Forms Data Controls :: Gridview Clearing Out After Delete?

Mar 4, 2010

I have a gridview which at run-time contains X number of records. Upon clicking a DELETE linkbutton on a particular row the gridview completely disappears from the page, when it should reflect simply the loss of that one record. Everything is okay on the database end, the record is deleted, so I know that part is working. I run a query and rebind the gridview within the Rowdeleted event. I even try hardcoded a value in the query which I know exists in the database and it still doesn't refresh with this record showing. Whatever code I need to post, let me know.

[Code]....

View 20 Replies


Similar Messages:

Forms Data Controls :: Clearing A GridView And DetailsView?

Jul 8, 2010

I am designing a web page that allows for the maintenance of a single table - so I have some controls that allow the user to specify some search parameters, a button that then populates a gridview with the result of the search meeting the search parameters, and a details view for inserting and updating specific records. The gridview and detailsview are bound to appropriate sql data sources.All pretty standard.There is also a "reset" button that clears the results of the current search - sets the visibility of the gridview and detailsview to false, and clears the search parameters. Again, pretty standard.What I have done is when the user goes to insert a new record, the gridview and search parameter specification controls are hidden, and the details view displayed. If they cancel the insert operation, the details view is hidden, and the search parms and gridview displayed - but what I am finding is that there are situations when a previously populated gridview is displayed. Here's the situation:1) Specify some search parameters, click search - and the gridview appears, with the appropriate records displayed.

2) Click on the clear button (oops - I didn't want to search, but add a new record). The gridview disappears, the search values are cleared out.3) Click on the insert button - the detailsview opens in "insert" mode.So far, this all works well, and is intuitave to the users.4) Click on the "cancel" button on the details view. I hide the details view, and show the gridview and search parameters. The gridview appears - with the results of the previous databinding still in it.My question is: Is there an easy way to "unbind" the gridview? From my understanding of how the datasource to gridview (or detailsview) connection is done, there is a datatable "behind the scenes" that manages the two way data binding. I also assume that data that has been bound to a gridview is carried over in the viewstate - it would be nice to clear out unneeded data in that.

View 3 Replies

Forms Data Controls :: Clearing The Gridview Based On Text?

Mar 18, 2011

I am trying to clear a gridview of text if it equals "12:00 AM". I am using the following RowDataBound code:

[Code]....

View 3 Replies

Forms Data Controls :: Delete Confirmation Box In Gridview With Edit And Delete Buttons?

Nov 18, 2010

How do I reference the delete button to add the delete confirmation box when I have both the Edit and Delete buttons as the last two columns in the Gridview control. The following code works fine without any issues when I have the delete button only:

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType != DataControlRowType.DataRow) return;
int lastCellIndex = e.Row.Cells.Count - 1;
Button db = (Button)e.Row.Cells[lastCellIndex].Controls[0];
db.OnClientClick = "if (!window.confirm('Are you sure you want to delete this record?')) return false;";
}

But, when I have both the Edit and the Delete buttons, I get the following error when I click the edit button while the delete button works fine.

Specified argument was out of the range of valid values. Parameter name: index

How do I reference the delete button so the edit button is not affected in this case?

View 4 Replies

Forms Data Controls :: Delete Images From Folder Using Gridview Delete Link?

Feb 3, 2010

Using "Enable Delete" from Gridview control, I can delete (besides, update, sort, paging, etc) data from the database (this is done automatically). However, how can I delete the actual image that resides in my image folder (i.e. from "pix" folder )? What is the best way to delete image? If using code behind, how? Please write a full code for me. Here is my source code.

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="photoID"

View 12 Replies

Forms Data Controls :: How To Insert Delete Confirmation Dialog To Gridview Delete Button

Apr 6, 2010

I am using Sharepoint Designer and trying to insert a Delete button into a gridview. I added this to the top of my ASPX:

<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls"
Assembly="Microsoft.SharePoint, Version=11.0.0.0, Culture=neutral,
PublicKeyToken=71e9bce111e9429c" %>

and I added this as a Gridview column:

<SharePoint:DeleteItemButton
runat="server"
ID="CustomFormDeleteItemButton"
ControlMode="Edit"
/>

and this is the error I get:

An error occurred during the processing of . System.Web.UI.WebControls.DataControlFieldCollection must have items of type 'System.Web.UI.WebControls.DataControlField'. 'SharePoint:DeleteItemButton' is of type 'Microsoft.SharePoint.WebControls.DeleteItemButton'.

