I want to insert an extra row in the gridview in the RowDataBound event (or another place if thats possible). How can I do that?
The data in the row to be inserted is not part of the resultset, but rather to split the gridview in logical sections.
I am trying to insert manually new items in a Listview control using objects. The item seems to be inserted, but when the page is sent back to the browser, there is nothing there. Here is the code that I am using:
[Code]....
I can assign a list of object to the datasource, but when I try to input a new object to the list of items from the ListView, it doesn't work.
I have a gridview with data. I want a button which is not part of the gridview. Then if I press a button the gridview is sorted by two colums. i.e column1 ascending column2 descending.
I am not looking to work with a Sqldatasource as I use a data access layer. So the sort would have to be from a datatable and databind or directly with the gridview.
I don't want to databind a gridview, I want to be able to add rows myself within c# code. I can see there is a GridViewRow object and wondered if I can use this to add/remove rows as required?
View 5 RepliesI am having a hard time updating from my gridview based the value that I am setting in the datakeynames it is the Ucc field I keep getting and index out of range exception on the e.keys[0]. I have done this before so I am confused what I am missing here.
View 8 RepliesI m having a gridview and Next and Previous button below gridview. If I click on next, I want to highlight the next row.
If i click on Previous, I want to highlight the previous row.
Example. I need to manually call the test_RowDataBound event.
[Code]....
I tried this as I've used with buttons in the past.
button1_click(this, EventArgs())
but it dosen't work
I have a gridview that I am manually binding in my code behind page because I have to pull out information from other sources for the WHERE clause.The issue is that I get an error on the aspx page that one of the columns is not in the dataview, however when I run the SQL statement in SQL all the columns are there and there is not a spelling error.If I remove the column from the gridview then the page loads.I cannot see why the column is a problem.Here is my ASPX gridview code.
[Code...]
This is the line where the error occurs. <asp:Label ID="Label2" runat="server" Text='<%# Bind("date_submitted") %>'></asp:Label> Here is the code behind
[Code...]
Here is the ending SQL statement that works in SQL and does return the date_submitted column. SELECT id, title, date_submitted, (SELECT username FROM users WHERE (id = t.submitted_by_user_id)) AS submitted_by, (SELECT name FROM departments WHERE (id = t.department_id)) AS department FROM tickets AS t WHERE (closed_by_user_id IS NULL) AND (department_id = 48 OR t.department_id = 83) ORDER BY t.date_submitted DESC
Can you add a row of data programatically and bind it to the gridview? If so, how?
I have a grid with 2 columns. One of these columns is a template that runs a function and delivers an output. Within that function I need to manually add data that is not present in the sqldatasource to the grid and use it when performing aggregate functions.
ColumnA - ColumnB
1 - MyFunction(1) - adds new row (1, B)and returns A to column B.
2 - MyFunction(2) - May return just A
Grid should look like
1 - A
1 - B
2 - A
Even though SQLDataSource only returns
1 - AB
2 - A
I've got a GridView control with LinkButtons in different cells. Currently when someone clicks a link, it fires the ItemCommand passing the CommandName and the ID of the item the link is bound to. That all works fine. I need to modify it now to not use links anymore. It now needs to show a popup balloon with a link (styled to look like a button) and when the link is clicked, I want it to do the exact same thing. I'm sure there are several ways of doing this, but for time's and consistency's sake, I'm copying the method used from another page we have that is already doing this. It has a hidden DIV on the page with the link in it. When you hover over a link, javascript repositions the div and makes it visible.
So what I need to do is pass my CommandName and item ID to the javascript so that it can trigger the postback when they click that single link. I know this is not the only way to get to the end result, but what I want to do if possible, is still fire the GridView's ItemCommand and set he DataListCommandEventArgs' CommandName and CommandArgument properties. Can someone explain how, under normal circumstances, clicking the LinkButton in the GridView fires the ItemCommand? I know that the LinkButton's click event is forwarded to the GridView but what gets sent from the client side that let's the server know the link was clicked?
how to edit data in grid view manually without auto generate in gridview + ajax.
View 4 RepliesI have a need to call Oracle stored procs to populate a gridview. I'm able to call one stored proc to get the column header text and another one to get the corresponding data. Currently I'm using a datareader, but I want my gridview to have sorting and paging enabled, so likely I'll need to read the data into a datatable and then bind the gridview to it.I've never had to manually configure a gridview - usually just use autoformatting.1. Do I essentially set up the columns manually in the gridview since it has no data to go off of in design mode? I'm guessing most of these will be Bound fields. A few of my columns are going to display date values that need to be formatted a certain way
and one column will be a link that needs to call a second method to populate a different grid. I'm not sure what the syntax for this is.
I have a GridView with bound columns, for which I am manually setting the ItemWidth and HeaderWidth to 500px, and nothing happens. Is there some trick to getting this to work?
This is a column a large amount of text in it, and it keeps sizing to the width of the header text, which is simply "note". I don't want to set Wrap to false, becuase then the colummn could be thousands of px wide in cases.
I have tried a few different ways to add columns of data to a gridview. I have just about got success, except for I am having problems with only getting the last value in my array of data to insert into the gridview column. For example if I return 4 rows from an sql query, with the values of 2, 4, 6, 8. The last value (8) shows in all for rows of the gridview for that particular column.
