Web Forms :: Drop Down List Filtering For Gridview?
Nov 5, 2010
I have a gridview which is attached to an access database and I have created a query that joins two tables together. All this works as expected. However, I have three problems that I need to solve:
I want to filter the results displayed on the gridview by way of a dropdown list. This drop down list will take its values from one of the tables. So, my question is how do I take a value from my drop down list and link it to my query on the gridview? I want to add an value to my drop down list, which is a default value, like "All". How do I add this value to the list, when it is not part of the table that the values comes from and when selected by the user shows all results? When the user selects a value from the gridview and nothing is returned, how do I get the gridview to show a null result message, like "Sorry, your selection did not bring back any results"?
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Jan 7, 2010
I have a GridView that displays records from an Access database, and I want to filter the records using a selection from a drop-down list. The GridView populates on page load with all of the records. The drop-down list is populated at page load from a different table in the same database. The functionality of creating a new GridView filtered by the selection in the drop-down list is working. However, when a different page number is selected from the Pager of the GridView, the GridView "disappears," or isn't redrawn. The selected name remains selected in the drop-down list, but there are no GridView elements displayed. If I select another item in the drop-down list, I get a new GridView with the correct records, but then choosing a different page results in no GridView. I'm guessing there's something wrong with my OnPageIndexChanging for the GridView event code, but I'm not sure what. My code is below (C#, ASP.NET 2.0):
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
[Code]....
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Feb 28, 2011
i have checkboxlist & gridview, in which i want to make multi selection using checkbox, so when i click on checkbox the data will filter according to selected check box and appear in grid.
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Mar 30, 2010
I have a drop down list that has the initials of about 12 of our sales guys.How can I make it so that when they select their initials from the list, the next drop down list only shows their customers.In my database there is a column for customer name and salesman.
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Mar 12, 2010
How can I have 2 Cascading Drop Down Lists for the same Drop Down List?here is my problemi have 3 drop down lists read from database1- Schools List 2- Classes List3- Teachers ListEvery School will have more than 1 Class and more than 1 TeacherWhat I want is when user select a School from Schools Drop Down List then BOTH (Classes and Teachers) should be refreshed based on the School Drop Down List
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Jan 5, 2011
I have a gridview, inside the gridview I have a template field and inside that, a drop down list.
<asp:TemplateField>
<ItemTemplate>
<asp:DropDownList ID="Hello" runat="server">
[code]...
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May 20, 2010
I have a datagrid which shows the search reasult(time entered by the user preveiously)on a button click event depending uppon the input name or date enter by the user,i want to show a drop down list for a field selection like depertment whenever user want to edit the data in datagridiew,i am using access database & asp3.5.
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Apr 28, 2010
Our site has a page for maintenance of existing members (e.g. adding / changing roles, etc.)This page currently uses a gridview to show a complete list of all members, based on GetMembers() method to populate it.However, as the number of users has grown to several hundred, it has become difficult to locate a particular user by paging through several pages.Is there a way to narrow down this list, maybe with a filtering textbox, so that as you start typing into that textbox, only members whose name contains the typed characters will show up in the gridview?
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Jun 24, 2010
I have drop down list box that I would like to show two columns, is this possible? Or can it be done with a list box?The query correctly retrieves all of the table data to be displayed, one colum is an abbreviation, the other a bit longer description.
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Feb 6, 2010
I have the following Students class:
[Code]....
I need the 1 since it's a foreign key in another table. For the life of me, I can't get this to work like this.
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Dec 4, 2010
I seem to be having a problem loading a gridview using 2 cascading drop down lists. Before I implemented the Ajax cascading drop down list extenders and I just had regular drop down list the gridview that is supposed to load when users choose the appropriate data from the 2 drop down list appears when the submit button was triggered.
[Code]....
When the button event is triggered it looks for the specific value in the second drop down list and calls a specific stored procedure to load the gridview. Now after implementing the cascading drop down lists the page just posts back - there are no errors whatsoever.
