Can't Get GridView's RowDataBound Update Rows After The First Row?

Oct 14, 2011

I have asked a question similar to this in the past. I was able to resolve it by removing gvRowDataBound completely from the code. This is similar code except I can't remove gvRowDataBound sub.

The issue is that when you click the Edit button of the first row, it allows you to successfully update that row.After the first row, if you click on thr edit button of any other row, enter the value to update, it doesn't update that row.

Instead, the cursor moves down to the next row. I didn't design this and having difficulty figuring out what needs to change.

[Code]...

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Asp.net - RowDataBound Function Of GridView?

Mar 14, 2009

I have a DataTable that contains 3 fields: ACount, BCount and DCount. If ACount < 0 then I need to display 'S' in one of the columns of the GridView. If ACount > 0 then I have to display 'D' in that column(in label).Same thing with BCount and DCount. How can I do this conditional check in the RowDataBound function?

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 RowDataBound Access Data Items

Mar 8, 2011

I am trying to an ImageUrl to an image in a Template Field in GridView but keep getting the error:
Object reference not set to an instance of an object. on this line:
Dim imagePath As String = rowView("image_path")
I've never done this before on a GridView but had it working on a ListView.

Heres my code:
.APSX
<asp:GridView ID="gvImages" DataKeyNames="id" runat="server" AutoGenerateColumns="False" BorderWidth="0px" GridLines="None">
<Columns>
<asp:TemplateField>
<ItemTemplate>
[Code] .....

Asp.net - Does Having A Theme For A GridView Prevent Changes To A Row's Backcolor Property On RowDataBound

Dec 15, 2009

I'm trying to change the backcolor of a .Net GridView when a certain condition is met. This should be fairly straightforward, but the color change isn't happening. Checking the rendered HTML shows absolutely nothing different in the affected rows even though the text change on the link is happening as expected.There is a default theme set for all gridviews and I haven't worked with that in the past. Is that preventing me from dynamically changing the color of a row or am I missing something else? I'm using .Net 3.5 and have the following in my code behind:

Protected Sub gvPrevious_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) Handles gvPrevious.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
If currentCorrespondence.IsRetired Then //custom object, returning as expected
Dim link As LinkButton = DirectCast(e.Row.Controls(4).Controls(2), LinkButton)

[code]....

From the above code, when I go into the browser and view source, I would expect to see <tr style="background-color: #CD5C5C;"> for the affected rows. Instead, I see <tr> and <tr class="AlternateRowStyle"> (where appropriate). I see absolutely no effect from the BackColor property change. I have also attempted to use e.Row.CssClass with the same result.

Handling RowDataBound Causes Dynamically-bound GridView To Show Only First Record

Jun 28, 2011

I have a GridView control which I am dynamically binding to a DataTable which is populated by a query built based on a set of selected options.What I am trying to do is simply handle the RowDataBound event in order to format specific rows based on the value of a database field. The code in this event handler works fine. My problem is, calling this event causes the GridView to only display the first record in the DataTable, almost as if the Gridview stops after binding to the DataTable after the first row is bound. I have attempted adding the handler dynamically, but I get the same results.I know for a fact that there is sufficient data being returned (the DataTable fills with all of the records, and the GridView shows all the records fine when not touching the RowDataBound event).

I'm adding the handler immediately after generating the query, filling the DataTable, and binding the GridView: [code]I have also determined that, when handling RowDataBound, the GridView's DATABOUND event never gets fired; it seems to stop binding right after binding the first row.

VS 2008 Insert Rows In Between Rows In Gridview Based On The Parent And Child Nodes?

Jan 20, 2011

I am working on Treeview control and Gridview Control VB.NET08. In the Treeview i have Parent and Child Nodes. Like:

- 31
3101
3102

[Code].....

Add Rows Inbetween Rows In Gridview Based On Parent And Child Node

Jan 19, 2011

I am working on Treeview control and Gridview Control VB.NET08. In the Treeview i have Parent and Child Nodes. Like: [Code] Comparing the Parent Node text and first two digits in the Column values. I want to add rows inbetween the gridview rows based on the parent and Child Nodes. If i expand the First Parent Node Called "31" then according to the Number of Child Nodes (for first parent node(31) there are 5 child nodes.) add rows in the gridview.

These New rows should be add under the 31-xxxx. If i expand the 32 Parent Node based on number of Child Nodes, add rows under the 32-xxxx. [Code] I am getting the rows in the end of the Gridrow not in the Specific row.

Find The Number Of Expanded / Collapsed Master Rows And Grouped Rows In A DevExpress GridView?

Jan 18, 2012

I am currently using DevExpress 10.2 within Visual Studio 2010. In a previous question I was trying to print the current user view of a DevExpress GridControl with the user's choice of expanded or collapsed master rows and/or group sections. I was told this was not possible at this time. I have now decided to use the following code:

[Code]...

