DataSource Controls :: Getting Dataset Back After Assigning It To GridView?
Jan 16, 2010
I have a code something like this :
MyLinqDBDatacontext db = new MyLinqDBDatacontext();
var taskname= db.my_stored_proc_get_taskName(int taskId);
gridview.datasource= taskname;
gridview.databind();
this works fine
but i when i am using LINQ it gives me result in the form ISingleResult so can anyone tell me how to get a dataset from a girdview after assigning data to gridview
I need a functionality something like :
Dataset ds= new Dataset();
ds="Here i want a dataset converted from a gridview"
I want to reformat one column in database. So that I've used strong typed dataset by drag and drop in VS 2008. When I've already updated all data in dataset, I call method update() of table adapter to perform update my modified data of dataset into database. But it doesn't work.
Below is my code
[Code]....
The RemoveWhiteSpace(string input) is my function to remove special characters from dataset.
I have a Public Sub listed in a class file that I am using to store Select, Update,etc...methods for an Object Datasource. When I attempt to configure the datasource, the Class appears as a business object, but the sub within the class is not available for method selection. (It does not appear in drop down list in wizard.)
The sub exists, so where is a good place for me to start looking for a fix? I have part of the class file listed below:
string studentno = "select regno from stu_ref where batch='" + dropbatch.SelectedItem.ToString() + "'"; SqlDataAdapter dastudent = new SqlDataAdapter(studentno, cn1); DataSet dsstudent = new DataSet();[code]....
form the above coding i will get all values form the table stu_ref of regno of student now i need to get the first and the last regno from the table
I am trying to return a dataset. I must be doing something wrong. The returned dataset in this sample code indicates there is a datatable, Users, but there are no datarows. What am I doing wrong? This example is only using the rows.count, but of course I really need to use the whole datatable as the datasource for a gridview.
[Code]....
Public Function getmyds() As DataSet Dim dsUser1 As DataSet = New DataSet() Dim tbUser1 As DataTable = dsUser1.Tables.Add("Users") tbUser1.Columns.Add("UserName") tbUser1.Columns.Add("Days Remaining") tbUser1.Columns.Add("UserAccountControl") Dim rwDefaultUser1 As DataRow = tbUser1.NewRow() rwDefaultUser1("UserName") = "John Smith" rwDefaultUser1("Days remaining") = 100 rwDefaultUser1("userAccountControl") = "Enabled" Return dsUser1 End Function
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 a GridView populated by an ObjectDataSource. I also have several DropDownLists filtering the ObjectDataSource. I found a link providing a way to export a DataSet (or DataTable) to Excel here:
ow I can ensure that filters applied to the ObjectDataSource when the method is called are applied. In short, how can I ensure what the UI is displaying is what the file will include when exported?
how do i copy required row in dataset to a new dataset. i have bind a xml into a dataset and i need to display say row 3 to 5 only so i do a for loop but i have encounter problem when trying to copy the rows to a new dataset.
do i have to write the xml to datatable and bind it to dataset and from there copy over ?
I am trying to populate a gridview using two tables. I also have a strongly typed dataset and used the method on this page: [URL] the problem is that, when i try to use two table the gridview does show up (I checked through debugging that the datatable comes back as empty).
I want to define SelectParameters for my SqlDataSource in markup and then assign values in code, but when I use the syntax:
[Code]....
It works the first time, but won't let me re-add the parameters on subsequent postbacks.
I can't use ControlParameters in this case because the values in the controls are loaded from xml files and some minor parsing needs to be done to the values before they're passed to the database.
If ispostback = false then dsDataSet = ..... END IF
Now I have a button where when clicked..
dsDataSet = anotherdataset...
Now I have 1 button that all what it does is loop through the dataset..
For each row in dsDataSet.tables(0).rows
Now the problem is that when I click on the last button, it says (cannot find table 0) which means the dataset is empty, why does the info in the dataset get removed on the postbacks? how can I avoid this?