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Dec 2, 2010
Is there a way to select the number of records/rows to display in the gridview by a drop down list
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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:
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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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Jul 12, 2010
I would like to implement filtering in a List view based on the value in a DropDownList, in a sort of 'postback' call, where the user selects dropdown values and clicks a Refresh button. I have figured out that I should use my ViewData for the model being listed, but how do I pass the selected values back to the Index override that takes filter parameters?
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Nov 10, 2010
I have a requirement in my application that, while saving the application, need to get all the value from drop down list and pass it to the view model. But application should not allow the user to select more than one item from drop down list manually, ie, only one value at a time. My view model is like ...
public class ListManagement
{
public IEnumerable<selectListItem> InactiveProduct { get; set; }
public string[] InactiveProductSelected { get; set; }
public IEnumerable<selectListItem> ActiveProduct { get; set; }
}
[code]...
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Mar 25, 2011
I am getting this error yet I know it to be untrue.This is the code:
ddlPartnerOrganisation.DataSource = agency.AgencyGetListOfEYDN();
string temp = ddlPartnerOrganisation.SelectedValue.ToString();
ddlPartnerOrganisation.DataValueField = "AgencyID"
;
ddlPartnerOrganisation.DataTextField = "AgencyName"
;
ddlPartnerOrganisation.DataBind();
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Aug 18, 2010
I have an entity set of NotificationTemplates, and each one of these has a collection of zero-many SmsTemplate entities. When editing or viewing a NotificationTemplate, I have a link to View SMS Templates. That link takes me to a List view for the SmsTemplates entity set, filtered for the NotificationTemplate I was viewing.
How can I prevent the user changing this filter to show SmsTemplates for another NotificationTemplate? That is, I want the filter, but it must be read only. The drop-down just mustn't drop down, it must just display the name of the NotificationTemplate that these SmsTemplates belong to. To view SmsTemplates for another NotificationTemplate, the user must click View SMS Templates from that other template.
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Dec 8, 2010
basically I am try to replicate a filtered list like this;
[URL]
but I need it to work on an asp.net, and rather than having to hit a button to load an xml data file I need the data to be initialised when the page loads and get the data from a SQL Server database.
is there a standard .net control I can use?
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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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Aug 31, 2010
I have two drop down list on a page. The first one list projects and the second list users. The userlist is populated with an object datasourse that pulls a list of users for the selected Project.Whenever the Project list selection changes the second ddl Userlist always reverts to the first person in the list instead the person that was selected before a new Project was chosen.
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Jan 7, 2011
I am trying to create an MVC List View that can be filtered by the value selected from a drop down list.
Selecting a value should repost the page ... Since there is no concept of view state data I am having some issues with this ... I can get the repost to take place but my drop down resets and I am not able to get the value that was selected.
ASSET CONTROLLER:
[Code]....
[Code]....
I have tried many of the posts that refer to setting up drop down lists but can't set them up in the content because this is a List View.
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Mar 3, 2010
I have a Drop Down List which I need to bind to the database. Here is the situation. I am not using a SQLDataSource. It is built on the n-tier application. The datasource of the dropdown is referring to a method in the C#class. That method has a generic array list which populates information into the arraylist. The Arraylist is the parameter that is returned to the DropDown List.
I have also set the Text property of the Drop down list
Text='<%DataBinder.Eval(Container.DataItem,"Employee_ID")%>'>
However, it is not populating the DropDown list, what should I do?
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Jul 15, 2010
I retrieved values from database to drop down ,how can i make them as sortable.
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Sep 20, 2010
I want to make a button that changes the value in a dropdown list (dropdown populated from SQLdatasource)This sounds strange i know but i have 4 dropdowns each hidden by panels, unless the preceeding dropdown's value is changed from it's initial value. So i make a selection from my first dropdown list & a postback occurrs triggering the next panel (and as such
the dropdown list) to become visible, this occurs again until eventually my users will see 4 drop down boxes...(all required field vals etc)
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Aug 17, 2010
I am trying to write a web page where i have to select an item form a drop down list.
I am using linq to sql to get the data from the database.the strange thing is that i can register the data to the drop down list but when i select one of them the drop down list lets me to the first item. I set post back = true because i want to update the page every time an item get selected. I wrote a really simple code to check what was going wrong but still...no success. Below i am bringing the code i wrote.
.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication7.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[Code]....
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