Gridview Doesn't Update Insert/update Commands

Jul 21, 2010

I have a gridview that is set to a sql datasource, it is generating the columns automatically. If I add a column to the table it is referencing, it will draw that column and display it, but it does not update the insert/update commands to include the new column. Is there any way have it rebuild those commands automatically?

DTABASE NOT UPDATING - Error (update Requires A Valid Update Command When Passed Datarow Collection With Modified Rows)

Sep 28, 2009

I have an issue with a data base updating it won't update for me in debgging mode it is stopping here on this bit of code which is highlighted in red. the error which comes up is .(update requires a valid update command when passed datarow collection with modified rows.)

Public Sub UpdateDataSource(ByVal ChangedRows As database.dataset1)
Try
'The data source only needs to be updated if there are changes pending.
If (Not (ChangedRows) Is Nothing) Then

[CODE]...

Open A CSV File Update Some Rows, Columns, Delete Some Rows And Save It As Another CSV File?

Aug 25, 2011

I have a csv file. I need to open it, delete whole row on basis of a column value, Update few of the column values and save the file as .dat file. I am using VB.net 2010

Add Rows To Gridview From Strings?

Mar 29, 2012

I want to make a gridview with 4 columns. (Checkbox, Hyperlink name Title, Dynamic name Price, Dynamic named ASIN#)I want to be able to add new rows to the gridview from three different strings. I have a function that looks like this:Private Sub displayData(title As String, cost As String, asin As String)Is it possible to even add new data to the gridview with these strings.I've looked all around online and most things deal with databases. I'm also not 100% sure how to initialize at gridview.

Clear The Rows Out Of A Gridview?

May 27, 2009

How do you clear the rows out of a gridview

Filtering Rows In A Gridview?

Apr 4, 2012

I have a gridview that contains user info and one of the columns is a date when the user was added to the system. Is it possible to use the GridView.onRowCreated method to check if the user was added within a given time frame? If the user was added within that timeframe, then the row is added, if not, then that row is not added.

Note that I can't modify the datasource of the gridview, so I need to do this somehow as the gridview is being created.

Rows Of A Gridview With More Than One Page?

Mar 6, 2012

Is it possible to loop through a gridview with more than one page, the gridview I'm looking at has a pageSize of 20, there are say 26 records (over two pages) and I want to be able to loop though all the records.

For Each row As GridViewRow In GridView.Rows The count of the above is only 20 as the pageSize is set to 20, I can see that the pagecount is 2 but how do you loop through the next page in a gridview? Or would I have to just iterate through the orginal datasource?

Asp.net - Dynamic GridView Has 0 Rows On RowCommand

May 14, 2009

I have a dynamically-created GridView which to which I'm attaching a handler using the AddHandler command. The problem is that when I try to refer to sender.rows within that function, it won't do anything because it says that sender.rows.count = 0. I've done enough dynamic form creation that I'm pretty sure that I'm creating the controls, binding them, and adding the handler at the proper points during the page init/load load_complete. Also, I have nearly the exact same code-behind on another form that is not dynamic, and it is able to access the values in the rows.

Considering that the RowCommand event is firing, it's clear that I'm clicking on a row. For some reason it's just not in scope for the handler event. Background: What I really want to do is access the values that are databound to the row. I'm creating a SQLCommand and binding that to the dynamic grid, and I would prefer to talk to the grid's datasource, but that doesn't seem to be possible. Perhaps I'm missing something, but for now it seems that reading the values from the GridView (which I hate doing) is the only thing that works.

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Asp.net - One Checkbox To Control Gridview Rows?

May 11, 2012

How can I implement the following:I would like to have a checkbox on the top of my gridview. When checkbox is checked should show all the hidden rows from the gridview but when is unchecked should only show the unhide ones.

I only need 1 checkbox at the top(not in the header of the gridview), I found couple of examples but all of the have checbox as coulumn and then added to the header as well.

Delete All Rows In SQL Gridview Is Deleting All But 1 Row

Feb 15, 2010

So I've created a gridview with checkboxes so the user can check as many fields as they want and delete them with the click of a button. It works except that it deletes all selected rows except one, the row with the lowest number. I can't firgure out what logic error is causing this.

Here's the code for the delete button procedure:

Protected
Sub btnDelete_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Dim count As Integer = 0

[Code]....

Filter Gridview Rows With Checkbox?

Mar 6, 2011

I would like to filter Gridview1 with, control checkbox, and code as "If GridView1 rows of column FirstName have value 'John' then show only this rows."I have somehow with network help write this code. But code is not working as it should, and also I do not know how to add controls also for other rows with values such as 'James', 'Paul'...

For Each x As GridViewRow In Me.GridView1.Rows
If Not x.Cells(0).Value = "John" Then
x.Visible = False

[code]....

