Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control. error when I place a drop down list into my instert item template of my listview, but I have the exact same control in my edit view and it works fine, any reason I am getting this error? I know what it means but why would it work in the edit mode, and not the insert mode?
View 2 Replies
I would like to know if I can do the following: when I am in insert mode, can I dynamically change the select command of and then display that result in the second dropdownlist based on what was selected in the first dropdownlist.
I would like to include the minimum code to demonstrate what I am trying to do.
[Code]....
[Code]....
I'm using the EntityDataSource with a ListView control. In the ListView.ItemInserted event, I want to get the ID of the newly inserted record. Is there a way to do that?
View 5 RepliesWhat I'm trying to do is: I have a listview control on my page and in my code behind, I created an SQLDataSource object which I defined its Select, Delete, Update and Insert Command strings. I then binded that datasource to my listview. When I load the page, it's obvious the select command works. however, when I perform the insert, the ItemInserted event triggers, but the itemInserted doesn't trigger and there is nothing inserted in my database.I'm not sure what to do here. I also hard coded the insert values in my insert command. So it's not depending on the form values.
View 3 RepliesHow would I go about showing the insert row in a ListView? Intially, when I went to configure the ListView, the Enable Update, Delete and Insert checkboxes were all greyed out. I changed a bit of the template code and couldn't access this screen anymore but that's not really a big issue.The Edit and Insert templates are present in my source. To get editing working, I simply adding an asp:Button to each row with the CommandName 'Edit'. However I'm a bit confused as to how I can get the insert row to show. Do I have to create a new button there with the 'Insert' CommandName? If so, where should I put it? Is there another way of doing this?
View 4 Repliesway to change a ListView into Insert Mode when linkbutton is not part of the ListView? Basically I have a button at the top of my page and when the user clicks the button I'd like to put the ListView into Insert Mode. I'm assuming that it's not working currently because the button is NOT part of the listview Layout Template.
<asp:LinkButton ID="lnkMachines" Text="Create New Machines" CommandName="Insert" runat="server" onclick="lnkMachines_Click" />
[code]...
I have a ListView Which displays Customer, product, price, Quantity and comments from database.The User can either edit it or Insert new items. In Edit Item template and Insert item template, i need to add a image button next to the textbox, which when clicked, will display a pop up window with list of customers or products.I have been doing it with the normal aspx page with textboxes. I use click handler to pop up the windows.i'm not able to do with listview Please help to give a solution to it.How else can i add an image icon and click it and get the values back to the textboxes?i will post what i'm doing without listview first and then the part of the relavant code of Listview.
View 2 RepliesI have a listview that I am trying to initiate the connection string in codebehind. When I do it, I get the following error:The ConnectionString property has not been intialized.I know that I am successfully creating the connection string in codebehind because all other controls populate correctly from the dsame database.I do not get an error if I initiate the connection string in the html code.
View 6 RepliesI have this code:
aspx
[Code]....
aspx.cs
[Code]....
Why can I not view anything in my dropdown list? It is totally blank
How can I populate a dropdownlist in an InsertItemTemplate in a ListView when it depends on another dropdownlist i.e. First DropDownList has a list of continents, once this one is selected DropDownList2 should be populated with the countries of the selected continent. Mind, of course both DropDownLists are inside the same InsertItemTemplate.
View 12 Repliesi have a listview linked to sqlDataSource1 and inside the listview in the itemtemplate i have a dropdownlist linked to another sqlDataSource2. in my item template I also have a button, I want to get the value that has been selected in the dropdownlist, click a button and launch a sql insert statement to insert data from the listview row and dropdowlist.selected value in another table.
how can I get data from the Dropdownlist, pass it to the "function()" in onItemCommand="function()" of my ListView instance, in order to achieve what I said before?.
