GridView - Row Updating Event Does Not Work

Apr 15, 2012

The following code runs successfully with no errors, but I still don't get the new data from the grid, by adding a break point, and stepping forward, the data in the variables are the original data, not the updated data.

Private Sub grvSample_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles grvSample.RowUpdating
Dim row As GridViewRow = DirectCast(grvSample.Rows(e.RowIndex), GridViewRow)
Dim passportNumber As TextBox = DirectCast(row.FindControl("txtNumber"), TextBox)
Dim expiry As TextBox = DirectCast(row.FindControl("txtExpiry"), TextBox)
[Code] .....

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Asp.net - Editing A Gridview Using The Updating Event

Nov 18, 2011

What 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]...

Gridview Row Updating Error

Jul 21, 2011

I have a gridview and have modified it following this article: url...to allow bulk updates. Whenever I try to update a row in this loop:[code]

GridView Updating On ItemCommand?

Mar 30, 2011

i put all my custom "update" code in the RowCommand event, it works fine, but i still get an error from my Data Source

System.NotSupportedException: Updating
is not supported by ObjectDataSource
'GetSources' unless the UpdateMethod

[code].....

Updating Database From A Gridview?

Nov 16, 2010

how i can take a row data in a datagrid and insert it into a table on my database?

I have the following code, but it doesnt seem to be working.

Dim conn As String = "Data Source=..."
Dim SQLString As String
Dim paramColl As SqlParameterCollection

[Code].....

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Asp.net - Gridview Edit Not Updating, Even Though There Are No Errors

Mar 18, 2011

For some reason, when i click edit on my gridview and change a value, and hit update, it does not update the database or the gridview, and it shows no error

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="id"
DataSourceID="SqlDataSource1" OnRowDataBound="GridView1_RowDataBound" AllowSorting="True" BackColor="White" BorderColor="#DEDFDE" BorderStyle="None" BorderWidth="1px" CellPadding="4" ForeColor="Black" GridLines="Vertical" ShowFooter="True" style="font-size: 10pt">
<Columns>

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Ms Access - Updating Database Through Gridview?

Aug 23, 2011

This is my code for update event

Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating
Connection.Open()

[Code]....

it is deleting and fetching fine but while trying to update it shows nullreferenceexception was unhandled by user code in this line:

a = Trim(empname.Text.ToString)

Updating Database Via Gridview Manually ASP.NET (VB)?

May 14, 2011

Protected Sub GridView1_RowCommand _
(sender As Object, e As GridViewCommandEventArgs) _
Handles GridView1.RowCommand
If e.CommandName.CompareTo("command") = 0 Then
Dim itemID As Integer = Convert.ToInt32( _
GridView1.DataKeys(Convert.ToInt32(e.CommandArgument)).Value)

[Code]...

Basically, it doesn't work and I don't get it. I've been trying to figure this out for a few days now and I can't see what I've done wrong. As you can see I'm trying to manually update a field in my database with the value of (originalvalue)+1 when the user clicks the buttonfield of the corresponding row.

I guess what I'm asking is if anyone can point out any mistakes, please do, or if there's a better way to do this (without having to go through all the DAL/BLL BS)

VS 2010 Updating Gridview Row With A Button?

Jul 19, 2011

I'm working on a project where users search for an item with it's unique number, which retrieves the data from a stored procedure, ordered by date in different rows.That works ok. After that, i have to select a row to update it's status, like from "open" to "close"( I'm using a command Select button to select the rows), but the problem occurs when i click the "Update" button,

<%@ Page Language="VB" MasterPageFile="~/Master Pages/edenorte.master" AutoEventWireup="false" CodeFile="SubirCierre.aspx.vb" Inherits="Edenorte_Operations_SubirCierre" title="Untitled Page" %>

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Database Updating, But GridView Remains Unchanged?

Oct 12, 2011

I've got my code to delete rows out of the database when the user clicks on the Delete button in my GridView, but the GridView isn't updating to reflect the new data changes.

Here's my code:

<asp:GridView runat="server" ID="grdQuestions" AutoGenerateColumns="false" Width="100%" CellSpacing="10"
PagerSettings-Visible="true">
<HeaderStyle CssClass="aspNetHeader" />

[code]....