This code returns MdaID and StateID, I want to assign them in this manner:
MdaIDLabel.Text = MdaID and StateIDLabel.Text = StateID, but I am not sure how to separate the two values and then to assign them as I have indicated above. Since my function has a "void" return -
MdaIDLabel.Text = GetMdaState({0}, 64114);
StateIDLabel.Text = GetMdaState({1}, 64114); - will not satisfy the requirement.
I am working with VS 2008 VWD, .NET 3.5 SP1, C#, SQL Server 2008 Express
My doubt is I am using a grid view that displays the content of many tables. i am using sql server 2005 for that. In a gridview column i have to display an appropriate image which will show when the value of another column and its row is having value as "Available". If the value is "NotAvailable" then the image column in gridview will show another image. How am i suppose to code it in three tier architecture.
I have a gridview bound to a sqldatasource with editing enabled. If I click Edit, then either Cancel or Update, the update or cancel occurs and the Edit button reappears. However, I cannot then click the browser's back button without having the Update and Cancel buttons reappear. A second click of the back button takes me to a state where the Edit button shows again, *then* another back button click will take me to the referring page (the one before the one with the gridview on it.) IOW, it looks like the postbacks are cached. How can I prevent this and have the back button go straight to the referring page?
I'm gonna outline the application roughly: it's a tool, where people can upload a CSV-file, which contains their data for some crazy water-plant-biology-stuff. ;) The job of the application is (besides others) to validate their entered species. So far no problem, I've got my string-array with the correct species abbrevations, and i can parse the species names from the user-edited CSV-file.Whenever a species is found, that is not part of the reference-array its being sent to a GridView as a new row. All of the above works fine - if anything isn't explained well, just ask.
Now, what I want to do is to give the user a simple edit-function: beside the WRONG species name, it would be terrific, if there was some sort of drop-down-list, filled with the correct species names (which are stored as a string-array in my .cs-file!). The user looks at his wrong species, then just has to select the correct name from the drop-down-list, either updates row for row, or even better: edit every row, and update once at the end. Is this possible? I remember that it's quite easy to fill template-fields with data through SQL-connections etc, but is there a more simple way to do it? As said, I've got a fine string-array in my .cs-file behind the aspx-page.Haven't found any code for this. Are template-fields in the Gridview the right way?
Which might be a solution for the updating-problem: I keep storing the wrong names in the rows, and just add another column next to the species name, where this drop-down-list should appear. Then i add a button, which, when clicked, gets the old value & the new selected value for each row, and updates the data. Should work? So the problem remains: how do I add a template-field with many (<500) items in the .cs-file to a GridView-Column?
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;
I get the error 'Input string was not in correct format' currentID is an integer var. When I hover over the GridView_ABC.DataKeys[0].Value it is """, it should be an integer.
Newb question: what is the standard practice for assigning roles to newly signed-on members. Is it usually manual or is there a way of automatically assigning roles. Being completely new to this, I am confronted by the issue of my site having three different roles that new members could fall into, but am unsure about how to assign each a role. I can't imagine having to go through the process manually if I have thousands of members.
I have a dataset stored as a CLOB field in an Oracle table. I want to be able to pull this field out and type it back to a dataset. Is this possible and if so how?
In myapp, I can create two datasets: [dstServer1] and [dstServer2]. They are coming from two tables which are in two different SQL server: [Order1] (in server1) and [Order2] (in server2). These two tables have the same data structure. How to code to compare two dataset and then insert difference into another table without using linked server?
I have a problem, I need to get a date from an SQL database using a dataset.xsd.
To do that, I have created a query in the TableAdapter called GetDataByFecha:
SELECT fecha FROM T_Tickets WHERE(fecha = @fecha)
in C# I do this:
DateTime T_fecha;
T_fecha = Convert.ToDateTime(ticketsAdapter.GetDataByFecha(fechaTicket)); but, when I compile it I get this error: cannot convert a 'T_TicketsDataTable' object to 'System.IConvertible' type.
I have dataset which is called at page load event. Also every time i clicked on refresh it will call refresh function where it store updated values from database.
Now I want only updated fields row and want to store into datatable or another dataset.
I dont want to cmp each and every iteration of the dataset. I used Getchanges() of dataset but not working.
