Forms Data Controls :: FormView Data Source Calling Select Function On Page Load
Mar 24, 2010
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.
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Jun 15, 2010
I have extended GridView in order to have consistent look & feel, paging and sorting. However, when the page is first time loaded, the select method is getting called twice. It works fine when i move between pages in pagination.
Note, i am using Asp.net 2.0.
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Feb 8, 2011
I need to Check a formview for records on page load and if empty, I need to set it to edit mode.
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Apr 13, 2010
I a formview object. I have created an edit temple and an empty template Whehn there is data in the table nor probem When my table is empty i got the empty template to display when I click insert I get the error " Form must be in insert mode" How can I tell if there is no data on the page load so I can maybe do this:
formview.f1.defaultmode = fornviewmode.insert
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Dec 15, 2010
I have 2 gridviews. How to select automatically the first row of my gridview and based on that selection i have to display the first row values of second gridview in pageload
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Jun 15, 2010
I'm exploring ASP.net. I have created a FormView based on Linq Data Sources. There are several fields in my datasource that are either future or archaic.
1) Do all fields in the DataSource need to have a control in the FormView?
2) Does ASP.net need to insert/update all fields in the DataSource?
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Nov 16, 2010
I have a listview to display items from database and I need to automatically select the first item when the page first loaded, how can I do it?My listview is in one of the steps of a wizard control, and this wizard control is inside a popcontrol extender with updatepanel.
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Aug 15, 2010
Below is my Classe structure to do linq query .I have a List View and I want to use "Get_PostsByType" funtion as it's datasource. So I use
Dim DataSet1 As New Reports.PostListModel
ListView1.Datasource=DataSet1.Get_PostsByType("SampleName")
ListView1.Databind()
but it's not working. and I encounter this Error
Unable to cast object of type 'System.Data.Objects.ObjectQuery`1[Reports.PostListModel]' to type 'System.Linq.IQueryable`1[Reports.PostListModel]'.
Note: I dn't want to use Object Datasource Since I need to customize Funtion input parameter
[Code]....
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Aug 18, 2010
I've set up a formview with a Linqdata source to allow users to edit records. When I run it, edit data and submit, it blows up and tells me "Linq datasource6 does not support the Select property when the Delete, Insert or Update operations are enabled." I googled that warning and saw a couple of posts on this forum saying the problem is the slect statement has to be removed from the Linq data source for it to allow updates.
But if I remove the select statement then how do I show the user specific info on pageload? plus I thought the two way databind was an advantge of the datasource control.
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Feb 9, 2010
Protected
Sub CompanyGridView_SelectedIndexChanged(ByVal sender
As
Object,
ByVal e
As System.EventArgs)
Handles
[code]...
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Sep 19, 2010
I was searching for my problem for last couple of days. But coudn't find a better solution. So here I go again. What I did which worked great: I was going to a asp page with pre populated Dataset (dataset is already loaded with data), for a GridView. If I do the following .... the GridView shows all the data (with the fields Dataset comes with).
[Code]....
Now what I am trying to do: I am trying to do exact same thing but instead of using GridView, I would like to display data in a FormView. So now I tried to do this
[Code]....
PROBLEM: I can see the FormView Header with text "Test Dataset With FormView" and below the Header it displays the page numbers. I know that I have 3 data in the data set and I can see 3 page link in the FormView. But PROBLEM is it doesn't display any Field / Data. Not sure why it is doing this
Note that I wouldn't know what field to display in the FormView. Whatever I have in the Dataset I need to display. Is there any work around to accomlish my work (maybe by not using a FormView, but other conrol ?). My original goal is to Display Data in a Form View Format (One data at a time
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Feb 15, 2011
I have a dropdownlist that pulls from a datasource. When a name is selected all information drops down to a formview. Once there 3 fields get populated from the dropdownlist and then there is 2 other fields that need user input. Once they hit submit, it should write to a different table in the same DB. I cannot get the fields to populate and write to the DB. Here is my code:
[code]...
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Sep 20, 2010
I have a proplem i want to call the function at the time of binding data in datalist in source hlml.
so that i can bind the return type of the function after check the value what is the coming from the database.
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Feb 3, 2010
Can I call a javascript function from a hyperlink field in gridview?I dont want to navigate to a different page,instead i need to call the javascript on clicking the hyperlink.
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Feb 2, 2010
I need to call a javascript funtion, on the click event of buttons(asp button or html button) in my gridviw.Also I need to pass the ID from the gridview(datakey value) as a parameter to the javascript function.
ie ,All the rows in my gridview has a button field,on clicking each of the buttons ,a javascript function is to be fired ,and the ID of that particular row from gridview(datakey value) should be passed to the javascript as a parameter.
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Apr 15, 2010
I have a gridview being loaded via a Databind to a MembershipUserCollection
This works fine, but I need to add one more Column with data not found in the collection, so i added a TemplateField and a Label to my Gridview and in the TEXT prop of the label is where my problem is.
The function call is working, but my problem lies with providing the Datafield="UserName" value from the same row in GridView in the function call
This is my HTML for the GridView:
[Code]....
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Feb 4, 2010
Can I call a javascript function in the RowDatabound event of the Gridview?
I am currently enabling/disabling buttons in each of my gridview rows based on a status value from the database.I need to fire a javascript function (say alert('current status')) when the status is 0,else dont fire that function.Can I achieve this in the row databound event?
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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?
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Mar 3, 2011
I have a formview, selecting * from friends, where [date] = getdate()
The problem is the friends table date columns datatype is datetime, i cannot make it just date.
I only want to display data if the date is the actual date, i.e. between 00:00:01 and 23:59:59
How do i select only the date for both getdate and my date column?
SelectCommand="SELECT * FROM [friends] WHERE ([date] = getDate())">
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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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Nov 4, 2010
There is a page having formview with inserttemplate loading after user authentication. I have created user id = guest. If anyone login with guest i want to be load page FormView with EmptyDataTemplate.
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Sep 20, 2010
i have a grid view control
[Code]....
Here change_scheduleDate function is executing every time for every row but i need to execute this function only when value change in txtdate textbox or same case i need if i create textboxchange event at serverside here i am updating txtdate value in database when text box value changed
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Mar 12, 2010
i need to know if this can be done :
i have a grid form with 3 fields field1 & field2 & field3.
in the insert statement the field 3 gets a javascript function result that uses filed1 & 2 values.
Now what i want in the grid view update statement is : to call the @field 1 & @field2 from the update statement to a similar javascript function..(do soem calculation ) and then re-assign the java function result to the @field3 variable in the update statement..
(//// Or simply what i want is to do the same calcultions onthe fields while perfoming an update operation.. //).
how can i perfom the calculations in a grid view update statament ..
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Jun 12, 2010
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.
Source Error:
[Code]....
[Code]....
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Jan 29, 2011
I have no problem when paging my FormView, the dropdownlist does not read the next record and keep the value of the first loaded record? All other textbox control behave normally and move from record to record excepted the ddl??Here the code.
Public Sub DoData()
Dim myConn As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString)
Dim myCommand As SqlCommand = New SqlCommand("SelectSupplier", myConn)
myCommand.CommandText = "SelectSupplier"
[Code]....
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