How To Export Selected GridView Rows

Jan 11, 2011

I have a gridview which gets its input from a database with sql. There is a column with checkboxes in the gridview, so you can select which row you want to export. There is also a column that's called "Project Number". When you push the button "Export" the program should figure out which row is selected, get the project number from this row and connect to the database to get the data from the selected projectnumber. I already got the part where it gets the selected checkboxes. But I'm stuck at the part where it gets the projectnumber from the selected row. Must be something with Datakeys I think.

Insert Multiple Rows In Gridview?

Aug 13, 2010

I have the following code to add a new row into a datatable and then bind it to a gridview.I need to add a new row anytime i click the Button2.What do i need to change in the code so i can have multiple rows before i submit them to a database?

Private Sub BindGrid()
Dim DT As New DataTable
Dim Row As DataRow

[code]....

One Checkbox To Control Gridview Rows?

Apr 25, 2010

How can I implement the following:I would like to have a checkbox on the top of my gridview.When checkbox is checked should show all the hidden rows from the gridview but when is unchecked should only show the unhide ones.

Remove Rows From Gridview With Jquery?

Dec 7, 2011

I am new using Jquery. I am using vb.net 2008, and I have built a gridview and populated it with data. I am trying to use jquery to go in and remove rows if one of the attributes of the row does not equal the user that I am currently looking at.

Data Not Updating Error "Update Requires A Valid Update Command When Passed DataRow Collection With Modified Rows"

May 29, 2009

I am completly flummoxed!!! I have writen code for updating my table from a form but when I use the same code only changing the table names it wont work I get the following message: "Update requires a valid Update Command when passed DataRow collection with modified rows" My codes are as follows:

[Code]...

Asp.net - GridView : 2 Rows Selected And Nonexistent RowState Of 3?

Nov 4, 2010

In RowCreated of the GridView i add following script to select a row:

Select Case e.Row.RowType
Case DataControlRowType.DataRow
e.Row.Attributes("onclick") = Me.Page.ClientScript.GetPostBackClientHyperlink(Me.MainGrid, "Select$" & e.Row.RowIndex)
End Select

This works like a charm(i thought).But when i debug the SelectedIndexChanging and the following SelectedIndexChanged events, i observe that the RowState of the selected Row switches from normal{0}/alternate{1} to 3 instead of selected{2}. This occurs between SelectedIndexChanging and SelectedIndexChanged. Why does this happen? The next time i programmatically set the selectedIndex(f.e. after a new row was created), i have two rows that are selected and no (un-hacky) way to deselect the old in RowDataBound, because of the invalid RowState of 3(should only be 0,1,2,4 or 8).

Asp.net - Selecting A Rows In The Standard .net 2.0 GridView Using JavaScript?

Mar 20, 2009

how i can get the grid to select a row by clicking on any cell in the row?

The only way i can do this at the moment is by setting the AutoGenerateSelectButton property to True, but this adds a column to the grid with a crude "select" hyperlink and only selects the row if the word "Select" is cliked on.

Creating A Unique URL From Selecting Different Rows In A Gridview?

Sep 30, 2010

Whenever a row is selected in my GridView, I want to take the ID field of my gridview's dataset and form a unique URL with it (use a ?id=1234 parameter). In the Page_Load event I have the following code:

TextBox1.Text = Request.Url.AbsoluteUri.ToString & "?id=" & _
GridView1.SelectedIndex.ToString & Environment.NewLine

Making LinkButton Visible In Certain Rows Only Within GridView?

Jul 19, 2011

I have set up a GridView as set out below. You can see there are four LinkButton's per row. What I want to do is make certain LinkButtons available depending on which row they appear in.
<asp:GridView ID="FormsGrid" runat="server" Width="657px" Height="250px" DataKeyNames="FORM_NAME,FORM_ACCESS,STATUS,ID"
AutoGenerateColumns="False" DataSourceID="SqlDataSource1" >
<Columns>
<asp:BoundField DataField="DEADLINE_DATE" HeaderText="Date" DataFormatString="{0:d}"
SortExpression="DEADLINE_DATE" />
[Code] .....

When I try to make them not visible use the code below in FormsGrid_RowDataBound, it doesn't work and a get a null value error.
if e.Row.Cells(4).Text = "1" then
Dim FLbtn As LinkButton = FormsGrid.FindControl("FormLinkBtn")
FLbtn.Visible = True
Dim NRbtn As LinkButton = FormsGrid.FindControl("NotReqBtn")
NRbtn.Visible = False
[Code] .....
Also when I click say the FormLinkBtn, how do I determine the value of the fields in that particular row?

VS 2008 Expanding/Collapse Gridview Rows?

Mar 15, 2011

How can i create a GridView that will expand and collapse nested(child) rows based on serial number. +1100,+1200,+1300,+1400 when i click on +1100 sign all the rows 1101,1102,1103.....,1199 should be expanded,when i click sign "-"(minus) the group should collapse.

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