Forms Data Controls :: Filtering On DataList Object
Sep 29, 2010
This seems like a stupid, basic question, but I can't find how to do it (plus I've been doing MVC and haven't done in webforms in ages now) - I've got a DataList object that hooks into an SQLDataSource object, and this works fine. However I need to create a second DataList object for a slightly different set of criteria. Rather than creating a second SQLDataSource object and thus calling the DB twice, I would like to make my SQLDataSource object return a broader set of results (this is easy as I am searching on a column, then each DataList is further filtering on another column) and then further filter these results on each respective DataList - how do I do this?
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Similar Messages:
Sep 21, 2010
I have made site with datalist and I want to use SQL data filtering and paging, my only problem is that i want to put filtering into paging procedure
paging 1)
Alter Procedure dbo.GetProductsPaged
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Jun 26, 2012
I have tried your code.. but it seems no be working
The error is. .. Could not find stored procedure 'SELECT PlayerName, PlayerCost, PlayerVoltage FROM Player'.
private void BindDataList() {
string strConString = ConfigurationManager.ConnectionStrings["PlayersConnectionString"].ConnectionString;
SqlConnection con = new SqlConnection(strConString);
//Create command
SqlCommand cmd = new SqlCommand("SELECT PlayerName, PlayerCost, PlayerVoltage FROM Player", con);
[Code] .....
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Jul 24, 2012
I have a catalog function whereby user can filter their selection by clicking radiobutton. For example, by selecting the Dining radiobutton, all packages related to dining would appear.And i using DataList1.Items. Count method to count the number search result. I had implement this method in the page_load, however the value of the number of datalist keep displaying previously loaded datalist. Here is my code :
protected void Page_Load(object sender, EventArgs e)
{
DataList1.DataSourceID = "SqlDataSource3";
Label1.Text = DataList1.Items.Count.ToString();
[code]....
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Mar 14, 2010
I have a standard gridview, with the standard paging and sorting interface enabled.The application holds appointments for three organisational units, with a maximum of 3000 appointment records being returned across all three units. The appointment records are quite small.
The choice I am faced with is to:
1. Have an Org Unit dropdown which returns to the datasource on change of selection and at inital databind, and returns appointment records for one org unit at a time i.e. approx 1000 records.
2. Have the objectdatasource return all 3000 appointment records for all org units at initial databind, and filter the objectdatasource by org unit on change of selection, thereby saving a trip to the datasource.
I guess the question boils down to identifying the point at which querying the datasource by org unit is more efficient than filtering the records returned by org unit.
Is 3000 records a lot for a gridview to be paging and sorting etc.
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Sep 30, 2010
I am using this code to fill my datalist:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim myConnection As SqlConnection Dim myCommand As SqlDataAdapter
myConnection = New SqlConnection("mydb")
myCommand = New SqlDataAdapter("SELECT * FROM Posts", myConnection)
Dim ds As DataSet = New DataSet() myCommand.Fill(ds)
DataList1.DataSource = ds DataList1.DataBind()
End Sub
It works and fills the datalist with the whole table. When this page opens the address bar is like [URL].Ii would like the datalist to show all contents in the table with this specific thread ID.
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Nov 15, 2010
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
[Code]....
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Mar 16, 2011
Am building a Form for out intranet that runs on ASP.NET and C#, it is to be a survey from a SQL database. I have the connections setup can pull informations/Questions from the database. I am having a problem with setting up radio buttons within a datalist, ive never done this and i know they require unque names.
It is to be 4 radio buttons per question where only one can be select, i know how to group just not via a datalist with unique names
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Jun 4, 2010
How can I do paging with datalist if that datalist is populated with inputs coming from a querystring?
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Aug 30, 2010
I 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
[Code]....
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Mar 14, 2011
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.
[Code]....
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Aug 16, 2010
i have a datalist . that is contains 7 columns in repeat layout .when i have more from 7 columns , datalist style is normal .but when i have smaller than 7 columns ! data list style is not normal,
because there are some empty columns without specific schema.
How i can make a datalist > when i have 1 columns in my datalist my first layout width be 100% ;
and dont show some empty layout ?
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Jun 7, 2010
I'm getting an error 'Object reference not set to an instance of an object' when I get to propertiesDataList.Databind()
<ItemTemplate>
test
<strong><asp:Label ID="titleLbl" runat="server" Text='<%# Eval("title") %>'></asp:Label></strong><br />
<asp:Label ID="locationLbl" runat="server" Text='<%# Eval("location") %>'></asp:Label> - <asp:Label ID="priceLbl" runat="server" Text='<%# Eval("displayPrice") %>'></asp:Label><br /
[code]...
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Nov 29, 2010
how to use FilterExpression with an object datasource when it is bound using a selectmethod that returns a list of entity objects?
