i have a record of a gridviewrowcollection. and i'm having issues with adding them to the grid.
GridViewRowCollection dr = new GridViewRowCollection(list);
StatisticsGrid.DataSource = dr; doesnt work.
StatisticsGrid.Rows
does have an add method, what is strange
how can i add a gridviewrowcollection without creating a datatable + binding it to the datasource?
I've coded a GridView in the markup in a page. I have coded a DataTable in the code-behind that takes data from a collection of custom objects. I then bind that DataTable to the GridView. (Specific problem mentioned a couple code-snippets below.)
GridView Markup:
<asp:GridView ID="gvCart" runat="server" CssClass="pList" AutoGenerateColumns="false" DataKeyNames="ProductID">
<Columns>
[code]....
Goal: I'm basically trying to find a way to update the data in my GridView (and more importantly my cart Session object) without having to do everything else I've seen online such as utilizing OnRowUpdate, etc. Could someone please tell me why gvCart.Rows is empty and/or how I could accomplish my goal without utilizing OnRowUpdate, etc.? When I execute this code, the GridView gets populated but for some reason I can't access any of its rows in the code-behind.
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "UPDATE M_t1 SET c_name=@c_name WHERE id=@id";
cmd.Parameters.Add("@id", SqlDbType.Int).Value = (Label)Convert.ToInt32(grdmsal.Rows.FindControl("Label1").Text);// //(Label)grdmsal.Rows.FindControls("Label1").Text;
cmd.Parameters.Add("@c_name", SqlDbType.VarChar).Value = ((TextBox) grdmsal.Rows[e.RowIndex].Cells[2].Controls[0]).Text;
I am using above i have a id field based on which i update the records. I dont want to display the id field to user the user just clicks edit against the row to be edited & should be able to edit above I get error nr find control
<Columns>
<asp:CommandField HeaderText="Edit-Update" ShowEditButton="True" />
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="Label1" Text='<%#Eval("ID")%>' runat="server"></asp:Label>
</ItemTemplate>
<asp:BoundField DataField="c_name" HeaderText="Name" /> </asp:TemplateField> </Columns>
I want to add a webusercontol which contains a textbox and a label to the gridview control. I am binding a gridview with a datatable dynamically.
Here is my code:
@ Register Src="CompareBox.ascx" TagName="CompareBox" TagPrefix="objCompareBox" %><br>
<asp:GridView ID="grdfoneBoxContainer" runat="server">
<Columns><br>
<asp:TemplateField HeaderText="User control"> <br>
<ItemTemplate><br>
<objCompareBox:CompareBox ID="CompareBoxCol1" runat="server"/><br>.......
txt & lbl are two properties that are declared in WebUserControl but it's giving object reference error .
I have a gridview with five rows and an unknow number of columns. What I want to do is in row 1 I want each column to be a textbox and in the next row create a button/link to create a report for each column. My problem is only the last column is being changed to a textbox.
HTML Code:
Protected Sub gvReport_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles gvReport.RowDataBound
Dim link() As String
Dim tb8 As New WebControls.TextBox
If e.Row.RowType = DataControlRowType.DataRow Then
[Code]...
I have a CheckBoxList that is showing all A table C column.
SELECT DISTINCT C
FROM A
ORDER BY C
My A table has two columns.
B-->Primary Key
C--> Every C has a unique B.
I have an SQL like this for my Gridview Source;
Select <...............>
From <..................>
Where <.................>
AND A.B IN
(Select A.B
From A
Where A.C IN ALL CheckBoxList.SelectedItem.Value)
Something like that. My SQL syntax isn't very good. I hope you can tell what I want..
What I REALLY want is, when I click a button, Gridview should be populated according to the SQL , BUT filtered by what is selected in CheckBoxList.
Is there any way to add a parameter in the SQL IN clause?
I'm trying to inherit the GridView such that I can add a collection of filter properties which can be shown at design or altered at run time which would be like:-
Is there a way to do this in asp.net 2.0 GridView.
I have a GridView that displays the results from a Query that is Databound.
How can I manually add a new line or row after the Query does its databind, so that it will display in the GridView.
e.g. One of the column names is "FirstName", I'd like to add a new row in the "FirstName" column with a value of "Test".
I'm populating a GridView with data from an Excel sheet. I'm using some code from MSDN that grabs the data via a range.