View 8 Repliesnot quite sure where I'm going wrong here. I'm trying to manually handle sorting in a Gridview that is populated with the following data source:
[Code]....
[Code]....
[Code]....
At the moment, nothing is happening when I click on the column headings. I ran it in debugging mode in Visual Studio and put a breakpoint on the Sorting event handler. I noticed that the variable dtSortTable is empty even after the TryCast(VacanciesGV.DataSource, DataTable). If I hover over this statement in debugging, it shows the data from the file system, so it does appear to be reading it.
I have a SQL table containing a timestamp column. This table is displayed in ASP using GridView control. The timestamp column is indicated in the DataKeyNames property of the GridView. I'm using TemplateFields for all columns and a ItemTemplate HiddenField control connected to the timestamp column using Eval.
<asp:TemplateField
ItemStyle-Wrap="false"
Visible="false"
HeaderText="timestamp"
SortExpression="timestamp">
<ItemTemplate>
<asp:HiddenField
ID="gv_hid_timestamp"
runat="server"
Value='<%#
Eval("timestamp") %>'
></asp:HiddenField>
</ItemTemplate>
</asp:TemplateField>
The data is displayed properly. I'm trying implement the optimistic concurrency in C# using the value of above mentioned timestamp and a stored procedure. The SQL stored procedure expects the @timestamp as varbinary(8). I'm not sure how to pass the value of gv_hid_timestamp back to the stored procedure. I'm using the following:
command.Parameters.Add("@timestamp", SqlDbType.Binary).Value = Byte.Parse(((HiddenField)gv.Rows[row].FindControl("gv_hid_timestamp")).Value);
resulting in the following error: "Input string was not in correct format." (I also tried different data types but with similar result). I want to be able to pass this parameter programmatically from C# and not have to specify it on the UpdateParameters list.
I am trying to insert a buttonfield at the end of the datagrid. I am using the following code. However, it is getting inserted at the beginning of the datagrid.
DataTable consolidatedDataTable = PortfolioManagement.Portfolio.GetConsolidatedPositionsDataTable(userName, portfolioName);
gridViewConsolidatedPositions.DataSource = consolidatedDataTable;
gridViewConsolidatedPositions.DataBind();
ButtonField buttonField = new ButtonField();
buttonField.Text = "Hedge with Stock Options";
gridViewConsolidatedPositions.Columns.Add(buttonField);
gridViewConsolidatedPositions.DataBind();
I want to use a radio button selection on a GridView. I can get this working with a regular DS. However, my table is manually DS'd. When the page frame holding the GridView is loaded, I trigger that event to fire off the subroutine that loads a DataTable and adds the DataTable to the DataSource of the Gridview.
The Gridview has a radio button in the first column as the "SELECTED ROW" appearance. Whenever I run the onchange event code for the radio button, I try and fix the radio buttons so only one row is selected with the following code:
[Code]....
This code works fine with the gridview if its got a built in SQLLDataSource. However, with my manual assigning of DataSourcing to the Gridview on Frame Load, I believe the gridview is being reinitialized everytime and I'm loosing the state of the radio button. I don't believe I can use the IsPostBack() because sometimes this frame and gridview will be showing sometimes it won't and yet other times it will need to be "recreated" with new data dynamically within the page. However, I tried to use PostBack and it looks like its working until I try and do a sort...than that crashes.
[Code]....
When I click on Sort, it crashes here
If (mydata.Rows.Count <> 0) Then
(its complaining about it being "null")
[Code]....
I have a GridView which works perfect when it is not empty. Now when the source is empty I want to show an empty GridView and to be able to insert rows inside.
I have this code for the page_load event:
[Code]....
but I got the following error:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
I am trying to fetch value from text box outside grid view to the footer row of the grid view.
View 7 RepliesIam using the Gridview control for inserting the records in Database i placed the controls in TemplateField tag like Textboxes and DropDownlist but when page executes nothing is displaying in the control Is there any way to get it work or i must have to define the datasource for the Gridview Control????
<asp:TemplateField ...>
<ItemTemplate>
<asp:DropDownList ..../>
And more textboxes like the above way but there is no Bound Field because iam going to insert the record in DB while placing the controls in Gridview Control
I have a table in my sql datablase with this items:
ID URL
.............
I need to populate programatically a GridView with that table but I need to add the string "http://" in the row URL to get something like this:
ID URL
..................
I have a gridview with 3 columns dropdown, textbox1, textbox2.
On pageload my gridview loads with one row i.e dropdown with databinding done with some values, empty Textbox, empty textbox2
i have add new row button
clicking on that i will get new row in gridview with dropdown with databinding done with some values, empty Textbox, empty textbox2
I have save button to save the gridview rows into DB.
Question:
I should not allow user to select same dropdown value in two different rows. How can i validate that.
I have a data bound column in grid view. When a particular value in a cell is getting processed I want to display an image in the cell.
View 2 Replieswhy if I write the following SQL SELECET under gridview or details view I statement get all the data under thelogin name :
SELECT * FROM CustOrder WHERE (CustomerName = @UserName)
While if I write the following INSERT statement it save all data but it does not save the
login name to database:
INSERT INTO CustOrder
ItemName, ItemPrice, Quantity, CustomerName, Status)
VALUES (@Username,@ItemPrice,@Quantity,@Username, 'New Order')