPar = Request.QueryString.Item("ArvDate") If strPar = "" Then strPar = DateTime.Now.ToString("d") [code]....
I just don't know the syntax to get it in that SQL Select statement
When a gridview is rendered, its RowCreated event is called. When it is called, what is contained in the second parameter which is of type System.Web.UI.WebControls.GridViewRowEventArgs ?Means, which type of information can we get from that ?
I have a cell where I will display an url with an xml as parameter. Currently this shops of the Gridview dispaly, the html table that is generated can not correctly be read by the browser.
Do I have to encode my string, the HTML encode mehtod? Or do some other action?
My issue is similar to [URL] how-to-use-the-value-of-a-selected-value-from-a-dropdownlist-populated-with-ajax but I am using ASP.NET, not PHP. I have a dropdownlist that is populated by another dropdownlist's current value through ajax. So if DDL A is 'NY', DDL B is populated with different data relating to 'NY'. I need that data to be posted back to the server because this affects an SQLDataSource parameter. However, as far as I can tell, the value is always null after postback resulting in the gridview to be empty.
In above SqlDataSource control, I had to pass the SelectParameter (whose value is coming from a ComboBox i.e., whatever comboBox value I selcect from ComboBox, its SelectedValue I had to pass it to the SqlDataSource SelectParameter. I am first time using "SqlDataSource". How to pass the SelectedValue of ComboBox into SlecteParameter of SqlDataSource control ?
I am defininging all my sqldatasource select parameters upfront in the .aspx file. Then based on user filter choices, I modify the Select Command to include those parameters. Works fine, but when I add one of these parameters, the bound grid doesn't pull back any results. No error message is given.
If I remove the ToteID control parameter line below, everything works fine. But with it in, the SQLDataSource.Selecting event doesn't even fire.
