public DataRow
GetItem(ENTITY_TYPE
EntityType, long EntityID)
This fetches a row and returns it. Pretty simple.
However I can't test in the method to see if the row was fetched, as the method has to end with:
return ds.Tables[0].Rows[0];
If the row wasn't fetched, this errors as there is no row at position 0.
I can't do this:
DataRow dr;
if (ds.Tables[0].Rows.Count
== 1)
{
dr =
ds.Tables[0].Rows[0];
}
return dr;
.. because then I get an error that I can't return an uninitialised variable (dr).
I can't stipulate what the columns are and return a "blank" DataRow as far as I can see, because it's dynamic so I don't know what the columns will be. There doesn't seem to be a way to instantiate the DataRow return var except by assigning, er, a DataRow. Which I may not have.
I don't really want to switch to using the ItemArray and pass arrays about, I'd rather just pass the DataRow object as this is in a loop which might process a lot of rows.
I have a form which a user can fill in x times with the data they want too. The form is posted to the following Action.
[HttpPost] public ActionResult Manage(ProductOptionModel DataToAdd) { if (!ModelState.IsValid) { return View(DataToAdd); } var ProdServ = new ProductService(); if (DataToAdd.ID != 0) { //Edit Mode. DataToAdd = ProdServ.EditProductOption(DataToAdd); ViewData["Message"] = "Option Changes Made"; }else { //Add DataToAdd = ProdServ.AddProductOption(DataToAdd); ViewData["Message"] = "New Option Added"; } var RetModel = new ProductOptionModel() {ProductID = DataToAdd.ProductID}; return View(RetModel); }
So at the bottom I blank the model (Leaving just the required field) and then return to the view. However the view holds the data from the previously submitted form. I have debugged the code and checked that the RetModel variable is empty.
I have a DataTable that's populated with Data. I'm looping through it and checking to see what the contents of the first cell of the first column are. If they have the same value on the current iteration as the previous, I want to insert a blank row into my DataTable. The problem is that the new row is being added to the end of the DataTable instead of between the two rows. How can I get it not to append the row to the end. This is what I'm doing:
I'm fairly new to ASP.NET and am working through a tutorial that demonstrates the use of DataAdapter, DataTable, and DataRow classes. The tutorial focuses on binding returned DataTables to GridView objects - I'm having trouble understanding what to do to extract one row for display. I've found I can do the following:
A ProductsTable should be able to return its own ProductRows w/o resorting to a cast, no? Can't find how to do it otherwise. I'm thinking how to go about creating a form where the user will only ever be working on one record at a time. Wouldn't it make sense for the DAL to return a ProductsRow instead of a ProductsTable?
Ok so I am trying to setup a WCF web service. I thought I had my .svc and webConfig ready to go, but when I hit this service all I get is a blank page.
I have taken a DataTable control and have added colums to it. Now i want to add rows to that DataTable but when i am trying to create a DataRow of DataTable, an error is generated, showing "Value of type 'System.Data.DataRow' cannot be converted to 'dataRow'".
We have a web project that contain its business methods in a class library project called "Bll.dll" some methods of Bll.dll return List<> ... from a source - that i don't remember now - told that returning Collection<> is better than returning List<> Is it a valid ? Note that i don't make any process on values returned from BLL methods .. just view it in a web page
[url=http://www.upanh.com/upanh_untitled/v/6tu4czcr7sd.htm][img]http://ca7.upanh.com/16.993.21338424.vtS0/untitled.jpg[/img][/url] [code] private Controller ctl = new Controller(); ..... DataTable db1 = new DataTable(); ArrayList arr1 = new ArrayList(); arr1 = ctl.getAlljob(); db1.Columns.Add("IDjob"); db1.Columns.Add("product"); .... db1.Columns.Add("report"); foreach (Job j in arr1) { DataRow dr = db1.NewRow(); dr["IDjob"] = v.getjobid.ToString(); .... dr["report"] = "Report"; <=== it show "Report" but i want to it show as report linkbutton db1.Rows.Add(dr); } GridView1.DataSource = db1; GridView1.DataBind();[/code]
I want to find out the bound datarow or datatable of a datagrid on postback. I have a ButtonColumn in the grid. On click of the button, I'm trying to determine the datarow so that I can access the primary key and pass it to another page. The primary key is not bound and therefore not visible in the row.
