Dropdownlist In Gridview's EmptyDataTemplate Is Not Populating?

Feb 1, 2010

<EmptyDataTemplate>
<asp:DropDownList ID="ddlRateCode" runat="server" DataSourceID="odsRateCode" DataTextField="RateCode"
DataValueField="RateCodeID" SelectedValue='<%# Bind("RateCodeID") %>'>
</asp:DropDownList>
</EmptyDataTemplate>

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Similar Messages:

Forms Data Controls :: Populating A Dropdownlist In A Gridview?

Dec 3, 2010

Here is a snippet of my code...

<ItemTemplate>
<asp:LinkButton
ID="lbEdit"
runat="server"
CommandName="Edit"
>Edit</asp:LinkButton>
<asp:LinkButton
ID="lbNew"
runat="server"
onclick="lbNew_Click"
CommandName="New">New</asp:LinkButton>
</ItemTemplate>

Code behind...

Protected Sub gvPunches_RowEditing(ByVal sender
As
Object,
ByVal e
As System.Web.UI.WebControls.GridViewEditEventArgs)
Handles gvPunches.RowEditing
Dim i
As
Integer = e.NewEditIndex()
Dim ddl
As DropDownList =
CType(gvPunches.Rows(i).FindControl("ddlDiv"), DropDownList)

the question I have is when i enter this procedure in the code behind, ddl is nothing. what am I doing wrong in populating the dropdown for the row I am editing?

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Data Controls :: Populating DropDownList In Edit ItemTemplate Of GridView?

Aug 29, 2013

I read your article on ASPSnippets and everything worked great.  I am having one problem and this is preventing me from moving forward.  When I select the edit for a row (I only have two columns), the drop down comes back blank (no records).  I have looked at the code multiple times and can't see where I made a mistake. is it possible to control the width of the drop down list?  I can't tell if the column automatically adjusts because I am not returning any records.

using System;
using System.Collections.Generic;
using System.Linq;

[Code].....

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Forms Data Controls :: Dropdownlist In Gridview Not Populating The Update Parameter?

Nov 5, 2010

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.

<asp:TemplateField HeaderText="Build Types">
<ItemTemplate>
<asp:Label ID="lblBuildTypes runat="server" Text='<%# Bind("BuildType") %>'></asp:Label>
</ItemTemplate>

[Code]....

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Sep 6, 2010

I need to create a TemplateField column dynamically , which will contain dropdowlist controls. I've been using this
example to create my first dynamic columns and for the last column, the one that contains dropdowlist controls, I've written this class:

[Code]....

But what I don't know is, where should I populate the dropdownlist control?

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Jan 15, 2011

I have a DropDownList in the InsertItemTemplate of the DetailsView in EmptyDataTemplate. I want to acces the value of the DropDownList control and insert its value in the empty DataBase.

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Sep 18, 2010

I am making an application that deals with vehicles. I need two DropDownLists:

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How is this done in MVC2? My Idea: Do I use an ajax call when my first list is selected and then pull back the Models to bind to the Model DDL? How would model binding come into play that way? UPDATE I posted what I ended up doing as an answer. It is super simple and works great. You can use a get too if you feel so inclined, but you have to specify that you want to like so... return Json(citiesList, JsonRequestBehavior.AllowGet);

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Jan 19, 2010

I have one table which contains branch codes(primary key), Branch name and bank name columns. I have 3 dropdownlist boxes. the first dropdownlist is for the branch codes. When i select the a branch code i need the second dropdownlist box to populate with the appropriate branch name and the third dropdownlist box to populate the bank name at the same time.

Is it possible to have one table like mine and acheive this, if so how do i go about doing this?

I did read up on this but only came across ones with 3 tables.

I am using Visual Basic to do this.

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EmptyDataTemplate And EmptyDataText Not Working In GridView

Jun 3, 2010

I can't seem to get either EmptyDataTemplate or EmptyDataText of a GridView to work. I'm fetching the GridView contents in de codebehind and attaching them with using DataBind(). I've tried having them as null and as an empty List, and in both cases the text I put into EmptyDataTemplate or EmptyDataText is not displayed. What am I doing wrong?

EDIT (Code snippet) This is my GridView:

<asp:GridView ID="grid" runat="server" EmptyDataText="EMPTY">
</asp:GridView>

And I've tried these two for binding the data:

grid.DataSource = new List<object>();
grid.DataBind();
grid.DataSource = null;
grid.DataBind();

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Web Forms :: Populating Dropdownlist Using C#?

Jan 19, 2010

I am getting a problem while working with the Dropdownlist in VS2008. I am trying to populate the DDL using c# codding instead of creating DataSource in GUI. The DDL is getting populated as expected, but then I've added a label that will show the current selected item; for this I've written a code in DropDownList1_SelectedIndexChanged() :

Label1.Text = DropDownList1.SelectedValue.ToString();

I hae also enable AutoPostback for the DDL.
I have placed the PopulateDDL() method inside of the Page_Load();
But whenever I select a item, it's always giving only the first item's name as the Lebel.Text.
But when I use GUI and ceate a SqlDataSource and attach that to the DDL all works fine.
What to do??

