C# - Populate A Gridview With Table Data From Sql?
Sep 9, 2010
I want to populate a gridview with table data from SQL. I tried just returning my SqlDataReader object and using it as my datasource, but I am getting errors that the reader has been closed. I wanted to convert this to a DataSet and just return a dataset, but I couldn't find an easy way to convert the row data to a dataset. I've also read that DataSets are dead in .NET 3.5/4.0, is this true? Here's my Data Layer method. It would be awesome if I could return something useable as a datasource:
public SqlDataReader GetSites()
{
SqlConnection sqlCon = null;
My stored Procedure returns two tables say table1 and table2. When I try to fill the dataset, table1 is filling properly and table2 filling only one row of the table remaining rows coming empty. There is no error when I compile the code. And the output is an empty page.
Here the code I've used
SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString); SqlCommand cmd = new SqlCommand("TABL", cn); cmd.CommandType = CommandType.StoredProcedure; SqlDataAdapter dad = new SqlDataAdapter(cmd); DataSet ds = new DataSet(); dad.Fill(ds); GridView1.DataSource = ds; GridView1.DataBind();
I have two tables, Users and Roles. The roles table is a reference table for the different roles of my site (RoleId and RoleName columns). The Users table contains profile data for each user, including a RoleId column that is FK'd back to the Roles table [RoleId].
Both tables are in a Linq to SQL model.
I have an edit page created which lists all the profile values of a user. The edit page inherits the User model. One of the editable values is the RoleId field. I want to set this up to be a drop-down list that contains items labeled using the RoleName column of the Roles table, and matched with values of RoleId.
MenuItem menus = new MenuItem(); GridView1.DataSource = menus.GetDataTable(); GridView1.DataBind();
menus.GetDataTable() returns a DataTable. In the above case, we are returning to GridView. I need to populate the data into a combo box. How can i do it?
NOTE: Assume GetDataTable only returns records of a single column. I'm using Winforms
Basically I want to populate a drop down list with time slots for a user to select. If the time slot is already recorded in the database table I want to skip that one so it doesn't display as a selection in the drop down list.
So my drop down list looks like;
[Code]....
And then I have setup a datasource (even though I may get rid of it to bind in the code behind file)
I have textboxes of customer Address data. bound to Invoice table. Displayed on a Page.
I want to be able to show same data in detailsview. bound to Delivery table
using the following criteria:
1. check delivery table for address data, where email = usermembership Email address and populate Detailview. If no data present, copy Customer Invoice Address data across IF present, to Delivery Detailsview.
2. Insert record IF no Address found/Update IF record amended in Delivery detailsview(Only applicable to Delivery Detailsview)
I would prefare this to be accomplished in a Button_Click event instead of using Command buttons in bottom row of Detailsview.
This is because i am using a Multiview page that processes Customer Address data.
I want to know how we can create a table (or a layout consisting of div's) and poulate it with data from the database. We do this generally using data controls like gridview, datalist etc. But i am restricted by these controls like there is no inbuilt paging with datalist and there is no repeat column in gridview. I just want complete control over the layout as well as the data that goes into it.
I dont know how to do this. Is there anyway of doing it without using the data controls.
I am experiencing is that when I try to populate a table on a online environment with the below code, the table is populated twice. With the same code the table is populated correctly on an offline/production environment and cannot understand why :
This is what I have:
The table is called Trips
Code Behind:
[Code]....
This is what I use in my .aspx page:
(removed for brevity...)
<script type="text/javascript">
since I am trying to find one googling but there is nothing apparently.
I currently have a gridview that has 1 column with radiobuttons. I then have a update button to update all the selected records. But what i want to do is add a step before the update. I want to add a multi-line textbox for each radiobutton selected to allow them to add notes/comments for each record before the update occurs.
Because the textbox will be large to allow them to enter the comments, i wanted to list them out seperately per record selected. Maybe a gridview is not what i need for the 2nd part, but thats the scenario and looking for suggestions on what / how to do it.
Example:
GRIDVIEW1
ID column1 column2 column3 radiocolumn 1 1111 2222 3333 Yes / No (selected Yes) 2 2222 3333 4444 Yes / No
I have two gridviews on a form. When the user selects a row from the first gridview the second gridview should populate based on the selected row. The second gridview is not generating as expected. If I remove the "@vendor_id_fk" from the WHERE clause of the query and replace it with a value, the second gridview generates when a row is selected in the first gridview. So I know that's where the issue lies, but I am having some difficulty solving the problem.
I'm new to asp.net and I'm trying to implement a shopping cart.With the following code (. Vb):
PartialClass a Inherits System.Web.UI.Page Protected Sub Page_Load(sender As Object, eAs System.EventArgs) Handles Me.Load Dim FileNames As ArrayList =Session("SessionCarrito") If FileNames IsNot Nothing Then For Each Fname As String InFileNames ListBox1.Items.Add(Fname) Next End If End Sub End Class
That code shows a ListBox with the file names that are stored in a session variable. Works fine but I need to show those filenames in a gridview which also display a ID for each item and a button that will eliminate these items. How I can change my code to work with a gridview?
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.
i have a dropdownbox and a gridview what I want is to have a list item which populates all data in a gridview. I have tried using list item selected value=0 but to no avail. what is the easiest way to achieve this?
I need to create a gridview to show in each row, some columns from the SQL Database, and in other columns I want to have text fields, buttons and DropDownLists!
This GridView is to display the users of the web application.
First columns are name, email, and other stuff that can be easly queried to the SQL database.
Then, I need to have a column with one text field, and some buttons, in the text field the AdminUser should be able to insert some text and then click in a button to change the email/pass from the user represented in that line.
The other field I need, is a DropDownList that shows by default the Role of the user of the row, but we can choose another role and apply it, with a button in the same cell!
If I create a code-Behind query and populate the GridView, I don't know how to insert textbox's, button's, DropDownList's
If I create the GridView with the wizard, I can had TemplateFields, but I don't know how to associate the query with the BoundFiels where should be the name/email of the users.
Other problem, is that, even If I get to construct my GridView with sucess, How can I reference the row? So I can apply the changes?
L server into one datatable inside DBLayer.I want to return this table as Hashtable inside BLL, and I want to show the result inside GridView inside Presentation Layer.
I'm currently switching over to ASP.NET MVC and have ran into a problem. I have a list of items (e.g. a list of names) that I would like to display in a table. I would like to display it down a column, before starting onto next column.
I have tried a nested for loops for mark up of <tr/> and <td/>, and am getting undesired results.
