Forms Data Controls :: Filtering A Gridview By UserId?
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.
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.
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?
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:
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 ?
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:
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
I have Gridview1 that brings up the columns Resorts, Seasons, Seasons_ID, Resorts_ID, and User_ID
The three ID's are all foreign keys from related tables, and they are together a combined primary key of the table being accessed (they were defined that way to prevent duplicate entries for any User/Resort/Season combination).
Now the problem: I want to use the selected row from that gridview in the WHERE clause of a SQLDatasource by setting the WHERE clause up like:
WHERE (([Resort_ID] = @Resort_ID) AND ([Season_ID] = @Season_ID) AND ([User_ID] = @User_ID)) , with the parameters each coming from statements like
Gridview1.SelectedValue
When I select a row in the Gridview, I get the following error:
Operand type clash: uniqueidentifier is incompatible with int
I am pretty sure this has to do with the User_ID being in the WHERE clause.
So I have tried something like this to access the selected index:
Gridview1.DataKeys(Gridview1.SelectedIndex).Value
This does not work, as it seems to return only the first key (of three) in the DataKeyNames list.
So the question: How can I use the SelectedIndex of that gridview for such a purpose when the key contains a UserID?
i have this gridview that displays a list of employees, with they're names and also the department they work in. ok so lets say i have a combo box and i want to filter by department, or that i have a textbox and i write "Doe" so that brings all the employees with that last name.
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.
(ASP.NET / C#) Beginner Level Client-side filtering. Begin typing an Item name in the filter box above the "Item" column (Grid View) a live filtering will take a place to filter the input letter till the user find what he/she is lookin for.[URL]c6786ACFRkcawodV3pBvg#adaptiveFilter)
Please let me know if there are any sample code to introduce filtering column values in gridview, similar to telerik and devexpress controls. I have sample code for dropdown box filtration. But I am looking for one based on textbox entered values
I'm trying to filter data based on the selected value from a drop down list and the according values of a local variable within a gridview_rowdatabound event. For example, if "In Arrears" is selected, the gridview should return all rows where the account balance is less than -100. So far, when I select a value from the dropdown list, it has no effect on the gridview. Here's the code I have:
If (DropDownList1.SelectedIndex = 0) Then e.Row.Visible = True ElseIf ((DropDownList1.SelectedIndex = 1) And (AccountBalance <= -100)) Then e.Row.Visible = False ElseIf ((DropDownList1.SelectedIndex = 2) And (AccountBalance > 100) And (AccountBalance < -100)) Then e.Row.Visible = False End If
I have a gridview that holds a bunch of companies (600 of them). I have a textbox under the gridview so people could type in a partial name of the company and basically do a search on the gridview. My problem is that when I run the page the only thing that shows is my search textbox, I'm assuming this is because I have setup the SQLDataSource to filter based on this textbox. I'd like the grid to be filled when the user opens the page and only filtered when the user type something in the textbox and hits go. Does anyone have an example of that in VB that I could look at?
I've got a GridView populated via a SqlDataSource whose Select command is controlled by a DropDownList. This is all working nicely:
How do I support the "All" user choice:
In other words, when the user selects "All" there are no aircraft names that match that so nothing is returned. Instead, I'd like the select statement to skip the WHERE clause in this case and just show everything. Do I need to create a second page for this case or is there a way to programmatically alter the SELECT command or some other way to accomplish this?
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;
I have dropdown for height and age and a checkedlistbox for city this controls are populated with data from db.i have a gridview with checkcontrol column after selection of height , age and city the gridview shld get populated with the filtered data from master table and on checkbox selection the selected row shld get inserted to the table. Currently I have a select stmt...
select * from mtbl where height between drpheight.selectedvalue and drptoheight.selectedvalue and age between frmage.selectedvalue and toage.selectedvalue and city in(............) foreach (ListItem listItem in chkcity.Items) { if (listItem.Selected == true) { } }
after selecting multiple items how do i query for city ?
I created a column named InputUserId for the purpose of saving the user's id upon inputing data using formview(so I know who inputed). I would like the user's id to be saved in the table (column InputUserId) and the table's Id (RId) to be saved in the user's profile.