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MVC :: Populating Dropdownlist From Different Collection?

Mar 23, 2011

I'm new to MVC pattern and I have a question regarding to a dropdownlist. Actually My Data came from a collection (random string) then it displays it in a list. And yes it display, so I add a dropdownlist. And I can populate it using the same collection. My question is how can I populate the dropdownlist from different collection?

Here's my View

[Code]....

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C# - DropDownList Not Populating With Correct Value In MVC?

Feb 22, 2011

so I am having an issue getting a drop down list to choose the right value when it renders. It always defaults to index zero. However, I do have a view in another place where it renders just fine and selects the right value. I don't understand the difference.

Here is a trimmed down version of the view that works correctly:

@model AppName.Models.Guest
@using (Html.BeginForm())
{
Attending Ceremony?<br />
@Html.DropDownListFor(x => x.ConfirmCeremony, new SelectList(new Dictionary<string, string>
{
{"No Answer", "No Answer"},

[Code]....

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Forms Data Controls :: Using GridView's EmptyDataTemplate To Insert New Row?

Jul 6, 2010

There is user selected search criteria used to display both a FormView (Invoice header information such as ship_id, vendor, date, store, etc...) and cooresponding GridviewDetails (product details such as upc, description, unit cost, qty ordered, qty received, etc...) There is a one to many relationship between 1 invoice (formview) and many product details (gridview). I need to add the ability to insert product details to a particular invoice (ship_id is the link between the 2 tables) if an invoice currently doesn't have any. I have the emptydatatemplate programmed with dropdownlists and textboxes to capture the user entered information along with a submit button. However the insert doesn't occur.

I know the problem is how I am (incorrectly) using the findcontrol, but for the life of me I can't seem to find the correct syntax (been searching the forums for nearly a weeks implementing different syntax and testing to no avail!)

I have successfully implemented the ability to insert a new row using the footertemplate and was banking on some of that code to assist me with the insert of new details in the emptydatetemplate. Grrrrr....still not working. Below is the current version of the test page programming.

Code behind for the OnClick button in the emptydatatemplate "submit": (note: I know at least part of the problem is in how I am attempting to find the controls. Here is where I can not find a syntax that works and I have tried several dozen versions...)

[Code]....

GridviewDetails EmptyDataTemplate programming is below:

[Code]....

I've also included my entire GridViewDetails programming just in case it helps to read what it is that I am trying to do:

[Code]....

And here's the entire code behind that I have so far to make everything else function as desired:

[Code]....

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Web Forms :: Populating DropDownList From Database?

Sep 18, 2010

I'm really struggling with this tonight (this being exactly what it says on the tin, (or the subject!)).

Code I'm working with right now is:

[Code]....

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MVC :: Populating Items In A DropDownList From The Model

Mar 23, 2011

Using MVC2, I want to know how you add the options of a dropdownlist from a database. I have several lookup lists so I will need to do this many times. I'm stuck on part 5 of the MusicStore (which is using MVC3) at this part

[Code]....

Alternatively if someone could recommend an MVC2 tutorial which covers drop lists.

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Populating Manually A Dropdownlist From Code-behind?

Sep 21, 2014

I have code that populates 2 dropdownlist in a gridview. DropStart And DropEnd I want to add time values depending on a few things here's the routine I cal.

Code:

Public Sub GenerateTime(RowIndex As Integer)
Dim ComboStart As New DropDownList
Dim ComboEnd As New DropDownList
Dim ItemList As ListItem
Dim TimeInterval As Integer
Dim IntervalleCalcul As Integer
Dim NombreIntervalles As Integer

[code]....

now this code is called, and runs fine, it goes in the for loop and I see if I trace it that combostart and comboend both have 96 Items in them as expected. hence it did find the controls in the gridview. but when I exit this sub and continue the code by just running the code in the asp.net page the two corresponding dropdown control don't get the values that did get added in the code behind.

In the RowEditing is when I call this routine.

Code:

Private Sub GridDetails_RowEditing(sender As Object, e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles GridDetails.RowEditing

GridDetails.EditIndex = e.NewEditIndex
GridDetails.DataBind()
GenerateTime(GridDetails.EditIndex)
End Sub

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VS 2005 - Populating Dropdownlist Using Code Behind?

Jan 11, 2012

How I populate a dropdownlist from code behind. I want to add the items from an access database. I know how to read the rows but don't know how I add them to the dropdownlist. What I mean by this is I need to add a value column and a display column because I want to save the code value not the display value.

Is this possible and if so how do you do it?