VB.NET Code:
Public Sub GetExcelData(ByVal gv As GridView, ByVal path As String)
' Define variables and default values
Dim i As Integer = 0 Dim j As Integer = 0
' Create connection string variable.
Dim strConnection As String = "Provider=Microsoft.ACE.OLEDB.12.0;" _
[Code] ....
Which works great. I have different areas of the intranet where I'm using this. The first page only needs to read the plain data from the Excel sheet. But, now I'm trying to read the data, but also keep the links that are within the sheet.
The data that is populate basically looks like this:
#1 Name Link1 Link2
#2 Name Link1 Link2
#3 Name Link1 Link2
But the links aren't kept. So, how I can accomplish this.
There might be an easier way, but this is what I was thinking. The links correspond to PDFs on the server. When the data loads, I could loop through the list and dynamically change each "link" cell to a hyperlink. The problem is matching up the link to the PDFs. The name of the PDFs aren't exactly the same as the name in the cell. So I'd have to create another table or something, that could reference that data. A Select Case would work, but that's super time consuming and I have to make this as seamless to update as possible.
So I'm not sure I want to do that. If I could just maintain the links as the data has bound, that'd be awesome. But I have a feeling that won't be possible. My searches are coming up short so far.
I was wondering if it is possible to add additional data to Excel document created from gridview. What I want to do is to manually add data to certain rows and columns (date, couple of titles, etc), but I'm not sure how to do it.
Currently I'm using the following code:
[Code]....
I have seen code for adding columns at runtime but here is another scenario for you. I am using a SQLDatasource control for my gridview. And the data returned can have different columns based on the filter meaning one time I may have a column A1, A2, A3 and another time I may have A2, A3, A4. Is there any way I can look at the columns when it is binded at the beginning and add the columns first?
I really need to use the SQLDatasource though because I am connecting to an AS400 and it is using a connection already made in the webconfig and do not know any other way. I do if it was MSSQL server but not this.
I am trying to add a new row into a gridview but for some reason i'm having a problem in the for loop.
Directly goes to dtCurrentTable.Rows.Add(drCurrentRow) and of course, have an error "'row' argument cannot be null.
Parameter name: row", because the dtcurrentTable.NewRow was not executed.
Why is this happening?
Private Sub AddNewRowToGrid()
How can i stop of adding blank emply rows on my table, every time i click on the button to add row on one table of sqlserver?
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Using connection As New SqlConnection("Data Source=.SQLEXPRESS;Initial Catalog=teste1;Integrated Security=SSPI;")
Using command As New SqlCommand("INSERT INTO TABELA1 (UM,DOIS,IMAGE)Values(@UM,@DOIS,@IMAGE)", connection)
'Configura os parâmetros.
command.Parameters.Add("@UM", SqlDbType.NVarChar, 20).Value = Me.TextBox2.Text
command.Parameters.Add("@DOIS", SqlDbType.NText, 50).Value = Me.TextBox3.Text
command.Parameters.Add("@IMAGE", SqlDbType.VarBinary).Value = ConvertImageToByteArray(PictureBox1.Image)
TABELA1BindingSource3.ResumeBinding()
connection.Open()
command.ExecuteNonQuery()
End Using
End Using
Paulo
How do I do this? Basically, next to the page numbers in the GridView I want a link button to disable paging. This works, but I want the button inside the footer of the GridView, next to the page numbers.
View 2 RepliesI'm having an issue with trying to add a button to my grid. My GridView is first loaded with data in the PageLoad event.
I'm then taking the data in the first cell of each row, and creating a button that will link to a URL. To get the URL, I have to run a query with the data in the first cell as a parameter. I was doing this in the RowDataBound event at first, but hitting that query for every row was making it really slow.
So I decided to add a button that would retrieve the URL only when you clicked the button.
Here's my GridView:
[Code]....
The grid generates fine, the button gets added to the grid for each row. But when I click on it, the RowCommand event doesn't fire, and the page just refreshes.
I have written the piece of code below to get a productID from a gridView when the user clicks on the select link.
Convert.ToInt32(GridView1.SelectedDataKey.Values["productID"])))
However, if a user clicks on this more than one click the newer value replaces the previous. Is there a way to keep adding to the cart list when the user clicks on a new item?
Edit:
Here's my code for the Shopping Page:
[Code]....
I dont know if the location of creating the list is important? Wasn't sure if it was placed in the click event if it would keep creating a new instance?
Then for the Basket Page I have:
[Code]....
