C# - Programmatically Add Rows To GridView With Predefined Columns?
Feb 22, 2011
Given a GridView control defined like this:
[code]....
The "FilePath" and "AttachmentID" fields are being set correctly in the grid, however, the CheckBox control is never set correctly; it is always unchecked.
My question:
How do I get this CheckBox field set from C# as I'm creating the new row?
P.S. I am not sure if I am creating the row correctly in the first place.
I have a gridview with predefined columns and a selectcommand. Why do I get the columns twice? I want to keep the predefined columns and the selectcommand, but avoid getting the columns double.
I'm binding a gridview from a webservice with 30 columns and 10 rows, I need to print the same in a PORTRAIT, for that i decided to display columns as rows and
I am trying to set the top gridview's column's width to the body's column width and then the left columns height to the body's coloumns height. Here is my code:
I've got a grid view on my form that is bound to a data table at run tim. The data table is returned by a function rather than direct from the DB so I can't set the datasource at runtime.
I bind the grid in the page_load event like this:-
Code: Dim _dt As System.Data.DataTable _dt = _srvc.GetVinylShutters(0) _dt.Rows.Add(_dt.NewRow) grdShutters.DataSource = _dt grdShutters.DataBind() (_dt.Rows.Add(_dt.NewRow) is just there to add a blank row in, otherwise I wasn't seeing any columns at all)
I've then got the following snippet which I want to use to hide some underlying columns:-
Code: For Each col As DataControlField In grdShutters.Columns Select Case col.HeaderText Case "OrderID", _ "ShutterID", _ "ModelID", _
[Code] ...
The thing is, wherever I put this it doesn't seem to hide the columns. If I break into the code I can see that grdShutters.Columns.Count equals zero althought I can see that the bound datatable has 38 columns.
I've tried the Page's Load, LoadComplete and PreRenderComplete events as well as the gridview's DataBound, RowDataBound and RowCreated events. I get teh same result in all of them. The grid doesn't actually have any columns until it appears on the screen.
I am trying to set come columns to invisible after all of the rows are binded but I'm having trouble. I'm hiding columns that have empty data which I save in a session variable. This works fine. Then I tried changing the columns visible property using the ColumnByName routine in the DataBound but that must be the wrong event because I do not think the columns exist yet.
The columns are autogenerated btw.
Where can I set the columns properties after it has binded? Can i do this before the columns are autogenerated the the screen itself?
I'm trying to freeze columns in gridview where grid has static height and all rows are rendered(no paging and scroll var is visible).I only managed to add scroll through content by overflow property,but this time all columns are scrolling as well.My task is to freeze columns while maintaining column width.Let this be my grid
<div style="height:200px;overflow:auto;"> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" UseAccessibleHeader="true or false">
I have been looking at this article: [URL] However, I have a question: Can't this be used with a sqldatasource, instead of binding the gridview behind? If so, how?
I have a couple of things that are not working with my Gridview:
1) I've managed to display 3 columns in one column (see code above) but the data is separated by commas, how can I display each data item in separate rows.
2) How can I make the data unique, as I have added the distinct command which I configured in my SQL data source
3) I need the rows to not display nulls, but at the moment it isn't displaying the row if one of the columns is null?
I created a gridview that is made up of 4 gridviews and using a stored procedure to populate it. I create columns at runtime because the number of columns changes all the time.To make the grids editable I am adding template fields at runtime as I create the columns, this is to ensure that a user is able to edit the cells and some foot values update. Reason why I have four grids is to freeze rows and columns like in excel using javascript. The problem is that performance is very bad especially in IE, the grids take a long time to load. I am not sure if this is caused by the data load or the creation of text boxes. see some of the code below for my _aspx page:
I'm working on setting up a Gridview that dynamically creates new "columns" after a set amount of rows. To do this, I bind a datasource to the Gridview and then add new cells and shift the other items into those cells. I seem to be having an error with the link buttons that I move around. All of the items get put in there correct location, but for some reason, when I click a link button that has been added to a new cell, the sender's text is the LinkButton in the original cell's text. Does anyone know why this would be happening? Is the gridview not meant to be manipulated after it has been data bound? This is the code that I use to update the gridview.
I have made a table programmatically with rows and cells. In the cells there is textboxes. This work fine until I want to make one of the textboxes Multiline:
[Code]....
I got this error:
'Multiline' is not a member of 'System.Web.UI.WebControls.TextBox' So I found out that the textbox as to be a System.Windows.Forms.TextBox() Then I got this error: Type 'System.Windows.Forms.TextBox' is not defined.
I am looking to 'hypothetically' post nine rows of data with column headers for 15 different columns. That would be too many textboxes. All the data is directly calculated in VB.net. I want to insert some sort of spreadsheet-type deal with the tool "Table" or something I heard about "Gridview?".
i want to make a datagrid with 2 columns and many rows the columns i want to have databinding with a datatable
i want the 1 row 1 column of datagrid have data from 1 row of datatable i want the 1 row 2 column of datagrid have data from 2 row of datatable i want the 2 row 1 column of datagrid have data from 3 row of datatable i want the 2 row 2 column of datagrid have data from 4 row of datatable ...... ......
i use something like this
[code]...
but i have two times the same in tha datagrid left and right