Develop Reference

How to get row data by clicking a image button in a row in an ASP.NET gridview

I have a GridView in a ASP.NET web application, in which I have added image button in each row:
<asp:TemplateField>
<ItemTemplate>
<asp:ImageButton ID="edit" runat="server" CommandArgument='<%# Bind("EmpID") %>' CommandName="edituser" ImageUrl="image/images.jpg"
ToolTip="Edit User Details"> </asp:ImageButton>
</ItemTemplate>
</asp:TemplateField>
Now how I can get the row data from gridview simply by clicking an edit image button in a row?

You have to change the CommandArgument with this one:
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>
Then:
protected void GridView1_RowCommand(object sender,
GridViewCommandEventArgs e)
{
if (e.CommandName == "edituser") /*if you need this
{
// Retrieve the row index stored in the
// CommandArgument property.
int index = Convert.ToInt32(e.CommandArgument);
// Retrieve the row that contains the buttonfrom the Rows collection.
GridViewRow row = GridView1.Rows[index];
// Add code here now you have the specific row data
}
}

Bind all the columns in the label control respectively, and you can get value using findcontrol method at GridView1_SelectedIndexChanged event
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
Label _lblText = (Label)this.GridView1.SelectedRow.FindControl("UR_Desired_Label_ID");
this.TextBox3.Text = _lblText.Text ;
}

CommandField delete button showing exception

I am using a CommandField Delete imagebutton but it does not work. here is a snippet which i have tried:
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
GridViewRow row = (GridViewRow)((Control)e.CommandSource).NamingContainer;
int indx = row.RowIndex;
using (Property_dbDataContext context = new Property_dbDataContext())
{
if (e.CommandName == "Delete")
{
var delete = (from a in context.Property_basics where a.prop_id == GridView1.Rows[indx].Cells[0].Text select a).Single();
delete.delete_status = 1;
context.SubmitChanges();
GridView1.DeleteRow(indx);
}
}
}
.aspx:
<asp:CommandField ButtonType="Image" HeaderText="Delete" DeleteImageUrl="~/wp-content/themes/realia/assets/img/500px-Delete_Icon2.png" ShowDeleteButton="True" />
the exception which it shows is:
Unable to cast object of type 'System.Web.UI.WebControls.ContentPlaceHolder' to type
'System.Web.UI.WebControls.GridViewRow'.

Instead of searching the row you should use the CommandArgument to get the RowIndex. In the case of a CommandField the CommandArgument is the RowIndex. In the case of the CommandArgument passed on a standard control it's the actual command argument.
int rowIndex = int.Parse(e.CommandArgument);
GridViewRow row = GridView1.Rows[rowIndex];

try this:
GridViewRow row = (GridViewRow)((Control)e.CommandSource).NamingContainer.Parent.Parent;
Or Like
Setting Command Arguments
CommandArgument="<%# ((GridViewRow) Container).RowIndex %>"
int index = Convert.ToInt32(e.CommandArgument);
GridViewRow row = ProductsGridView.Rows[index];

Your ASPX will look like this :
<asp:Gridview id = Gridview1 runat = "server" DataKeyNames="ID" >
Code Behind : You can do it like this,
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int ID = Convert.ToInt32(dg1.DataKeys[e.RowIndex].Value.ToString());
GridViewRow row = (GridViewRow)dg1.Rows[e.RowIndex];
// write your code. to delete
}

How to delete a row without using OnRowDeleted/OnRowDeleting in gridview

Code Behind
public void lbDelete_Click(object sender, EventArgs e)
{
LinkButton lb = sender as LinkButton;
GridViewRow gvrow = lb.NamingContainer as GridViewRow;
gvsize.DeleteRow(gvrow.RowIndex);
}
GridView:
<asp:GridView ID="gvsize" runat="server" ShowFooter="True" CellPadding="1" CellSpacing="2" AutoGenerateColumns="false" GridLines="Horizontal">
<asp:TemplateField HeaderText="Action">
<ItemTemplate>
<asp:LinkButton ID="lnkdelete" runat="server" ForeColor="Blue" OnClick="lbDelete_Click">Delete</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</asp:GridView >
There are 2 rows in my gridview which I need to delete the row using the function above.
It throws an error "gvsize" RowDeletingEvent was not handled properly.
Is that necessary to use OnRowDeleted/OnRowDeleting in gridview which I feel not necessary??

