How to populate a DropDownList (using C#) inside a DataList while page loads.....yes we can do it by using DatasourceID propeerty in aspx page itself(as I've done here..), but how do I do using C# in code behind only?
<FooterTemplate>
<table>
<tr> [code]...
I have a ddl inside the formview that I can't figure out how to wire up properly. The formview contains detail info, but the ddl needs to list the entire set to items. Then I want the ddl's selected value be set from the recordset intended for the formview. I think it's just a timeing issue s I would like your help. Thanks, - EJM.
Here my code somewhat reduced to save space...
[Code]....
I have dropDownList in EditItemTemplate in DataList which is used to choose value from possible ones.
To display cuurent value I used SelectedIndex='<%# (int)(QuestionType)Eval("Type") %>' inside he dropDownList.
But then I started to dataBind dropDownList dynamically and it stopped working...
Why? When does the code in SelectedIndex='<%# this code %>' works?
How to bind chart in datalist dynamically in asp.net c#.
View 1 RepliesI have a photogallery.But I need to load 5 images when the the datalist loads up.
View 3 RepliesI have a form on my website and when the page loads I want the fields to be populated with information from the database. I have written a stored procedure to do this, but I can't seem to find the syntax to make these fields auto populate with this information when a user goes to this page.
View 3 RepliesI need to find which Selected Key value that was selected in the ChildDatalist inside the MainDatalist
this is my Html code...for the MainDataList and the nested Childdatalist
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I am trying to place a datalist inside datalist. I managed to place a datalist inside gridview but not datalist inside datalist.
Below is the code I am using to bind the datalist into the master gridview, I am trying to change this code in such way it will be right for datalist inside datalist but so far I did not succeed.
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i have a question about HyperLink or LinkButton in Datalist in asp.net. I have HyperLink or LinkButton in Datalist. How when clicking on a linkbutton, if satisfies a certain condition, it will move to a different page, and would not stay current page.
View 1 RepliesI need to be able to Page in my Datalist. As you can see from the code below I'm using a SqlDataReader to populate my Datalist.
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i have dropdownList Binded to a data source and its working fine But want i want to do is when the page loads its initial value should Blank until clicking the dropdown button
View 6 RepliesIn Datalist Item Template Another Datalist And Child Datalist How can we access link button inside chile datalist when click in child link button
View 1 Repliesi have 2 DDL in my page that when users select item from ddldistric1 item in ddlcity1 will change these are my code
protected void DDLcity1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrictC();
}
private void BindDistrictC()
[code]...
I am using 3 dropdown list in a gridview and the values for the dropdownlist is dynamic from database.based on first dropdown list selected value the values must fill to second dropdown and based on second dropdownlist selected value then items should load to 3rd dropdown and same for 4th dropdown list. Here if i select age,gender,sex, fist name, last name from the template name Human. The first drop down only populate the fields like Age,gender,Sex and so on., When the second dropdown list populate from the fields corresponding Template name Human, Finance, and so on.
View 3 RepliesI am trying to populate (bind with a dataset) a DropDownList inside a GridView. However, when I do my DropDownList.DataSource = dataSet.. I get the following exception ( Object reference not set to an instance of an object. )
Here is my GridView in the .aspx page:
AllowPaging="True" EnableViewState="False">
Here is the code behind...
Private Sub gvTransferNumbersEN_RowDataBound(sender As Object, e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvTransferNumbersEN.RowDataBound
If (e.Row.RowType = DataControlRowType.DataRow) Then
Dim dsGetTransferNumbers As DataSet
Dim ddlTransferNumbers As DropDownList = DirectCast(e.Row.FindControl("ddlTransferNumbers"), DropDownList)
[code]....
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.
When someone selects one of the search criteria, I want the other dropdownlist boxes to re-populate with only the information from the current search and take out all other information if that makes sense. This search functionality works except it the dropdownlist boxes stay populated with all information originally loaded from the database. Here is my code:
[Code]....