I get the following error when I attempt it.
The data source 'testODS' only supports filtering when the SelectMethod returns a DataSet or a DataTable
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Mar 29, 2011
I've been filtering my gridviews with the FilterExpression of the underlying ObjectDataSource etc. I am wondering how I can implement filtering on my GridViews if I just directly databind it to a datatable etc?
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Jan 28, 2010
I need to filter data in a View using three dropdownlists that are populated independently of one another. The items in the second ddl are not based on the items in the first, etc. Each ddl is populated using its own sql statement. I want to be able to use each of these dropdownlists independently of the other two, but I want the data that is returned to be based on the values already in the other dropdownlists when I make a selection change.
For example: DDL1 is populated with Horsepower values from its own SQL statement.
DDL2 is populated with Gallons per Minute from its own SQL statement, unrelated to what is chosen in DDL1.
DDL3 is populated with Diameter values from its own SQL statement, unrelated to either of the other DDLs.
I want to be able to make a selection from any of the DDLs and filter data based on the selection, and whatever the current value is for the other two DDLs.
I'm coding in C# and I think I may need to create a delegate and an event to listen for when the SelectedIndexChanged event fires on any of the DDLs. This is slightly more complicated than anything I've coded up to this point, I'm a beginner, and I'm not even sure I'm aiming in the right direction for a solution.
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Jun 9, 2010
I want to filter my gridview using two parameters that come from Dropdownlists. I bind these drops with two linq queries and next I would like to filter my gridview with query that has two parameters that comes from selected values from those drops. Everything is inserted in UpdatePanel. Here is my code:
asp:UpdatePanel
ID="UpdatePanel1"
runat="server"
>
[Code]....
I don't know how to get selectedvalues from dropdownlist and pass them to Bind() function which binds grid view
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Dec 30, 2010
I am trying to populate a gridview that returns only the logged in users' records. Specifically, I am getting a blank page when I load the page. To clarify, I get the blank page after successfully logging in to the ASP.Net Membership and do have data to return from the requested table.
I am reaching out to the online community after numerous failed attempts to research the solution and successfully return the desired results through trial and error variations.
ASPX Page
[Code]....
ASPX.vb CodeBehind
[Code]....
<%@ Page Title="" Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false"
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Jan 27, 2010
I'm using a GridView with an ObejctDataSource. The data is provided by a business object and not a DB. It returns a list of people and each person belongs to a group. Now I need to filter data. For example, I need to return list of people in specific groups. How can I specify a list of groups to be able to filter the data ? Could I use SQL like syntax ? I understand the filter expression works only when data is returned as a datatable. But in my business object I maintain data as hashtables and return as List<PeopleInfo>. Do I need to return list as datatable instead ?
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Jan 8, 2011
after hours of searching and testing (and found no luck), I came here to ask for your help again. I have a gridview and two dropdownlists. The first dropdownlist (DropDownList1) filters the gridview with Type of Customer. Here is the code on the aspx:
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
AppendDataBoundItems="True">
<asp:ListItem Value="1" Selected="True">A Type</asp:ListItem>
[code]...
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May 2, 2010
I'm having a HUGE problem with filtering!! I have a GridView1 with data from sql database (table called Requests) >> using asp:SqlDataSource Control.
and I have 2 columns (CV/ Transcript) which are Hyperlink columns..
I want to filter the data by:
1- GPA: for example view all data with GPA more than 3.55 and so on...
2- Credits: same as GPA (view all data with number of Credits more than 135 and so on...)
3- Dept. Name: it could be DropDownList and the user choose the department he wants to see results from.
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Jan 21, 2010
I have a BLL that takes data from DB into datatables and for each datatable there are functions that transform them into Collections of the corresponding class.
When I put the data in a Collection into GridView through ObjectDataSource I don't have the option to click on the header of a column and get the data sorted. The headers are only clickable when DataTable is passed to the ObjectDataSource.
How can I get arround this problem without passing DataTables to the ODS?
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Mar 14, 2010
Does anyone know if this asp.net site has some tuturiols that explains in details on how to apply filtering on a gridview? I have searched for it but I couldn't find any tutorials or examples
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Jun 22, 2010
I was looking for a GridView with Custom filtering, all I could find where the filtering is done like
ColumDate=Value user enters
What I need is the user can filter by any condition Eg >, < , =. Like etc the way we do it in queries.
Is this possible? Are any samples already available?
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Mar 17, 2011
I have a gridview tied to a sqlDataSource. I want to filter it using FilterExpression of SqlDataSource. The controlParameter that I want to use is dropdownList SelectedItem.Value. This value is an integer. I am getting this exception: System.Data.EvaluateException:{"Cannot perform '=' operation on System.Int32 and System.String."}
[Code]....
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