I'm using a listview control to do a survey stuff. Everything is working perfect to present the data questions, to be answered text with the different type of controls radiobuttonlists, checkboxlists, dropdownlists, etc. The admin can modify, create, change questions, answers, etc. on the survey.When it's select, edit, or insert it's easy to find the control inside a listview.However, I'm wondering how to post user's answers back to DB. How to find controls inside the listview to grab the entered data/responses from there using let's say the submit button that is outside of the listview.I believe there should be a way to do it as otherwise why we put radiobuttonlist on a listview that somebody could click it and then we should be able to get that entries. Or I'm too optimistic on this control?
View 2 RepliesIn my edit template I want a dropdownlist containing a list of possible customers. The list is populated from a database table containing existing customers. If the main record has customer "XYZ", then I want that customer to be the default in the dropdown. I'm using VS 2008 and C# My markup for the dropdownlist is currently:
[Code]....
The dropdownlist is populated but the problem is it shows the first customer in the list. I don't want the user to have to rechoose customer if that is not what they are changing.
I have the following ListView (extra code removed for clarity) :
<asp:ListView ID="lvParticipants" runat="server" DataSource='<%# Eval("Participants") %>' >
<EditItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownList ID="ddlCountry" runat="server" SelectedValue='<%# Eval("Country") %>'
DataSource="<%# GetCountries() %>" DataTextField="Text" DataValueField="Value" />
</InsertItemTemplate>
</asp:ListView>
The Insert row in the ListView has an empty DropDownList and GetCountries() is not called. However, if I click the Edit button on an existing row, GetCountries() is called twice (not sure why) and the DropDownList is properly populated. Why isn't the InsertItemTemplate DropDownList getting populated?
on SelectedIndexChanged event handling of DropDownList in ItemTemplate of ListView. I put OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" in mark up, with code behind, but only to get Compiler Error Message: BC30456: 'DropDownList1_SelectedIndexChanged' is not a member of 'ASP.webform1_aspx'. How do I make it a member? When I do not put OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" in mark up, BC30456 does not pop up, but nothing happens when dropdownlist selected item is changed.
[Code]....
I have a dropdown list in ListView control in InsertItem Template. I want to bind the DropDownList when I Click on Link. I want to bind it in CodeBehind not to use Datasource. I tryed lot but not finding the DropDownList. See My Code....
<InsertItemTemplate>
<tr>
<td colspan="7">
</td>
</tr>
<tr>
<td colspan="7">
<table border="0">
<tr>
<td> </td>
<td>
Sector</td>
<td>:</td>
<td align="left">
<asp:DropDownList ID="DropDnSector" runat="server" ></asp:DropDownList>
<asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" Display="Dynamic"
ControlToValidate="DropDnSector" SetFocusOnError="true"
ValidationGroup="vgUpdate">*
</asp:RequiredFieldValidator>
</td>
</tr>
</table>
</td>
</tr>
</InsertItemTemplate>
lnkNew is my linkbutton outside the ListView
Code Behind:
Protected Sub lnkNew_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkNew.Click
Try
lvSubscription.InsertItemPosition = InsertItemPosition.LastItem
lvSubscription.EditIndex = -1
BindDropDownList()
fn_ShowSubscriptionLevel(fn_BindSubscriptionLevelEvents)
Catch ex As Exception
fn_ShowMessage(ex)
End Try
End Sub
------------------------------------------------------------------------------------------------------------------
Protected Sub BindDropDownList()
Try
Dim objSector As IEnumerable(Of SystemBuilder.SystemBuilder_Sector)
Dim objSubscriptionLevel As SystemBuilder.SystemBuilder_SubscriptionLevel
Dim DDLSectorctrl As DropDownList
objSector = CSectorDB.CSectorInstance().GetAllSector()
