Forms Data Controls :: How To Control The Dropdown Which Is Inside FormView EditItemTemplate
Jan 27, 2010
How to write code in vb.net to control the Dropdown which is inside FormView EditItemTemplate. FormView named "frmFaultsReg" DetailsView named "lstStatus" Actually what i want to do that there is a textbox inside FormView EditItemTemplate and ItemTemplate to insert Closing date. lstStatus has a value PENDING and CLOSED. If a user select CLOSED from lstStatus then the date textbox named "ClrDateTimeTextBox" should show current date time and to insert into database and if user again selects PENDING from lstStatus then the date textbox should show empty. I think the postback of lstStatus should work but lstStatus is inside the FormView thats why I am unable to hook it.
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Similar Messages:
Aug 16, 2010
Using Visual Web Developer Express 2010 with ASP.NET 4.0.
I have a FormView and I want to set a default value from the database. I can't get it to bind to the value in the database. My FormView looks like this:
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The EditItemTemplate does not even load when I click the edit button on my FormView control, but I don't get an error message either.
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Feb 7, 2011
I am using a dropdownlist inside Edit template of a formview,, the problem it is not saving the value ,, Here is my code : I am only updating the (status)
[Code]....
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May 8, 2010
I have a Formview which contains a radiobuttonlist control in the EditItem template. I want to access the radiobuttonlist control and change the selected item client side using javascript.I've tried various combinations of document.getElemetByID and getElementsByName etc. but with no luck.Does anyone know to get to a radiobuttonlist controls in a FormView Edititem template using javascript?
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Apr 28, 2010
I have a formview which binds to a table where one of the fields is an integer zip-code field. I want to pad the zip with a leading zero in the edit template when the zip is something like "02134". How do I edit the bound data without "breaking" the two-way binding?
I wrote simple function to add the zero and return a string:
Public
Function padZIP(ByVal zip
As
Integer)
As
String
Dim tmpStr
As
String =
CType(zip,
String)
If tmpStr.Length = 4
Then tmpStr =
"0" & tmpStr
Return tmpStr
End
Function
and I can call it in the itemtemplate fine:
<asp:Label
ID="ZipLabel"
runat="server"
Text='<%# padZIP(container.dataitem("Zip")) %>'
Width="30"
/>
but, trying to do that in the edititemtemplate breaks the binding?
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Jan 20, 2011
I have a boolean / bit value in the database called "is_paid". Depending on this value I want to Disable a button. (the same would go for example to set a textbox not Visible, but anyway)
What I want is to Disable the button, if my boolean is 1 (true).
First I tried to convert my boolean value to text:
<asp:Button
ID="btnCalculatePayment"
runat="server"
Text="Submit"
onclick="btnCalculatePayment_Click" Enabled='<%#
Convert.ToBoolean(Eval("is_paid")) ? "False" : "True" %>'
/>
But got an error:
CS0030: Cannot convert type 'string' to 'bool'
However, if I use it one a Label it works fine: <asp:Label
ID="lblIsPaid"
runat="server"
Text='<%#
Convert.ToBoolean(Eval("is_paid")) ? "True" : "False" %>'></asp:Label>
So another trial I did was to CAST the data from the database to be the text that I want, like so:
SELECT not_paid = CASE WHEN is_paid = 0 THEN 'True' WHEN is_paid = 1 THEN 'False' END ....
And my code changed to:
<asp:Button
ID="btnCalculatePayment"
runat="server"
Text="Submit"
onclick="btnCalculatePayment_Click" Enabled='<%#
Bind("not_paid") %>'
/>
But got this error:
System.InvalidCastException was unhandled by user code
Message=Specified cast is not valid.
Source=App_Web_absjd3ob
StackTrace:
at ASP.manager_aspx.__DataBinding__control74(Object sender, EventArgs e) in c:Documents and SettingsAdminMy DocumentsVisual Studio 2010ProjectsWebManager.aspx:line 219
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
So I wonder, is it possible to change the "Enabled" property based on by boolean value?
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Jun 15, 2010
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.
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Oct 20, 2010
I have a formview in which I have a dropdown list that displays a list of owners. In case the list does not have the correct owner for the user I have added functionality for them to add a new owner to the database table that populates the list. I did this by including a textbox and an Insert button in a panel. When the user clicks the new owner insert button I would like to re-databind the dropdown list so that they will see the owner they added and be able to select it.
When I add ddl_owners.databind to my button click code it gives me an error. "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I don't want to re-databind the entire formview because then it deletes all the information on the form that the user has already keyed in.
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Sep 3, 2010
I'm attempting to load DropDownLists from the C# codebehind as the FormView switches modes to Edit and displays the EditItemTemplate. I present the data in a FormView ItemTemplate using text boxes. When the user selects Edit, I have been attempting to load the EditItemTemplate dropdownlists by creating a dataset and binding it to the control, without success.
I've successfully loaded them in previous projects from within the .aspx code using <asp:ListItem> and within the C# code behind using Control.Items.Add(new ListItem), which are essentially the same thing of course . This project is different in that I want to get the data from a stored procedure on a MSSQL server.
In my latest attempt, I can see the data in the datasets. I'm getting "Error connecting to database.'eitRace' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value"
I include the code below. If someone could point me to an example I would be greatful. There has to be an elegant way of accomplishing this.
[code]....
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Feb 17, 2010
I want to dynamically populate data in Dropdown box in the Edititemtemplate of the Listview. The below code is showing error "Object reference not set to an instance of an object". The problem is in Findcontrol function. How to solve this.
[Code]....