For example I have a list of Customers, with an edit button. On clicking of the edit button, I want to open CustomerEdit.aspx?id=10. I am able to trap the click event on the server side in the DataGridCustomer_ItemCommand event. But am not able to get access to the datarow of the e.Item.ItemIndex.
On postback I'm NOT binding the datagrid. On accessing DataGridCustomer.DataSource, I get "Nothing". Is there a way to get the DataSource or the Datarow?
I have a problem with assigning string array into Datarow. Firstly, i have created the object for string array and put 2 values in the array out of 100(whole size). How many values should be placed in the array dependds on a different, which i am not showing here, though.
Then i tried converting into DataRow. But it says. "object reference not set to an instance of an object"
DataRow dr = null; string[] strconcat = new string[100]; dr["concat"] = strconcat[i];
Edit-- Actually i was trying put these string array values into dropdown (ddchooseadeal).
have 5 datatables and will add up more, what i need is to copy the content(rows) of the each and every datatable in a separate datatable. All the datatable columns are same. Is that possible without foreach statements. We can achieve the results in foreach but the datatables will contain more rows, so iterating each and every datatable will affect the performance.he code i implemented is exact thing i need, but without foreach statement. To copy content of each and every datatable and put the content in a final datatable
DataTable dat = new DataTable(); DataRow Dr = dat.NewRow(); dat.Columns.Add("c1", typeof(string)); Dr[0] = "01"; [code]...
I have a few procs which use a datareader as illustrated below:
[Code]....
In the real scenario there are many more fields than the 2 in the example so each time I make a change to BaseClasses.Subscription I have to change code throughout. I already have a method which converts a datarow to BaseClasses.Subscription which I call like this:
public BaseClasses.Subscription RowToSubscription(dr)
It would be great if I could do it with the datareader too, something like this:
Right now I am using a grid control from ComponentOne which I have to stay with. When I click an link in the row which fires a grid_ItemCommand event one of the parameters passed is e As C1.Web.C1WebGrid.C1CommandEventArgs. I want to change it where I am selecting a row with a checkbox in a column and then click a button to process the row selected. So I need to get the value it is putting in e and pass that which is used in another sub.
Here is how e is assigned to "row" as DataRow.
Code: Private Sub grid_ItemCommand(ByVal sender As Object, ByVal e As C1.Web.C1WebGrid.C1CommandEventArgs) Handles grid.ItemCommand Select Case e.CommandName Case "Renew" ' Renew barcode Dim row As DataRow = CType(e.Item.DataItem, DataRowView).Row
How can i convert following sql guery to LINQ in C# ? I dont need all columns from both tables and the result set should be IEnumerable<DataRow>
select c.level,cl.name,c.quantity from dbo.vw_categories c left join dbo.vw_categoriesLocalization cl on c.level = cl.level and cl.language = 'en' where c.level like '000%' and c.level <> '000';
I have a manual binded grid view from a datatable. The datatable is also manually generated.
When I generate the datatable, I will have a datarow, and i was thinking to add a hyperlink the the last column of every row. I have something like this, but it just not giving my desired output.
I am reading the "TEXT" string from a SP that could contain up to a million char. It's a clob field. After the HTML converstion, the "TEXT" field could have no closing HTML bracket. I want to look for the last </P> and then add the remaining characters to "TEXT2".
foreach (DataRow dr in dcTruck.TruckNarrative.Tables[0].Rows) {
I use the code below to add a table with each datarow
Code: TableRow rowItem = new TableRow(); TableCell cellColumnInfo = new TableCell(); cellColumnInfo.VerticalAlign = VerticalAlign.Top; cellColumnInfo.Width = 600;
[Code] ....
It works, but it only add only 1 item per row. all i want to happen is it will display the first 3 on the first row and the 2nd 3 on the second row.. and so on.. How can I do that with asp.net?
