C# - Filtering SqlDataSource With Multiple Dropdownlists?
Feb 4, 2011
I have an SqlDataSource at the moment, which I want to be able to be filtered using 3 DropDownList's. Basically, each DropDownList contains values for a certain column on the table, so when they choose one of the values, the SqlDataSource only shows values with that value in the relevant column.
So my table is somewhat like this:
ID (primary key)
ManufacturerID
ItemTypeID
UnitTypeID
And the 3 DropDownList's contain the following:
Manufacturers (value = ManufacturerID)
ItemTypes (value = ItemTypeID)
UnitTypes (value = UnitTypeID)
My filter expression for the datasource is currently like this, but it doesn't seem to work unless all 3 boxes have a value selected, which is not ideal. Any ideas guys? My filterexpression is below:
ItemTypeID = {0} OR ManufacturerID = {1} OR UnitTypeID = {2} OR (ItemTypeID = {0} AND ManufacturerID = {1}) OR (ItemTypeID = {1} AND UnitTypeID = {2}) OR (ManufacturerID = {1} AND UnitTypeID = {2}) OR (ItemTypeID = {0} AND ManufacturerID = {1} AND UnitTypeID = {2})
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Jul 16, 2010
I'm attempting to hook up multiple DropDownLists to a single SQLDataSource, but I want the SQLDataSource to return different rows depending on which DropDownList it is populating.
Say I have a table full of names (we'll call it TABLE_NAMES):
[code]....
....and I have two dropdown lists, one with a list of person names and one with a list of dog names.
Is there a way to link up each of these dropdown lists to a single SQLDataSource and use the SelectParameter to differentiate between which records I want returned for each dropdown list?
To make matters worse, these dropdown lists will appear within a GridView control....so there will be multiple instances of each dropdown list depending on how many rows there are in the GridView.
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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.
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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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Aug 5, 2010
I have to generate multiple dropdownlists on clientclick. That is new dropdownlists on every client click.
I placed a button and wrote code on click event. protected void addReq1_Click(object sender, ImageClickEventArgs e)
{
DropDownList oDdl = new DropDownList();
oDdl.ID = "ddlReq" + (++i).ToString();
oDdl.DataSourceID = "DSUsers";
oDdl.DataTextField = "UName";
oDdl.DataValueField = "UName";
HtmlTableCell tc0 = new HtmlTableCell();
HtmlTableCell tc1 = new HtmlTableCell();
HtmlTableCell tc2 = new HtmlTableCell();
HtmlTableCell tc3 = new HtmlTableCell();
tc2.Controls.Add(oDdl);
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tr.Cells.Add(tc0);
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tr.Cells.Add(tc2);
tr.Cells.Add(tc3);
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}
Here "DSUsers" is SqlDataSource. "i" is static variable. "serarch2" is html table with runat server tag The problem is only one control is getting rendred, after that on every additional click same DropDownList is getting replaced. No new DropDownList is added to the page.
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Jun 25, 2010
I want to assign same datasource to multiple DropDownLists in a form, when the page loads, only the first drop down list has filled the content of datasource, others are empty, what's the missing point? Here are the codes;
<form id="form1" runat="server">
<asp:ScriptManager ID="scriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="panel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div id="div1" align="center">
<table>
<tr>
<td><b>Brand-Model</b></td>
<td><asp:TextBox ID="brandText" runat="server" BorderStyle="Inset"></asp:TextBox></td>
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[Code]....
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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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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";
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[code]....
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Aug 25, 2010
I have the following code which toggles the visibility of one of a pair of DropDownLists based on the selected radio button. This code works but my problem is that I have several sets of controls just like this on a single form. How can I use a single JavaScript Toggle() function, irrespective of the ID of the RadioButtonList that triggered it?
function Toggle()
{
var list = document.getElementById("produceDDL");
var inputs = list.getElementsByTagName("input");
var selected;
for (var i = 0; i < inputs.length; i++)
{
if (inputs[i].checked)
{
selected = inputs[i];
break;
}
}
if (selected.value == 'Vegetables')
{
div1.style.display = 'none';
div2.style.display = 'block';
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div2.style.display = 'none';
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RepeatDirection="Horizontal" runat="server">
<asp:ListItem Selected="True">Fruit</asp:ListItem>
<asp:ListItem>Vegetables</asp:ListItem>
</asp:radiobuttonlist>
<div id="div1">
<asp:DropDownList ID="fruitDDL" Width="120" runat="server">
<asp:ListItem>Select</asp:ListItem>
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<asp:ListItem>Oranges</asp:ListItem>
</asp:DropDownList>
</div>
<div id="div2" style="display:none;">
<asp:DropDownList ID="vegDDL" Width="120" runat="server">
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<asp:ListItem>Potatoes</asp:ListItem>
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</div>
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Jan 30, 2011
i have the following code:
[Code]....
3 nested dropdownlists SELECTing from DB. So i select the brand, then i select the model and then i select the product and click on SEARCH button.
But when i select thebrand, and then the model, and if i want to change the brand, it does not reset the second and third dropdownlists.