I've got a dropdownlist and a Gridview Based on the choice from the dropdownlist (which has a '--Select--' as the first item), the gridview is populated. If nothing is in the database when queried, I have a message for the emptydatatext property of the gridview. However, it comes up when the page first loads, since it's based on the ddl. How can I make it so that, when the page loads for the first time, the emptydatatext property is ignored?
View 3 RepliesI have an UpdatePanel with a GridView. This GridView has a template column that is a DropDownList. The problem is that the SelectedIndexChanged event does not fire for the DropDownList. Here is the code:
[Code]....
The codebehind:
[Code]....
I have a listview that is showing its result by using a linq query. The linq query goes like this.
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* db.Varer: Varer is a table that contains basic product information like proudct name, product nr. etc. ** a.fk_kategori_id == CatParamId : I'm just saying limit the result according to the Category ID (a.fk_kategori_id). The category id is coming from a dropdownlist (CatParamID) *** Join: Besides the Varer (Product) table I also have another table, Sizes. This Sizes table contains 6 columns (ID_Sizes (int) primary key and the columns: OneSize, S, M, L, XL, XXL all are bit (true or false)). There is a relationship between Varer table and Sizes table. It says that I can only insert a value into the "fk_sizes_id - column" of varer table if that value already exists as primary key within the Sizes table. **** I'm starting by picking basic product values like productId, ProductName etc from the Varer (a) table ***** Then I'm picking the corresponding Sizes values (onesize, s, m, ...) from the Sizes table. Now within my ListView I'm showing the above result by using Eval, like this.
[Code]....
And this works perfectly, but now comes the thing that is causing me trouble. I have the below drop down list (still within the ListView ItemTemplate):
[Code]....
I want this drop down list to be populated with only those of the "linq query's Sizes table result" that are true. By "Sizes table result" I mean these
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The problem is that i have a search page. Access Database holding the information. I have a Access Datasource on the page with a Datalist to show the data. I need to find a way on setting it up to says "Sorry no results found" when the is no results. i am unsure on how to do this though.
Below is my datasource and datalist
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I have 2 datalist control.
onclick of first datalist's checkbox data will be updated in second datalist.
I have to use updatepanel for this.
I have use below code but its not working ...
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Always">
<ContentTemplate>
<asp:DataList ID="DataList1" runat="server" OnItemDataBound="dlist_product_filter_ItemDataBound" Width="100%">
<ItemTemplate>
<asp:DataList ID="product_sub_filter" runat="server" Width="100%" OnItemDataBound="product_sub_filter_ItemDataBound">
[Code] .....
I have a datalist, ineed when user click on an item to fill a grid view? How to do this?
sample code:
<asp:DataList ID="dlRooms" EnableViewState="false" runat="server" RepeatColumns="1"
RepeatDirection="Horizontal">
<HeaderTemplate>
<ul class="block">
</HeaderTemplate>
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I am trying to populate a gridview when you select the dropdownlist.selected value. I don't want to use the sqldatasource or any other datasource. I am trying my best to achieve this, but didn't succeed till now. One of my friend said that i need to get the selected value from dropdownlist and search for the data in the database using the selectedvalue and populate the dataset and bind to the gridview.
View 2 RepliesI have a dropDownlist in a Formview Edit and Insert Template that is Bound to a Field, It is for a credit card expiration date, so I want to programatically populate it so it will automatically show the next 8 years from this year. Works fine!
Except When I add it to the Formview, and click on edit it gives me an error basically saying my record does not match the list item data, but it should since it shows the year just fine. So I am figuring that it is not binding the ListItems to the dropdownlist.
I have tried every event I could try and I always get the same error. I have tried the ModeChanged, DataBound, DataBiding, PreRender, Load on both the Formview and the DropDownList, but no go. How do I do this?
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This works fin on a DropDownList that is not in a FormView, so I know its not the Code. and the record I am updating is 2010, so the record is not out of range