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Apr 10, 2010
When i Updating my gridview and i modify the value of dropdown the update is all ok, but if i not modify the dropdown and leave the selected value after the update i see another value, the first of listitem of my dropdown.
This is my code:
Sub GrdUpdate(ByVal sendere As Object, ByVal e As GridViewUpdateEventArgs)
Dim ID_ricette, NomeRicetta As String
Dim NomePortata As DropDownList
Dim NomePortataSel As String
If Not e.NewValues(0) Is Nothing Then
ID_ricette = e.NewValues(0).ToString
NomeRicetta = e.NewValues(1).ToString..........
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Feb 26, 2010
I have a gridview and I do Add, Modify and Delete operations. I am comfortable adding and modifying any text or date value. Now, I have a dropdown list to be displayed. I need to add and modify. The contents in the dropdownlist is fixed. Below is the code. I know there is a problem in my
<EditItemTemplate>
<asp:TemplateField
HeaderText="Leave Type">
<EditItemTemplate>
<asp:DropDownList
[Code]....
What is that I need to have code for EditItemTemplate
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Apr 16, 2010
Basically as the title of this thread states, I have a FormView that has a GridView inside it and my ObjectDataSource that populates this grid cannot access the Grid.
The Control Id needs to be the name of the Grid I want to access, however through the 'wizard' the Control parameter drop down cannot 'see' the grid I need, only the FormView that is in.
I have tried numerous ways to get round this and am struggling now..
I've tried the following...
ControlID="FormView.GridView1"
ControlID="FormView.FindControl("GridView1")
ControlID="<%= GetNameOfGrid %>"
and numerous other attempts that also failed that I now cant remember...
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Aug 11, 2010
Using Visual Web Developer Express 2010 with ASP.NET 4.0.
I have a FormView and I want to set a default value from the database. I can't get it to bind to the value in the database. My FormView looks like this:
[code]....
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Nov 19, 2010
How to Show ItemTemplate iNside EditItemTemplate Of GridView
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Mar 9, 2011
OnSelectedIndexChanged event for the dropdown is the fired.
I have set the autopost back value = "true", EnableViewState ="true" for page tag and gridview tag.
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Mar 24, 2011
I have a gridview and it has two EditItemTemplates. I want to update the items inside the second dropdown (EditItemTemplate) when I select an item from the first dropdownlistbox (EditItemTemplate). I want to update dropdownlist2 when I select an item from dropdownlist1. How can I do this?
[Code]....
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Jul 22, 2010
string s = "" when I click on the DeleteImage1 button in the EditItemTemplate row.Cells[2].Text is an empty string in gridView_RowCommand (3 buttons inside an EditItemTemplate)
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Jan 16, 2010
I have the following (abbreviated) code:
<asp:FormView ID="FormView1" runat="server" DataKeyNames="ItemID" DataSourceID="LinqDataSource1">
<EditItemTemplate>
<asp:DropDownList ID="ddlCategory" runat="server" SelectedValue='<%# Eval("Category") %>'
DataSource="<%# GetCategories() %>" DataTextField="Text" DataValueField="Value" />
</EditItemTemplate>
<ItemTemplate>
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<InsertItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</InsertItemTemplate>
</asp:ListView>
<ItemTemplate>
</asp:FormView>
When the FormView is in Edit mode, ddlCategory is populated as expected by calling GetCategories(), which returns a List of categories. However, when the ListView is in Insert mode, ddlCountry is empty. I put a break point in GetCountries(), but it never gets called. If I change the name of the method, I get an error. So it recognizes the method at compile time, but does not call it at run time. I'm guessing this is an embedded binding issue of some kind, but I'm hoping someone can save me a lot of time by pointing out the solution.
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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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Feb 22, 2011
To insert a new product to table [Products] in DB i have a formview. The formview includes a DropDown list taken from foreign table called [Status]. The table [Status] includes fields ID and Status (Status values are: Inn, Out, Damaged).
When i choose from the DropDown i want the textvalues from Status to be displayed (so far im good) but then i want the [Status.ID] to be inserted in [Products.Status_ID] so the cell value will be 1, 2 or 3. This because [Products.Status_ID] is the foregin key to [Status.ID] so that i have the ability to sort products after Status value later.
But do i really need that foreign key? Do i just complicate it further by doing it this way? Perhaps Status could just be a regular string with no foreign key...?
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Feb 24, 2011
I have DataList control and I want to assign to it's edititemtemplate some User Control. The problem is I can't find when I should databound UserControl to data, as my UserControl doesn't have static look (it renders different depending on some property values and datasource).
I was try to simply set my user control in edititemtemplate
<EditItemTemplate>
<uc:MyUserControl id="myUserControl1" runat="server" />
</EditItemTemplate>
and then bind it to data in ItemDataBound event handler, but it remains empty
if(e.Item.ItemType == ListItemType.EditItem)
{
var p = (Pair)DataBinder.GetPropertyValue(e.Item.DataItem, "Key");
((AnnouncementUserControl) e.Item.FindControl("userControl1")).RepeaterDataSource =
_templateWorker.ReturnTemplateByAnnouncementId(Convert.ToInt32(p.First), true);
}
how can I databound my control, or another approach which will make me avoid this problem?
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Jun 29, 2010
I have a formview and within it I have a dropdown list which brings back a list of value from my database,
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Sep 29, 2010
I have a textbox in a formview as well as a dropdown. When I select a value in the dropdown, the textbox should be made visible or invisible based on the value I select.
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Jun 14, 2010
Hello all i have this little issue getting this to work, i have a dropdownlist in asp.net inside a formview and jquery cant find the control im guessing because its inside a form, this is what i got and it works on another page without a formviewi get this errorName 'Country' is not declared
[Code]....
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