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

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Forms Data Controls :: How To Delete Recursively & Verify Deletion In GridView Control

Dec 1, 2010

I have an .NET 4.0 / C# web application that contains pages with GridView controls on them. There is an Entity Data Model and EntityDataSource objects that allow for CRUD operations against the database. My questions are the following.

How can I setup the delete command in the GridView to delete recursively, given my setup? In otherwords, how do I cause it to delete the record selected as well as any records related to it, and any records related to those, and so on? Also, how do I incorporate verification of deletion before deleting? What I would ultimately like is a 3-button window to pop up. "Delete", "Delete Recursively" and "Cancel" would appear. I'm also open to other suggestions for a better way to do this.

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Forms Data Controls :: Find Checkbox Control And Delete Selected Row From Gridview?

Jan 13, 2010

I have a gridview with checkboxes

<asp:GridView ID="gv" runat="server" DataKeyNames="Id" AllowSorting="True"
AutoGenerateColumns="false">
<Columns>
<asp:TemplateField >
<ItemTemplate>
<asp:CheckBox ID="chk" runat="server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="System_Date" HeaderText="System Date" />
</Columns>
</asp:GridView>

in button click event how to find checkbox control and delete selected row from gridview i binded gridview with datatable

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Forms Data Controls :: Obtain A Value From A Record In GridView Control When Delete Is Pressed?

Jun 3, 2010

First of all, when using the GridView control with Delete enabled, when I delete a record is the event handler in the code behind file handled before the record is deleted or after? I need to obtain a counter value that I have set up in the record before it is deleted so that I can decrement all of the counter values that followed it. Is the best way to do this to open a connection in the Delete even handler and take care of it by code, or is there another way to access a column value from the GridView control that would simplify the process?

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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?

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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"

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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'.

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Data Controls :: How To Delete Duplicate Rows In GridView Control

Nov 17, 2013

To what way student is useful Dropdownlist1(Good,Fair,Poor)   When i select the Dropdpownlist1 in that select the Poor POPUP Screen will open. the POPUP Screen as follows Negative_Feed_Back Textbox1(In that textbox type the reason for Poor) OK (Button)   When user click the OK (Button) the select dropdownlist and Remarks will be displayed in the gridview In gridview as follows Dropdown Remarks 0 Student performance is not good Suppose if user wrongly type the reason for poor want to change means in that case he can change reason for poor and click the ok button. In that case two Poor reasons are there in gridview as follows Dropdown Remarks 0 Student performance is not good 0 The Students not good at all in that case i want to delete the first First Row of the gridview. Output as follows Dropdown Remarks 0 The Students not good at all  

My code as follows

private void SetDropdowndetails(string Dropdownname, Int32 Dropdownid)
{
string SelectedDropdown = string.Empty;
SelectedDropdown = Dropdownname.ToString();
hfnegativefeedback.Value = Dropdownid.ToString();

[code]....

When I run my above code shows error as follows Column 'Remarks' does not belong to underlying table 'Table1'. The above error shows in the below function as follows :

DataTable dt = new DataTable();
dt = (DataTable)ViewState["Remarks"];
dt = dt.DefaultView.ToTable(true, "Dropdown", "Remarks");
gvnegative.DataSource = dt;
gvnegative.DataBind();

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Data Controls :: How To Add Edit And Delete Buttons In GridView Control

Nov 25, 2013

I have a GridView inside my Asp.Net page, that contains some data from my Sql DataBase.

so my question is how can I add a button in the GridView to update or delete rows from the GridView.

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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.
}

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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">

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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??

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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.

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Forms Data Controls :: Delete From A SortedList Using Listview Control?

Aug 30, 2010

I'm new to Asp.net, and I looked at an example of using a listbox's selected index to delete from a sortedlist. I'd like to write somethingthat would get the selected index from a different control, like a listview, and then delete from the sortedlist. I've read up on a few examples on how to bind data from a sortedlist to a listview, but I've not seen an example of how to get the index once the data is displayed! Can this be done?

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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.

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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?

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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].....

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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]...

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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?

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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).

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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]....

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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]....

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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

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Forms Data Controls :: Delete In GridView Using Checkbox?

Jun 10, 2010

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

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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

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