I am working with Gridview control and I am also adding radio button to each row in ASP .NET.
Here is something that I would like to accomplish but I am not sure how this should done. The problem is that I have add a muliple datarow insie of the each gridview. Something like below.
So, some cases I have add a row with two rows like the example. And, the ID eventurally will be radio button where user can click.
I want to add a new row to gridview.
View 5 RepliesWe are developing a website in which we have a gridview where we have added a hyperlink field to navigate to another web form. Here we have to enter a particular value from the gridview to session in order to display it in another web form as a label.As we are bit new using .Net, could any of you guys please help us in finding a solution.
View 1 RepliesI am using subsonic in asp.net forms C# and I have an instance where I need to loop through a recordset and for each one call the Database to get specific information from a view about that record.
in this instance it is a venue, loop through and for each venue I show there spend and there budget, but I am at a loss as to how I can say use a gridview, execute more code on each row and then add more columns to that row.
just as an update i have been playing with the idea of something like this:
DataSet ds = new DataSet();
ds.Tables.Add(LinqToDataTable(club.All().Where(x => x.level == 1)));
ds.Tables.Add(LinqToDataTable(ViewBudgetSpend.All().Where(x => x.periodfrom == curperiod)));
DataRelation relation = new DataRelation("budgets",ds.Tables[0].Columns["clubId"],ds.Tables[1].Columns["clubid"]);
ds.Relations.Add(relation);
still working this out though.
I have a situation where I needed to add a row to my gridview. So say I have rows 3, 4 and 5.
My Datakeys are defined as "ID, CostingID". I did that so I can reference the two ID values I need when saving records.
here is the code in my RowDataBound event.
Basically if it is a datarow, I'm adding the value dataitems so I can get a sub total in the footer row.
Then, I have a boolean field called isDisbursement. So I sort my data by that field. So all records with the disbursement flag as true will display first.
Then as soon as the disbursement flag hits false I add a row to display the Total of the disbursement records value field.
All this works. My problem is, because I added a row at index 4 it inherits the datakey of the row that was at index 4 before. So when I'm looping through the grid rows to save the values I'm having a problem. I've attached an image so you will understand better what I'm trying to achieve. The "Total Disbursements" is the row I added. But it gets the following rows datakey because it is now at index 4.
when I do this, as soon as I reach row 4, although it doesn't have a CostingID it gets the CostingID of row 5 that used to be row 4:
Code:
Dim CostingID As Long = Convert.ToInt64(Me.grvCostings.DataKeys(row.RowIndex).Values("CostingID").ToString)
Dim strValue As String = CType(row.FindControl("txtValue"), TextBox).Text
Code:
If e.Row.RowType = DataControlRowType.DataRow Then
If Not IsDBNull(DataBinder.Eval(e.Row.DataItem, "value")) Then
_SubTotal += Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, _
"value"))
End If
[Code] ....
I edited my gridview template by adding an additional column of checkbox and to its header
I managed to do a checkchange for select all or none and for selecting single of multiple checkbox.
My problem here is that when I try to select all, uncheck another checkbox, the header checkbox is still checked and the unchecked checkbox becomes checked again.
If i did not check my header checkbox and just check it normally, its fine.
I have gone through the article "Preserving state of Checkboxes while paging in ASP.Net GridView Control", this is great one and works fine with one gridview on the page but in my case I have 2 gridviews and I am unable to preserve state of first gridview after clicking in second gridview.
View 1 Replieswhile a new row is adding in gridview, the data is binding only new rows. the old rows are not coming.Data is coming from the profile properties.Add new row command event is listed below
bool isUserAccountCreated = false;
UserProfile profilenew = new UserProfile();
if (e.CommandName == "AddNew")
[code]...
I am trying to add an image overlay of a cell within a data bound gridview cell in ASP.Net (C#). The effect is designed to have a string within the image that is going to sit on top of the image that is pulled from the server.
IE: Database contains path to images. Data grid is pulling these images in based on the ID of the items in question. I need to pull the price from the database and lay it onto an image that is placed over the data bound image cell.
SQL Statement gets results.
Results contains path to image for items.
Items are sometimes on sale, so a special overlay is needed.
Overlay will have a varying price overlaying it.
I tried to break it down into easy portions. I am not sure if I am over thinking things or not but I can't find a feasible way to do this. The data is converted to a table due to the data grid control in ASP.Net, and there isn't any way to determine the IDs after the table is created.