View 4 Replies

Forms Data Controls :: How To Delete A Row From A Gridview

Oct 7, 2010

A very simple question.

I am trying to delete a row from a Gridview but getting error in my Gridview1_Rowdeleting method on the line Gridview1.DataKeys(e.RowIndex).Value;

Error: Method, delegate or event is expected. Here is my Gridview

<asp:GridView ID="GridView1" runat="server" OnRowDeleting="Gridview1_Rowdeleting" DataKeyNames="RecAdvId">
<asp:buttonfield headertext="Delete" commandname="delete" datatextfield="MessageId" />
<asp:BoundField DataField="RecAdvId" HeaderText="RecAdvId" Visible="false" SortExpression="PanelId"
HeaderStyle-HorizontalAlign="Left">
</asp:BoundField>
<asp:BoundField DataField="Advert" HeaderText="Advert" HeaderStyle-HorizontalAlign="Left">
<HeaderStyle HorizontalAlign="Left" />
</asp:BoundField>
</asp:GridView>

Here is my code behind method which gives error:

protected void Gridview1_Rowdeleting(object sender, GridViewDeleteEventArgs e)
{
int x = _Gridview1.DataKeys(e.RowIndex).Value; //Error: Method, delegate or event is expected.
}

View 1 Replies

Forms Data Controls :: How To Delete A Row In A Gridview

Nov 2, 2010

Try to delete a row in a gridview and get this error:

Parameter '@ID' must be defined.
Have tested the sql command in the query builder. I use Mysql and c#.

Here are the code:

<asp:GridView ID="GridView1" AutoGenerateEditButton="true"
AutoGenerateDeleteButton="true" runat="server" DataSourceID="MySqlDataSource1"
Width="350px">
</asp:GridView>
<asp:SqlDataSource ID="MySqlDataSource1"
ConnectionString="<%$ ConnectionStrings:processdbConnectionString %>"
ProviderName="<%$ ConnectionStrings:processdbConnectionString.ProviderName %>"
SelectCommand="SELECT * FROM computers"
UpdateCommand="UPDATE computers SET Priority=@Priority WHERE ID=@id"
DeleteCommand="DELETE computers WHERE ID=@ID"
runat="server">

View 6 Replies

Forms Data Controls :: How To Delete Row From Gridview

Dec 10, 2010

I have an empty gridview with imagebutton,fileupload control,upload and delete buttons. I have uploaded one image to imagebutton through upload button. How to delete that row from the gridview.

I am using this code to delete a row

protected void grdImages_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Delete")
{
int deleteRowIndex = int.Parse(e.CommandArgument.ToString()); // Here i am getting the rowindex
if (grdrow.RowIndex == deleteRowIndex)
{
grdImages.DeleteRow(deleteRowIndex);
grdImages.DataBind();
}
}
}

Its not deleting the row. What could be the problem??

View 9 Replies

Forms Data Controls :: Gridview Delete One Row Only?

Mar 28, 2011

I have a gridview control on my page that lists records and sorts them according to the most recent to the oldest record. The most recent record is first record at index 0, and I want the users to be able to only delete the first record in Gridview. Is this at all possible? I'd like there to be the word 'Delete' next to the first record only.

View 4 Replies

Forms Data Controls :: How To Delete More Than 1 Image In Gridview

Sep 23, 2010

I have a gridview on my page which is bound to an objectdatasource that gets Data from an Images Table in my database.The delete button is enabled and I have this code in my DAL.ELETE FROM [Images] WHERE (([ImageId] = @ImageId))Instead of deleting just 1 image, I want to give a user the option to delete multiple images at once.

View 10 Replies

Forms Data Controls :: How To Delete A Row Only From Gridview Not The Database

Oct 27, 2010

how to delete a row only from gridview not the database?

View 4 Replies

Forms Data Controls :: Delete Row From Gridview Using Datatable

Aug 19, 2010

iam insert data through gridview using datable, and i have 2button , insert and delete button , i wants to delete a row from the gridview using delete button below the code i constructed for insert, how to delete the row.

protected void Button2_Click(object sender, EventArgs e)
{
//delete button
} [code].....

View 6 Replies

Forms Data Controls :: Gridview Delete Method?

Jul 7, 2010

When you push Gridview delete button, I want to alarm "do you want to delete register" . I searched in the internet and I wrote the code like that.

<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="lnkbtndelete"
CommandName="Delete" runat="server">
[code]...