EDIT 1:Did some stepping through the code and found that e.CommandArgument is not getting a value in grdQuestions_RowCommand

EDIT 1 (Revised):The fact that e.CommandArgument wasn't getting a value was my mistake. I'd changed the way it's value was being assigned without removing the previous method.The code runs through grdQuestions_RowCommand and then goes into grdQuestions_RowDeleting and then executes GetModuleData.I have a feeling that to view changes to the grid, a PostBack might be required, but I've removed all DataBinding to an If Not IsPostBack Then block because the alternative caused problems with the DropDownList whose selection is used as a reference to populate the grid (ddlModules selected the Module whose Questions will display in the grid).

Asp.net - Gridview Not Updating Table When Column/cell Starts With No Data?

Dec 5, 2011

UPDATED: Here is the SP, it doesn't match exactly because of ongoing testing, but you get the jist. Some fields are commented out because of testing...

[Code]...

DataFormatString From GridView Does Not Work Using A XML As Data Source?

Apr 18, 2009

I'm trying to format a column from a GriedView based on an XML file as its data source.
I've just set the DataFormatString column property to {0:MM-dd-yyyy} from my BoundFied and set the HtmlEndure to false as well. This bound field has values like 2009-04-17 00:00:00.

But the column is still not getting the expect format (MM-dd-yyyy). I've just checked all orthers properties, but I really did not figure out what is my mistake! Do you have an idea about that?

Get SQL Commands (adding, Updating, Deleting) To Work With A VB 2010 Database?

Feb 12, 2012

My project involves making a table database that displays student number, surname, first name, homeroom, and grade avg. Through SQL commands, there must be functions to add, update, delete, search by field, and save records to the database.I have already set the database up just fine and displayed it in a DataGridView. Through the DataGridView, I was able to go to the "Add Query" area, and I successfully made the queries necessary for searching by field. However, when I try to do anything other than a search using the query builder (ie start my SQL command with INSERT INTO or DELETE FROM), I ultimately get the message "Failed to get schema for this query"For example, this SQL code (to add an entry to the database) worked when I was in the Query Builder (and the entry that it made is still in the database), but when I finally tried to confirm it, I got the "Failed to get schema for this query" message.Being unable to add entries to the database this way, I tried to do it with textboxes on a form. Each textbox will have one of the fields, and at the click of a button, they would be put into the table. My code is below. I do not know what is wrong withit. When I run it, my fields do not appear on the DataGridView immediately, but I must run the program again to see it. The time after, the entry is gone. So I am not sure how exactly such entries are to be saved.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try

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Asp.net - Get The Cascading Dropdownlist To Work In A Gridview Edittemplate Fields?

Sep 14, 2011

Error is ddlgvRooms' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value

I read a lot of people having issues with this particular problem but non of the fixes have worked for my case.I have tried a few different things such as setting appenddatabounditems="true" also tried to set in the itemcollection a default null value.Most of the forums post on this that I read were from a couple years ago im hoping they fixed this bug already and I am just overlooking something.I am trying to get my cascading dropdownlist to work in a gridview edittemplate fields. I created these in my detailsview on insert everything works great.

MySetup Basically I have a webmethod that has 2 functions getRooms and getJacks that are supposed to grab the data from the 2 datasets that I have created.The Datasets get their data from a couple of SQLSTOREDPROCEDURES.My aspx page dropdownlist and AjaxCDDL looks like this

<EditItemTemplate>
<asp:DropDownList ID="ddlgvRooms" runat="server"
SelectedValue='<%# Bind("intRoom") %>'>

[code]....

Make GridView Work Like DropDownList Where Can Enable Postback?

Aug 28, 2009

How can I make GridView work like DropDownList where you can Enable Postback

Make GridView Work Like DropDownList Where Can Enable Auto-Postback?

Aug 31, 2009

How can I make GridView work like DropDownList where you can Enable Auto Postback

Progress Bar / Updating TextBox During Event

Apr 26, 2010

I am writing my first app in VBEE and require your expert assistance.Once a button is clicked in my app, a number of queries in Access 2007 are run. I would like to display the progress of these queries and send text to a text box informing the user of the progress, i.e.[code]I have entered the Text I want to display but it does not update it as it progresses through the code, instead it updates all of the text at the end, once all of the queries have been run.I would also like a progress bar to display the progress of the queries [code]

Selectionindexchange Event In Gridview?

Sep 17, 2009

I have a combo box column in vb.net datagridview . i want to perform some validation like to put some values in another text column of Grid on selectionindexchanged event of a combo box in datagridview. but unable to do so.

VS 2010 Form Not Updating During Event Handling?

Jan 11, 2010

I'm struggling to get a label or any item updated during an event handler I've tried Form.refresh/update, application.doevent, trowing laptop out of window, etc...