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Jul 6, 2010
hope you guys are doing well! I have a question and no answer yet how to do it. Right now i can have 1 dropdownlist and when i press on my search button its show the result of the query the user ask
but how to do it with two seperates dropdownlist ? isnt it with inner join ? also if the value is null what to do ?
here is my sample little code for a sample search
[Code]....
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Nov 11, 2010
I hope somebody can guide me to overcome below challenge.
My form has three dropdownlist controls and one listview. Everything works fine if I don't try to pass multiple querystrings to get different URL on the same page. But challenge comes when I try to pass multiple querystrings to show different URL's for SEO.
Following are the ID's:
1. DropDownList1= Country
2. DropDownList2= State
3. DropDownList3= City
4. Listview1= Resturants (I am not including Code .....yet)
With my code DropDownList1 holds the state and passes the value to URL OK .When I try to select
different value in DropDownList2 or DropDownList3 are able to
pass the vaule to URL but in the form they stay on the first item and doesn't change and so does Listview1.
Here is my code:
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (false == IsPostBack)
{
if (Request.QueryString["Brand"]!= null)
{DropDownList1.SelectedValue = Request.QueryString["Country"].ToString();}
if (Request.QueryString["Gender"]!= null)
{DropDownList2.SelectedValue = Request.QueryString["State"].ToString();}
if (Request.QueryString["Category"]!= null)
{DropDownList3.SelectedValue = Request.QueryString["City"].ToString();}
}
}
protected void DropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
Response.Redirect("/resturants.aspx?State=" + DropDownList1.SelectedValue + "&State=" + DropDownList2.SelectedValue + "&City=" + DropDownList3.SelectedValue);
}
</script>
<head></head>
<body><form id="form1" runat="server">
<asp:DropDownList id="DropDownList1" runat="server" AutoPostBack="True" DataSourceID="AccessDataSource2" DataTextField="Country" DataValueField="Country" ForeColor="#808080" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged" >
</asp:DropDownList>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="../database.mdb" SelectCommand="SELECT DISTINCT [Country] FROM [Country] ORDER BY [Country]">
</asp:AccessDataSource>
<asp:DropDownList id="DropDownList2" runat="server" AutoPostBack="True" DataSourceID="AccessDataSource3" DataTextField="State" DataValueField="State" ForeColor="#808080" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged" >
</asp:DropDownList>
<asp:AccessDataSource ID="AccessDataSource3" runat="server" DataFile="../database.mdb" SelectCommand="SELECT DISTINCT [State] FROM [table] WHERE ([Restuarant NAME] LIKE '%' + ? + '%')">
<SelectParameters>
<asp:controlparameter ControlID="DropDownList1" Name="Restuarant_NAME]" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:AccessDataSource>
<asp:DropDownList id="DropDownList3" runat="server" AutoPostBack="True" DataSourceID="AccessDataSource4" DataTextField="City" DataValueField="City" ForeColor="#808080" OnSelectedIndexChanged="DropDownList_SelectedIndexChanged" >
</asp:DropDownList>
<asp:AccessDataSource ID="AccessDataSource4" runat="server" DataFile="../database.mdb" SelectCommand="SELECT DISTINCT [City] FROM [table] WHERE (([State] = ?) AND ([Resturant NAME] LIKE '%' + ? + '%'))">
<SelectParameters>
<asp:controlparameter ControlID="DropDownList2" Name="State" PropertyName="SelectedValue" Type="String" />
<asp:controlparameter ControlID="DropDownList1" Name="Resturant_NAME" PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:AccessDataSource>
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Jan 21, 2010
Im looking for a flexible way of filtering a GridView from multiple DropDownLists and TextBoxes(from/to date). Filtering by the DDLS and txtboxes works fine separately, but I can't get them working good together.I have followed the Data Access tutorial and created a three-tier website(DAL - BLL - Pres). I have done it by creating a tableadapter with a multiple methods that receives parameters I want to filter on.The DropDownLists depend on each other, so you cannot filter on something that isnt there.How can I add textboxes make sure that only correct dates based on the DropDownLists can be chosen? Using a DropDownList and maybe get 100 dates is not that good.
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Jan 21, 2010
I am trying to create a form in MVC C# that will allow a user to input a Last Name, First Name, Department, Year and click a Search button that will bring back a list of employees based off the inputted search criteria.My problem is allowing multiple search textbox criteria into one search button. I am able to hardcode values into an html actionlink like below and it works but unable to grab the values from the textboxes.
<%= Html.ActionLink("Results", "Results", new { lastName = "Smith",
firstName = "", dept = "", year = "2008" } )%>
I would really just like to have four textboxes and a search button to bring the list back from the database.
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Mar 16, 2010
I am writting a directory website that advertises fitness classes. These classes are listed by Class Type, and Geographical Area. Each Class Type can satisfy one or more of four Fitness Goals such as Loose Weight etc...
I have a table for Classes (classid, classname, classdesc, classtypeid, geoareaid) I have a table for geographic areas (geoareaid, geoarea) And I have a table for ClassTypes (classtypeid, classtypename, classtypedesc)
Which obviously links geographic area via the classes.geoareaid as a forgien key and classtypes by classes.classtypeid as a forgien key.