If (lvSubscription.InsertItemPosition = InsertItemPosition.FirstItem Or lvSubscription.InsertItemPosition = InsertItemPosition.LastItem) Then
DDLSectorctrl = CType(lvSubscription.InsertItem.FindControl("DropDnSector"), DropDownList)
If DDLSectorctrl IsNot Nothing Then
DDLSectorctrl.Items.Add(New ListItem("--Select--", "0"))
For Each ObjRec As SystemBuilder.SystemBuilder_Sector In objSector
DDLSectorctrl.Items.Add(New ListItem(ObjRec.SectorText.ToString(), ObjRec.SectorID.ToString()))
Next
End If
ElseIf (lvSubscription.EditIndex >= 0) Then
Dim DDLSectorctrl1 As DropDownList
DDLSectorctrl1 = DirectCast(lvSubscription.Items(lvSubscription.EditIndex).FindControl("DropDnSector"), DropDownList)
If DDLSectorctrl1 IsNot Nothing Then
DDLSectorctrl1.Items.Add(New ListItem("--Select--", "0"))
For Each ObjRec As SystemBuilder.SystemBuilder_Sector In objSector
DDLSectorctrl1.Items.Add(New ListItem(ObjRec.SectorText.ToString(), ObjRec.SectorID.ToString()))
Next
objSubscriptionLevel = CSubscriptionLevelsDB.CSubLvlInstance().GetSubscriptionLevelDetailsBySubscrptionID(ViewState("ID"))
If objSubscriptionLevel IsNot Nothing Then
DDLSectorctrl1.SelectedValue = objSubscriptionLevel.SubscriptionID.ToString()
End If
End If
End If
Catch ex As Exception
End Try
End Sub
I have a listview with following structure :
column1 column2 column3
row1 dropdownlist1 dropdownlist3 dropdownlist5
dropdownlist2 dropdownlist4 dropdownlist6
row2 dropdownlist7 dropdownlist9 dropdownlist11
dropdownlist8 dropdownlist10 dropdownlist12
Now, what i want is that , when a user select something from any dropdownlist , a fuction should be called in which I can get column and row of that dropdownlist.
I can get the dropdownlist's id in that function along with row and column of dropdownlist.
I need to bind drop down list inside InsertItemTemplate in ListView.
[Code]....
but method GetData() never calls. How can I bind DropdownList ?
How to make a sort (asc / desc) in my ListView through a dropdownlist?
View 2 RepliesI have a ListView that I need to populate a dropdownlist while rendering. For each rown in my table has a field called sizes which has data that looks like this "blue; red; yellow; green", I need to render a dropdownlist in the ItemTemplate with these values, I tried placing a PlaceHolder but I don't know how to populate it. I have tried to populate it OnItemDataBound and OnUnload but neither seem to work.
View 1 RepliesIt should be simple, but I didn't found yet how to do it. There is only one user (Admin with user name and passowrd, he has a cookie so I know when he is watching the page) I would like to show him the Update/Delete/Insert button options in my ListView, but to the other users I don't want them to be able doing this kind of things, So it should be hidden from them. How I am doing it in C# code? Showing/Hiding these buttons?
View 3 RepliesIn my project I have a listview which I am binding from code behind. Now I would like to add a droppdownlist for each item in listview. So my question would be:
Is there a way to populate my dropdownlist whit data which I have in a List?
Here is a bit of code to show how my listview looks like:
[Code]....
I am trying to pass the value of a dropdownlist to the Update section of a listview. The dropdownlist is bound to one datasource which needs to then pass its selected value to the UpdateCommand sql for another datasource. Here is my code:
[code]....
I'm trying to do a relatively simple thing, but just cannot get it to work. I'm trying to find a dropdownlist within a ListView ItemTemplate within Page_Load.
This is the code
[Code]....
And this is the C#
[Code]....
I have also tried without this > this.ListView1
So I am using EW + Access database to create a page.
This page contains two controls. First control is Dropdownlist which databinds with second control Listview.
This listview has paging on becuse of multiple pages. If I don't use QueryStringField paging works but if I use QueryStringField paging doesn't work and it goes back to first option of Dropdownlist.