If i check for TextChange event on the label and return the value in a msgbox it is set however nothing is shown on the form I'm calling COM's in a backgroundWorker so the form stays responsive as the COMS take quite a bit of time to handle certain parts and I dont want the form to look as if it hangs.

Private Sub cmsCon_Change(ByVal iState As ACSCN.LoginState) Handles cmsCon.NotifyProgress is where the update occurs in the handler by calling the UpdateStatus() Method

Here is the

Imports System.ComponentModel
Public Class Avaya
'declaration

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Delete A Row From A GridView During RowDeleting Event?

Mar 20, 2009

I have a GridView and its DataSource is datatable.OnRowDeleting event of Gridview. I can't seem to delete that row when I click the 'delete' button that invokes the event to remove the row.[code]...

Get The Commandargument In Rowdatabound Event In Gridview?

Mar 18, 2009

Following is code for buttonclick in gridview.

Protected Sub lnkChangeStatus_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim gvr As GridViewRow = TryCast(DirectCast(sender, LinkButton).Parent.Parent, GridViewRow)
Dim lngProfileId As Long = Convert.ToInt64(gvwBusinessProfiles.DataKeys(gvr.RowIndex).Value)
End Sub

I want to get commandargument of lnkChangeStatus in its click.

GridView KeyPress/KeyDown Event Using VB?

Dec 26, 2009

using a datagridview and it bind by 3 rows and 3 columns,my task is when the press the F5 key then need to execute some code, my problem is if the datagridview cell is focused then now i press F5 key then the next task is executed but if the cursor is in the cell and i press F5 Key then the Key events was fired

GridView Row Command Event Not Working

Dec 2, 2010

I am having problems trying to get a rowcommand event to fire in a gridview. The code is below.
<asp:GridView ID="GridViewProducts" runat="server" AutoGenerateColumns="False"
BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px"
CellPadding="5" CellSpacing="1" DataKeyNames="Pkey"
DataSourceID="SqlDataSourceProducts" ForeColor="Black" GridLines="Vertical">
<FooterStyle BackColor="#CCCCCC" />
<PagerSettings PageButtonCount="20" />
[Code] .....

Set Dropdownlist In Gridview In Rowediting Event

Sep 7, 2010

Trying to get the findcontrol to work so I can set the default value of the dropdownlist I have in a template field, but I'm having no luck. Am I doing something wrong?

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Form Is Not Updating After Custom Class Event Is Fired

Sep 24, 2010

I'm having an issue where my main form isn't updating even though I see the event fire off. Let me explain the situation and share some of my code which I'm sure will be horrible since I'm an amateur. I created a class to take in the settings for running a process in the background. I add some custom events in that class so I could use that in my form instead of a timer.

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About Rollback And Commit In Gridview Deleting Event

Aug 10, 2011

When writing gridview Event, We must write the Commit and Rollback in event. Can not run the Event if don't write Commit. I want to know what for writing commit and rollback???what a differences between commit and rollback?

Access Textbox Value In Gridview On RowEditing Event?

Mar 2, 2009

I'm am trying to access the value of a textbox in my gridview during the RowEditing event in order to populate a dropdown list in my gridview and I keep getting a value of Nothing. I have tried everything and can't seem to figure out how to do this. The textbox I'm trying to access is "job" and the dropdown list is 'DD_CostCodeEdit'. I've posted my gridview code and also my RowEditing event code.

Gridview code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:GridView ID="TimecardGridView" runat="server" AllowSorting="True" AutoGenerateColumns="False"

[code]....

Asp.net - Detect The Click Event Of A Linkbutton In A Gridview?

Mar 11, 2009

I have a linkbutton in a column of a Gridview.When the user clicks the linkbutton, I have to redirect to another page.

Asp.net - How To Display Record In Gridview Using Pageload Event

Jan 23, 2011

How to display record in gridview using pageload event in vb.net ?

i wanna use two SqlDatasource1 and sqldatasource 2 to display record in single gridview1

SqlDatasource1 will display all records from tabel where as SqlDatasource will be used to display particuar record search in table 1 but how to do this ?

Asp.net - ImageButton In Gridview OnClick Event Not Working?

Nov 19, 2011

I've spent quite a while searching this problem, there are some other similar threads online but none have helped me fix it.I have a GridView with an ImageButton within it, the imagebutton has an OnClick function but that event is never reached when it is clicked, below is my gridview:

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