I can list all classes by type and also by geo area no problem, the problem arrises when I then also want to filter by goal.
The Goals Table (goalid, goal, goaldesc) is linked to the classtypes table via another table classtypes_goals (classtypeid, goalid) as each classtype can satisfy any of the 4 goals.
I am using a DataSet to fetch the data from a Stored Procedure in the SQL Database but because the classtypes can be linked to multiple goals I am getting duplication in my list depending on how many goals a classtype satisfies.
All I need in my data list is class name, class type and area I don't even need to display the goal I just want a drop down above the table that will filter the list and show only classes of classtype that satisfy the goal chosen.
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Jan 20, 2011
cant find any post about filtering multiple strings in 1 column.
<asp:SqlDataSource ID="SqlDataSource8" runat="server"
ConnectionString="<%$ ConnectionStrings:DatabaseConnectionString %>"
SelectCommand="SELECT [ID] FROM [Aaden] WHERE ([Choice] = @Choice) ">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownListChoice" Name="Choice"
PropertyName="SelectedValue" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
this is does search selected string.How can i search multiple strings in one column. for example my dropdownlistchoice.items ("a","b","a+b")
When i choose "a+b" in my drobdownlistchoice i like to display items "a" and "b" how to do it?
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Dec 10, 2010
I am using Excel 2007 to connect to a SQL Server 2008 Analysis Services database.
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Mar 14, 2010
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The choice I am faced with is to:
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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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Aug 18, 2010
i have several different sqldatasources on my .aspx page which are linked to my gridview. so sqldatasource1 - when the btn "all" is clicked displayed all the records in the gridview, if another button "btnsearch" is clicked it displays the records based on the query passed in to the gridview. i have paging enabled on the gridview but when i go to the second or third page, i have to double click the number before it displays the records, how do i get the paging to work with a specific datasource depending on if the user wants all the records to be displayed or just part? , the datagrid loads up with all the data on rendering.
[Code]....
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Jun 25, 2010
I'm wondering how I can make one dropdownlist affect another one.. For example...You select your country from a drop down list of countries. On selecting it, another dropdown list becomes visible and displays the states of your country. I'm taking this data from a database, so it merely has to link to a different table for each country selected.
Also, I want the option of being able to add a 'state' to the database from the webform by typing whatever its called into the combobox so that future users will see that option.
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Mar 4, 2011
I have a parts table (ID, PartName, Category). I have an Engine table that has 10 columns to specify the 10 main parts that comprise the engine (EngineID, PartA_ID, PartB_ID, PartC_ID...).
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Mar 3, 2011
I have 2 tables
One:Table Name Rider With columns RiderID,LName,City
Two:Table Name Car With columns CarID,RiderID,Color
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Like if you crreated a SQLDataSource using just one table as it's source. You can use that SQLDataSource for a gridview.
Then in the gridview you can display all the data from the table but you can also EDIT all the data in the table through the gridview.
But if I create a SQLDataSource using 2 table joining them together with an INNER JOIN with a Primary Key in one table and a Foriegn Key in the other table. I can still use this SQLDataSource with a GridView to display the data but I can't EDIT the data through the gridview for the 2 tables.
Is there anyway to do this using a SQLDataSource and GridView?
OR is there another way to accomplish this?
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Sep 1, 2010
a FormView that is linked to SqlDataSource1a Repeater control (inside the formview) that is linked to SqlDataSource2Thus representing a simple "1 to many" or "parent/child" relationship in the database!qlDataSource1 is simple in that it just retrieves a straight set of records from a table and they are displayed back in the FormView (nothing special happening there).SqlDataSource2 has parameters that filter the contents of the repeater based on the record that is shown in the Formview. This would normally be simple enough to set up by setting the parameter to the formview.selectedvalue property.HOWEVER - THE PROBLEM ARISES...The formview has multiple DataKeyNames because the table that the SqlDataSource1 links to has a compound key. So to filter the Repeater correctlySqlDataSource2 needs to map 3 parameters to 3 data key values in the formview.Any ideas how to do this?I've tried setting the SqlDataSource2 parameters to:
<SelectParameters>
<asp:ControlParameter ControlID="FormView1" Name="Parameter1" PropertyName="DataKey(0)" />
<asp:ControlParameter ControlID="FormView1" Name="Parameter2" PropertyName="DataKey(1)" />
[code]...
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May 19, 2010
I have a stored procedure that returns 3 tables within the single recordset it returns. If I set a SqlDataSource to get data from this procedure, it works, but it only returns the first table. I want to have a GridView display the data from the 2nd or 3rd table using a SqlDataSource, but I can't figure out how to specify a particular table.
While there are some posts discussing this out there, I can't get a definitive answer about whether or not this is even possible (?). In a worst-case scenario, I can create another SP that only returns the 3rd table - but that creates a little maintenance headache that I would prefer to avoid.
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May 14, 2010
I am trying to tie a sqlDatasource to a Stored Procedure. The stored procedure looks like...
[Code]........
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