Forms Data Controls :: Select Parameter For Formview Control?
May 14, 2010
I am doing a library application. I am using a formview control to display and edit the details of an existing borrower.
What I wish to do is to allow the user to enter the borrower barcode into a textbox and select the details of the borrower corresponding to the barcode.
At present I have kept the textbox and a button outside the formview. Once the user enters the barcode in the texbox and clicks the button, the data is displayed in the formview control.
Now, my doubt is that is there a way to keep the textbox inside the formview control itself and use the value(Which should be user input) for selecting the details?
I have a Formview ('formview1') with a pager. I also have a gridview ('gridview1') linked to a SQL datasource ('History'). I need to set the SelectParameter ('Serial') of the datasource to be the value of a field on the current page in the formview. The value i need to get is in the ItemTemplate and is a label called 'SerialNumberLabel'. So, something like:
<SelectParameters> <asp:ControlParameter Text = "Eval fromview1.currentpage.itemtemplate.SerialNumberLabel" >
I also need to ensure that the SQL source and gridview rebind when the pager is activated.
I have a formview bound to a sqldatasource control. I want to set one of the insert parameters when I click on one of several buttons (outside the formview).
I want to set the "benType" depending on which button I've pressed (I don't want/need it to be visible in the InsertTemplate). I tried adding this line to the codebehind for the button click:
I have been trying for a while to populate a formview when I select an item from the dropdownlist. The dropdownlist is outside of the formview. For some reason, when I select a different item it does not change in the formview. Only the first item of the list shows up. I don't know where I'm doing wrong. I tried many things and suggested informatioin and I still could not get it to work. When I do try to switch I get this error message:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
I have a GridView and a FormView on the same page. They both have separate DataSources. This is a simple Master Details configuration, when a someone clicks on the Select link in the GridView, the FormView brings up the Details data. But for some reason the FormView's DataSource is trying to retrieve data when I load the page. This is causing an error because no ID is passed from the GridView.
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.
i have the following scenario: one formview. when in editmode there is a child formview linked to the other by a column value. i need to take the value of one of the values of parent formview controls and set it to a textbox of child formview in insert mode. I wish to know which event should I use in codebehind to bind both controls? (that escenario will have paging and must keep the binding as if it was master detail)
I am using a form view control which has two binded textbox. Now at this level it works fine and the textboxes show the values from database. But when i insert a panel inside the form view and move these two textboxes inside the panel, they dont show any values. What could be the reason for this?
I am attempting to show/hide a control (txtInpatientType) when a user views individual records on a FormView (frmData) depending on the value stored in another control (txtPatientType). For example, if txtPatientType.Text = "Inpatient" then txtInpatientType.Visible needs to be True. Very simple code follows.
[Code]....
txtPatietType and txtInpatientType are both ReadOnly. txtInpatientType.Visible = false by default.
Moreover, if i want to show all in default, this method force to user to type something first. How to show all in default when using control parameter?
SelectCommand="SELECT [Serial_no], [Transaction_Date], [Card_no], [Company],[IsCredit], [Fee] FROM [CarPark] WHERE ([Card_no] = @Search) or ([Company] = @Search)" UpdateCommand="UPDATE [CarPark] SET Card_no=@Card_no, Company=@Company, IsCredit=@IsCredit, Fee=@Fee........
I have a formview with an insert item template. I have added two dropdown controls that are databound to two different database tables to this insert template. However, when I click the 'InsertQuery' for the Accessdatasource neither of these controls are available as 'Parameter source options'.Out of interest, if I take these dropdown controls out of the formview and put them on the page they then become available to use.
I have a calendar control where a user selects a date and then inputs info into a FormView control. Underneath the FormView is a GridView that shows all data from the SelectedDate on the calendar control. However, when the date is selected, all the information from the table ( from all dates ) is displayed.
I'm trying to display all orders placed and I have a primary accessdatasource control that has a select query to get the customer information and the orderID. I want to use the orderID value from this first query as a parameter for the secondary accessdatasource control that selects the product information of the products in the order. In plain english, I want to:- select product info from product table where orderID = ?(where ? is the orderID value from the first query)
I have tried the <%#Eval("OrderID")%> but I get a "server tag not well formed" error, but I do get results returned when I just type the order ID in, but obviously every result (order) just contains the same product info...
I use a GridView control to select the row to display within the FormView. The FormView contains a RadioButtonList to facilitate the selection of one of its values. My C# codebehind contains a "selected_index changed event to grab the values from any of the modified FormView controls. My problem is that it is not picking up the selected radio button. Here's some code:
I have a dropdown in the InsertItemTemplate of a FormView that I need to add code to it's SelectedIndexChanged property, however I can't seem to find any way to do this.
For example, if the dropdown was not in the FormView I would simply use...
[Code]....
...but because it's inside the FormView I can't use the above.
Couple quick questions:What's the difference between FormView1_ItemUpdating and FormView1_OnUpdating? Do they occur at different times in the update process?Still can't get my code to upload the file...what am I missing?
Instead of usng FormView with SQLDataSource control, I like to use it with LINQ-to-SQL. For example, can I write my own LINQ to SQL for Edit and Update? Will FormView control work in this way?