View 4 Replies

Forms Data Controls :: Delete An Item With Gridview?

Nov 1, 2010

I added a Gridview to my page and added a new item a delete button, now when i push that button there is an error... Do I need to add some code for it? And yes, can you give an example?

View 3 Replies

Forms Data Controls :: Delete Row From Gridview Control?

Feb 26, 2011

I have a gridview control in a webform which is shown below:

[Code]....

The desire is to remove a row both from the gridview and from the backend SQL Database table. So far I have written the following code:

[Code]....

The comments shown in the else clause of the if-else indicate the code that

View 5 Replies

Forms Data Controls :: When Gridview DELETE Bombs?

Dec 7, 2010

I have several "standard" GridViews in the "admin" side of a web site I am developing. In the past, none of these have ever shown any problems with a standard Delete.

To review: Each of the subject tables has a "RowID" field specified as Identity and as the Primary Key.The BoundField for the Rowid is set to ReadOnly. There is "Edit, Delete, Select" specified for the CommondField. Edit and Select operate as they should.

HOWEVER, Delete results in a "Must declare the scalar variable "@RowID" (with the associated "unhandled exception" verbiage).

The DeleteCommand text in the SqlDataSource for the GridView reads

DELETE FROM [Events] WHERE [RowID] = @RowID

along with

[Code]....

I have inspected and compared with similar forms that function correctly and can see no differences (except for the table names).

View 3 Replies

Forms Data Controls :: Add Delete Function In Gridview?

Jan 11, 2011

I have wrote some codes and also i have added delete column with gridview and would like to make it work ,i mean when someone press delete button i want to delete that row.

here is my codes

[Code]....

View 15 Replies

Forms Data Controls :: GridView Delete Confirm?

Dec 6, 2010

I use a gridview in my aspx page with a asp:CommandField for delete data.. I need a confirm for action, than I add:

Protected Sub lavorazioni_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles lavorazioni.RowDataBound

View 6 Replies

Forms Data Controls :: Delete In GridView Using Checkbox?

Jun 10, 2010

code for deleting with the chechbox i'm searching for it

View 3 Replies

Forms Data Controls :: Configure Delete In Gridview?

Feb 20, 2010

i want delete one row of my gridview,but before delete it, ask if i sure to delete that record or not.

how can i write a configure delete code for my grid view

View 12 Replies

Forms Data Controls :: Delete Gridview Row With Objectdatasource?

Sep 21, 2010

I get the following error when trying to delete a row in a gridview. The error is strange, since I dont pass 2 parameters as far as I can see.This is the error and the code is below:

Server Error in '/' Application.

ObjectDataSource 'odsRooms' could not find a non-generic method 'DeleteRoom' that has parameters: id, locationid.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: ObjectDataSource 'odsRooms' could not find a non-generic method 'DeleteRoom' that has parameters: id, locationid.

Source Error: [Code]....

Stack Trace: [Code]....

[InvalidOperationException: ObjectDataSource 'odsRooms' could not find a non-generic method 'DeleteRoom' that has parameters: id, locationid.]
System.Web.UI.WebControls.ObjectDataSourceView.GetResolvedMethodData(Type type, String methodName, IDictionary allParameters,[code]....

View 2 Replies

Forms Data Controls :: Edit And Delete Data In Gridview Using Access Data Source?

Mar 30, 2011

This is my code and i am only able to edit the one data under the category school.But what i nd is to edit the other categories like the name,email...etc..how do i modify my code in the update command.Another thing is to delete the data how do i do that?

[Code]....

View 6 Replies

Forms Data Controls :: ModalPopupExtender Not Clearing After Update?

Oct 13, 2010

hope somebody can help with this issue as I've been struggling for days to work out what I've done wrong. Basically, I have a gridview that I've attached a small pop-up form to edit just the fields that I want editing (rather than all of the fields from the GridView). The update works OK in that the data is written back to the database OK and the pop-up form closes. However, the view of the gridview isn't returned and everything is as though the pop-up form was still there. The only way around it seems to refresh the page. The front-end is like this:

[Code]....

[Code]....

[Code]....

[Code]....

View 5 Replies

Forms Data Controls :: Alert Box Using Gridview's Delete Button?

Mar 9, 2010

Using my own button I would add a little bit of script to the onclick asking if the user wants to delete or not.How can I do this with the grid view?given that this is the button...

<asp:CommandField
ButtonType="Button"
ShowEditButton="True"
/>

How do I call the script?

View 5 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved