I'm trying to update some records in my table using the GridView Item templates. It's like this:
<asp:GridView ID="grdCursos" runat="server" CssClass="grdTable"
AutoGenerateColumns="False" DataKeyNames="CourseID">
<Columns>
[Code].....
how I can simply dynamically edit a cell in a gridview. i.e. Just click on it and type, and post the changes when I lose focus to the gridview?I have tried defining a cell as a template control (textbox) and get it to display and let me type in, but it does nothing beyond that. I cannpt even get the default value from the underlying dataset into that cell.
View 4 RepliesWhat im trying to accomplish is to try to edit a gridview by using the updating event but not sure how to do this. The way im populating the datagrid is putting it into a dataSet and using that as the dataSource and doing a databind. Here is my datagrid below.
[Code]...
All my collegue programmer asked me to do is disable the editing of a checkbox in a grid. I have tried to set the column to readonly, does not work, does not seem to have any effect:
dgvPatients.Columns(0).ReadOnly = True in the Load handler of the containing form.
The code happily goes to the compiler, but the GUI still allows editting.
And I tried catching the CellClick event, and in the handler do nothing. It gets there, but still it does, what it did, editing that checkbox. Propably some other event or the parents of the class event is still changing the checkbox.I used dgvPatients.CellContentClick I have also set the property:
In the properties, gridview, edit columns, select that column, bound columns properties, ReadOnly to true in the designer, it let me down. Still the gui lets the user change that check box. what I am doing wrong? My collegue will be in tomorrow, may-be he knows but it bites me this problem.I have searched on the internet, I have spend quite a lot of effort in it, and I am out of options now. What is this??
I have a searchbox and when I search for a record it is fine the records shows up however once I click edit on the gridview the page does a postback and all the records show back up with the first record selected for editing. How can I disable this post back or make it when I click edit all the records do not display again?
VB.CodeBehind
Protected Sub btnClear_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnClear.Click
txtSearch.text = ""
sourcegridview.DataBind()
End Sub
[code] .....
I have a series of GridViews in a Tab Panel - databound to a generic List of Business Objects.
The columns in the Gridview are all similar to the following:
<asp:TemplateField HeaderText="Company" SortExpression="Company.ShortName">
<ItemTemplate>
<asp:Label ID="lblCompany" runat="server" Text='<%# Bind("Company.ShortName")
[Code].....
I'm using an Access Database and want to do something that I didnt think would be that big of a deal...I'm trying to take update a database with a value given by the user. I am having no luck with this...basically all I'm interesting in doing is having a user choose a value and then hit an update database button that adds that value to its corresponding value in the database...This is for an inventory program..
View 5 RepliesI am editing BINary file and i need to parse some values from it without corruption of file, unfortunately I was try everything, but I dont know how to parse it on the byte level. I know how to read, write, search bytes from files but not how to parse it.
View 1 RepliesI am making a application that has the ability to edit values on a access database table. As a simple example, My table looks something like this:
Order Number Completed
2000 No
2001 No
2002 No
The application needs to edit the Completed columns. I have 1 text box, and 1 button in my form. You enter the Oder Number in the textbox and press the button. The VB application then needs to change the Completed to Yes in the database. Example, I type in 2002 in the textbox and press a button. The application changes Completed to Yes for this order number in the access database and saves/updates the database.
How do to Read values in DataGrid When user is editng the Cell
for Example:
Me.Text = Dgv.CurrentRow.Cells(6).Value
What im trying to achieve is editing the value of this key; But I've tried everything i can think of.. I've tried just entering the name and type etc. but nothing..I've decalred:
Imports Microsoft.Win32
and the code im attempting to use:
Dim regKey As RegistryKey
[code]....
What i want it to do is create a key from the Drive Selection box i.e. 'H' then create two sub keys called 'DefaultIcon' and 'DefaultLabel' and assign values to their (Default) key but its not working.
Here is my code
Dim dt As DataTable = New DataTable("Intervenant")
For Each column As DataControlField In grdvIntervenants.Columns
dt.Columns.Add(New DataColumn(column.HeaderText))
Next
[code]....
I am developing in ASP.NET using VB.NET as background code. I am on vs2008 with windows 7 enterprise edition.I have just restarted doing VB.Net and my first time using a gridview without a DataBase, so maybe I am missing something. Basically, I am trying to add a DataRow (dr) to a DataTable (dt) and then put said DataTable into a Gridview (grdvIntervenants).My first step is to take the gridview and put all its data into a DataTable. Then i create a DataRow(dr) that I populate with variables and I add said DataRow to the DataTable. After that, I put the DataTable as the DataSource and bind the GridView.
The problem is that my GridView shows the rows but they are empty.While debugging, I found out that this error was beside all the DataRow.Item:"In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user" Seraching for it on the net.I did not totally understand the error, so i tried many different ways of adding the data into the DataRow but to no avail. I also tried different way of adding the column thinking the index problem might be coming from there, but again, the problem persisted. Now, something I found weird was that the Item property of my DataRow gives the quoted error, but I see the values into the ItemArray of the DataRow.I also found out that the same error appears beside the columns property into the dataTable.When I try to access the data from the DataSource in my rowDatabound method using the DataBinder, it gives me null results...
how to create in many buttons and with events in runtime
how to get the gridview values in next form
[code]
Public Sub GridView1_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles GridView1.RowCommand
If e.CommandName = "Select" Then
[Code].....
I use GridView to show/edit data in the database. In the GridView there are two columns called mark1 and mark2. What I want to do is when user clicks update, the program should check if the values entered at mark1 and mark2 sum to 100. If they don't the program should cancel the update and show an error message. How do I do it? I use ASP.NET with VB.
View 1 Repliesi have three textboxes.After entering vales into the textbox the data should be displayed in gridview without going to the database.
View 2 RepliesI have a gridview(editable).
It may have more than 1 row with columns startdate and enddate.
StartDate EndDate
4/4/09 6/6/09 (valid-existing row)
1/2/09 3/3/09 (valid-existing row)
7/7/09 9/9/09 (valid- edited row)
3/3/09 6/6/09 (Invalid - edited row )
When you see the above table/gridview, you will know what I want to validate.
I should be checking whether there is any row having start-end dates lying within the existing date range, if so I should invalidate them.
I shd have only distinct date range in my rows.
How do I do that.
May be Useful note: I will be able to check which column name I tried editing in that row.
Do any of you have some ideas how to create a logic to accomodate my validation issue in my webbased gridview control ?
I have imported a number of web elements that are called "reference values" from a website. These are added to the end of a website to navigate to a corresponding page. I am going to go to said website individually for each "reference value" and scrape code for use in a scheduling programming. How should i navigate to each of these websites when the url cannot be edited. The "reference values" are currently stored in an array but this does not seem like the correct method.
View 1 RepliesI am trying to add values from Arraylist to particular column of grid view.
As:
If (Arr_NewContacts.Count > 0) Then
dgvStayout.Rows.Clear() ' **GETTING ERROR HERE**
dgvStayout.Rows.Insert(0, (Arr_NewContacts.Count - 1))
For i As Integer = 0 To Arr_NewContacts.Count - 1
dgvStayout.Rows(i).Cells("Name").Value = Arr_NewContacts(i).ToString
[Code] ......
Datagrid property like AllowUserToAddRows and AllowUserToDeleteRows is already set to true.I am using above code on lost focus event of one of text box.
I am trying to make a sample Master-Detail relation ship database example in vb.net. When I add MasterTable a new row via bindingnavigator and save via savebutton autoincrement field goes -1 -2... negative values hence cannot get correct ID numbes saved in table rows till I close open sample application. How can I see correct autoincrement ID numbers in gridview after savebutton ?.Just ID numbers saved to mdb.but cannot see them i gridview and displaying negative weird numbers. This problem is important because without getting ID numbers cannot bind Detail table rows to newly recorded master table rows.
View 3 RepliesI have column in database
[Code]...
I want when any user search For: Delhi to Manali on between 17-Dec-2010 to 19-Dec-2010 then the price would be automatically changes to $900 in gridview else the default price wold be displayed in fare is $600 if he search for DelHi to Manali after 19-Dec-2010.
I have a page which has a GridView on it, which is populated from a database. Some of the columns in the GridView have text boxes, as well as Checkboxes.When the user saves the page, the page may error if they have not entered their data correctly. At this point, I need to re-display what they have entered already so they can simply make the correction instead of having to change everything from scratch again.
View 1 RepliesI would like to save Gridview with all of the columns value and reload the same grid without using database?
View 3 RepliesI have a gridview as follows
<asp:GridView ID="productListTable" runat="server" DataSourceID="srcProductListPerCustomer" AutoGenerateColumns="False" AlternatingRowStyle-CssClass="tr_dark" HeaderStyle-CssClass="header_req"
[Code]....
And it actually seems to work on first instance (altho im not sure the above is a good way to do it, but the problem is when use the pagination on the gridview I get the error
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
On the line
Dim productId As String = productListTable.DataKeys(i).Value
why I am getting this error and also is there a better way to do it ?
In my grid I have data in two columns same for couple of rows. Then again couple of other rows will same with different data.I want make them into alternative sections with colors In below example(image).
Rows no 1 to 4 has 'High', 'High'. I want make them gray bgcolor for those rows.
Rows no 5 to 8 has 'High','Low'. I want make them white bgcolor for those rows
Rows no 9 to 12 has 'High','Medium'. I want make them again gray bg color for
those rows.
I have an unbound Gridview that is populated by a Linq to Entities query and would like to convert string values in a particular column to lowercase. In the Gridview's RowDataBound event, I have tried StrConv(e.Row.Cells(3).Text, VbStrConv.ProperCase) but this doesn't work. I have also tried StrConv(emp.Name, VbStrConv.ProperCase) in the LiNQ to Entities query but still the Name values returned are to converted to Lower-case.
Protected Sub GridView3_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView3.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
For i As Integer = 0 To e.Row.Cells.Count - 1
Dim cellDate As Date
[Code] .....
I'm trying to use hyperlink fields in my gridview to pass certain values into another page using querystrings. On the next page I've put 'labels' that should be populated with data from the gridview, however nothing happens. This is my gridview code:
Code:
"<asp:GridView ID="GridViewGuitars" runat="server" AutoGenerateColumns="False"
DataSourceID="SqlDataSourceGuitars" DataKeyNames="ProductID" BorderColor="White">
<Columns>
[Code].....
I have standard .net 2.0 gridview control from which i want to get row keys or cell values from the grid when a row is selected.
I also need to call a method each time a row is selected.
How i can do this using ASP.net & VB?
Does anyone know how to pass values from adynamically created gridview checkboxes to a crystal report?Is it possible? I am using asp.net, vb.net and mssql. Here's my grid minus a few boundfields:
<asp:gridview id="grid" runat="server" autogeneratecolumns="False" cellpadding="4"
forecolor="#333333" gridlines="None" emptydatatext="No Products registered for this company...">
<RowStyle BackColor="#EFF3FB" />[code]............
I have a gridView in ConsumerList page. When Edit button is clicked (in each row), it is navigated to a EditConsumer page. In the EditConsumer page, I need to get the values of the selected row using Page.PreviousPage.[code...
View 2 Replies