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Forms Data Controls :: EmptyDataTemplate And EmptyDataText Not Working In GridView

Jun 9, 2010

I can't seem to get either EmptyDataTemplate or EmptyDataText of a GridView to work. I'm fetching the GridView contents in de codebehind and attaching them with using DataBind(). I've tried having them as null and as an empty List, and in both cases the text I put intoEmptyDataTemplate or EmptyDataText is not displayed. What am I doing wrong?

EDIT (Code snippet) This is my GridView:

<asp:GridView ID="grid" runat="server" EmptyDataText="EMPTY"></asp:GridView>

And I've tried these two for binding the data:

grid.DataSource = new List<object>();grid.DataBind();grid.DataSource = null;grid.DataBind();

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Forms Data Controls :: GridView: Adding Links To EmptyDataTemplate?

Aug 17, 2010

I have a grid view (using sqldatasource & C#) which returns no rows. By design asp.net does not show header/footer. I looked at couple of sites and suggestions and found it to be too complex. Nothing was simple. The one I found was to create a empty datatable, insert rows and bind it to the gridview. But that code does notwork for me because I am using sqldatasource and using datatable gives error.I decided to just add the following to empty item template.

<EmptyDataTemplate>

<div>
<asp:Label Text="No details found." runat="server"> </asp:Label>[code]....

THe link shows up in the bottom but the event gridview_RowCommand is not fired as the grid view is not created or it does not have rows

How do I call a function on click the add new link and put all my code in there to insert possibly using a modal popup. I cannot use onclientclick because it is javascript.

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Forms Data Controls :: How To Set Label Contained Within EmptyDataTemplate In Gridview

Feb 9, 2011

I have the following setup, but i would like to make the empty text more specific, so just looking to have it display the same message but with the selected value text from the drop down as part of the messages.

so if you select say the 2nd item from the drop down, then i would like to have the empty label(if empty of course) display "There are No Records for Last 24 hrs"

[Code]....

[Code]....

[Code]....

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Web Forms :: Populating Dropdownlist In LoginView From MySql DB?

Jun 13, 2010

Trying to populating dropdownlist in LoginView from mysql db but am getting Object reference not set to an instance of an object error.

Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender

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Access :: Populating An EditTemplate DropDownList In A DataGrid

Apr 7, 2010

Here is the code from a datagrid edit command in which I am attempting to populate a DropDownList in the EditTemplate from the database. The result is only one item (the first) from the database, instead of all items.

[Code]....

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Web Forms :: Populating Dropdownlist From Session Variable?

Nov 3, 2010

To speed things up for the visitor of my web page, I put a personalised dropdownlist in a session variable (as below).

The idea is that if the user is logged in and the ddl session variable is Nothing then it should be set here, and the next times the dropdownlist should be set from this session variable.

The session seems to be populated ok, but the resulting dropdownlist (ddlMenu) doesn't (it just becomes blank). I suspect that it has soemething to do with the way I try to assign it. No matter what I try I run into problems, saying that one thing is a one-dimensional array and the other thing a listitemcollection, or the like. What should I write in the last line?

If Session("aid") IsNot Nothing And Session("ddl") Is Nothing Then
Dim ddlny As New DropDownList
ddlny.Items.Add(New ListItem(vstr, ""))
ddlny.Items.Add(New ListItem(kontrstr, "PageA.aspx"))
ddlny.Items.Add(New ListItem(bstr, "PageB.aspx"))
If dt IsNot Nothing Then 'dt is a datatable, populated elsewhere
For i As Integer = 0 To dt.Rows.Count - 1
ddlny.Items.Add(New ListItem(dt.Rows(i).Item("name"), dt.Rows(i).Item("did")))
Next
End If
Session("ddl") = ddlny
End If
ddlMenu.Items.Clear()
ddlMenu = Session("ddl") 'THIS IS THE LINE THAT SHOULD BE REWRITTEN.

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Access :: Populating Database With DropDownList Data (vb)

Apr 30, 2010

I am trying to populate (store) an access database with the information from a DropDownList.

At the moment i have a form where the user inputs data into a textbox and on sumbission it adds to the access database. I am unsure how to add data to the database from the selections choosen in the DropDownList. I have a DropDownList for Title e.g. Mr,Mrs,Ms,Miss.

I have provided the code that populates the database from the TextBox's

[Code]....

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Web Forms :: Dynamically Populating The Database In The DropDownlist Using C#?

Sep 24, 2010

i have 2 tables Desgn & EmpForm

Desgn table is lik this

CREATE TABLE [dbo].[Desgn](
[DesignationCode] [int] IDENTITY(1,1) NOT NULL,
[DesignationName] [varchar](50) NOT NULL,
CONSTRAINT [PK_Desgn] PRIMARY KEY CLUSTERED

[Code]....

and i have called the Populate1() method in the page load event., but i m not getting the dropDown populated why ?

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