Forms Data Controls :: Filter Expression Not Working?
Oct 15, 2010
I am using a GridView and I require the user to be able to filter using 2 controls. One simply filters the type of row - there is a column called action, and the user selects one of the distinct values from the database in a dropdown box, and the gridview only displays the rows with that value in the action column. On it's own this works perfect.
But I am also adding a textbox where the user can type in an ID of either the 'itemID', or the 'parentID'. This works fine even with the previous control.
Problem is, the dropdown box does not work when the textbox is empty (i.e. all ID's are being shown). If I choose a value and click Submit, it just doesn't do anything. Now if I am filtering by ID and then choose a value from the dropdown box, it works perfect.
Here is my filter expression and parameters of the datasource:
How I can set the total recoreds at the gridview footer which has a Gridview AllowPaginning=true and RowFilter at A View which I bind it to the gridview
in other words how I can get the total records of the View {View of datatable} after applying the rowfilter expression on it.
I am just learning ASP.NET. I have a form which has a gridview on it. It displays data from an Access database. I want to filter the gridview on one of the columns. I am using a dropdownlist to select the filter value only and then a button to execute the filter. If I use "accessdatasource.filterexpression = " type of statement the filtering works but it cancels when you go to the next page on the gridview. So, I have tried the following code. But it does not work.
I am doing some aggregates on in memory tables using the DataTable.Compute method. It works file if there is only one filter, however when there is multiples then it does not work.
This first one works fine the second one does not.
first character is in caps and the rest of the name is in small for Firstname Space first character is in caps and the rest of the name is in small for lastname
I hosted my web application in IIS on windows server.Also i did mod_aspdotnet(i configured my aspx in httpd.conf of apache server in a linux box).now when i hit the URL of linux box...Im able ot view my aspx....but the problem is no button click event id fired and ASP validators are not working and the javascript written by me also not working.
I'm using a sqldatasource to populate a gridview. I've figured out how to use the dynamic sorting, but I'm curious if there is a way to add filtering on each column. So, if a user wants to pick one specific value from grid, then it would re-populate with only rows that have the specific value selected. Excel has this feature in a workbook, but am curious if this is possible on a vb.net web page.
I have a gridview populated by a SQLDataSource that is fairly complicated on a dataset changing constantly. It takes a second or so to fetch the data.
I want to have external dropdownlists for filtering the data that appears in the gridview, either with a FilterExpression or with parameters.
The problem is that querying the database to populate the dropdownlists takes a long time, because of the complexity of the query. The values in the dropdowns can vary based on other filters.
Is there some simple way of querying the database only once, for the main gridview, and then somehow querying the local (to ASP.NET) copy of the data to extract distinct values for populating the filtering dropdowns? I am thinking this might speed things up a bit.
a simple way to filter SQL data when it is retrieved by a GridView control?
Among the various applications I need to create are selecting records based on user inputed criteria (via a DropDownList), and excluding records that have null values (which I need to allow in my database) in certain columns.
I have the web page that meet the problem. There exists a gridview and filtering. When Select all by using function A, it is OK. when Filter by using function B, it cannot filter and return no rows. When Select all again, it is OK. I have tested that function B can return the corrected filtered rows. But when databind in the web page, it cannot show and no error?
i have gridview and data already binded like this...
First Name Last Name Age Date
Qasim Nadeem 26 13/01/2010 Ali Ahmad 20 17/02/2010 Qadeer Numan 18 23/08/2010 Ahmad Asghar 20 23/08/2010 Mohammad Nadeem 26 13/01/2010
now i have One TextBox and four radio button like 1.rbFirstName,2.rbLastName,3.rbAge,4.rbDatemy requirment is if i select radiobutton first rbFirstname and i will enter a text into textbox than ONKEYUP filter the gridview data and show only those row where data is match in first coloum"First Name" and hide the rest of rows...same required for radiobutton 2,3 and 4 respectively in gridview 2nd ,3rd and 4th coloum....i need this solution in javascript or Jquery but i dont want reload the page...
I've built a User Control that contains a ListView. To make it work I need to pass to it a DataTable. The columns of this DataTable need to have particular names that match up with what the ListView is expecting. I have a large DataTable that I need to massage/convert over to this different format. To do that I need to filter out columns and rename the column names. The actual data in the DataTable doesn't need to change. Is there a good way to do this without actually instantiating a new DataTable and copying the data from the large DataTable into it?
I have an aspx page with detailsview whose datasource is an objectdatasource. I have a dropdownbox, showing categories, which act as a filter. If the user selects a different value in the dropdown box, the data obtained through the objectdatasource will be changed, and the new set of data will be displayed on the detailsview. This dropdownbox, is being used as the ControlParameter in the objectdatasource, so whenever a new item is selected the detialsview is updated accordingly. Now I want to add another filter in the form of a textbox, when the user could type in the title and hit a button, which should get a filtered set of data from the database.
I'm sure this is something simple that I have overlooked, but whilst configuring my SQLDataSource, I have tried to add a where statement onto a column in my datatable that has a data type of 'bit'. I have tried typing 'WHERE Answered = "0"' for false and also 'WHERE Answered = "false"'. The data source doesn't return any rows to my detailsview with either statement.
How do I do this? I'm using a login control inside a loginview control. I want to use the username entered as a parameter in the select statement of my gridview so that it will filter the data to display only the rows that contains that username.
am using GridView with SQLDataSourceI want to add filter DropDownList to the footer of the grid,each column of the grid will have a DropDownList in its footer that has all data in that grid (including data in other pages)how to do that?