As stated in How to delete row from gridview?
You are deleting the row from the gridview but you are then going and
calling databind again which is just refreshing the gridview to the
same state that the original datasource is in.
Either remove it from the datasource and then databind, or databind
and remove it from the gridview without redatabinding.
You can use row databound event to accomplish this task.
<asp:LinkButton ID="lnkBtnDel" runat="server" CommandName="DeleteRow" OnClientClick="return confirm('Are you sure you want to Delete this Record?');"">Delete</asp:LinkButton>
and in the rowdatabound event you can have
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "DeleteRow")
{
//incase you need the row index
int rowIndex = ((GridViewRow)((LinkButton)e.CommandSource).NamingContainer).RowIndex;
//followed by your code
}
}

Try this to delete row
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
dt.Rows.RemoveAt(e.RowIndex);
GridView1.DataSource = dt;
GridView1.DataBind();
}
You can also delete row from another method using Template Column
ASPX
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<asp:ImageButton ID="imgDelete" runat="server" CommandName="deletenotice" ImageUrl="~/images/delete1.gif" alt="Delete"
OnClientClick="return confirm('Are you sure want to delete the current record ?')">
</asp:ImageButton>
</ItemTemplate>
</asp:TemplateField>
C# Code
protected void gvNoticeBoardDetails_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.ToLower().Equals("deletenotice"))
{
GridViewRow row = (GridViewRow)(((ImageButton)e.CommandSource).NamingContainer);
NoticeBoard notice = new NoticeBoard();
HiddenField lblCust = (HiddenField)row.FindControl("hdngvMessageId");//Fetch the CourierId from the selected record
auditTrail.Action = DBAction.Delete;
Service simplyHRClient = new Service();
MessageClass messageClass = simplyHRClient.SaveNoticeBoard(notice, auditTrail);
if (messageClass.IsSuccess)
{
this.Page.AddValidationSummaryItem(messageClass.MessageText, "save");
showSummary.Style["display"] = string.Empty;
showSummary.Attributes["class"] = "success-message";
if (messageClass.RecordId != -1)
lblCust.Value = messageClass.RecordId.ToString();
}
else
{
this.Page.AddValidationSummaryItem(messageClass.MessageText, "save");
showSummary.Style["display"] = string.Empty;
showSummary.Attributes["class"] = "fail-message";
}
//Bind Again grid
GetAllNoticeBoard();
}
}
Hope it helps you

Get current GridView column value

I have GridView with some of columns. all the columns are boundfield like:
<asp:BoundField DataField="orderId" HeaderText="orderId"
SortExpression="orderId"></asp:BoundField>
The last column is:
<asp:LinkButton ID="LinkButton1" runat="server"
CommandName="" onclick="LinkButton1_Click" Text="Button"></asp:LinkButton>
as you see , there is "onclick" with some method.. like:
lbltest.Text = gv_order.Rows[gv_order.SelectedIndex].Cells[2].Text;
With that code i get (offcourse) what i have on the selected row in cell number 2. how can i get value from the same row (and from cell number 2) where the button is clicked without the "selceted row" ? example: when i click button on row 2 - i get the cell 2 of that row.
That's possible?

If you want to retrieve 'orderid' in more clean way, you can use CommandName, CommandArgument properties and OnRowCommand event like this:
<asp:GridView (...) OnRowCommand="Gv_RowCommand" (...)>
...
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Select"
CommandArgument='<%# Bind("orderId") %>' Text="Button"></asp:LinkButton>
and in code behind:
protected void Gv_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "Select")
{
int selectedOrderId = Convert.ToInt32(e.CommandArgument);
// ...
}
}
I hope this is what you want to do.
Edit - my answer to your comment:
Then, it's little more complicated and uses 'selectedRow' in some way. In my own code, I use this approach:
<asp:GridView ID="gv1" (...) DataKeyNames="orderId,email,username"
OnRowCommand="Gv_RowCommand" (...)>
...
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="Select"
CommandArgument='<%# DataBinder.Eval(Container,"RowIndex") %>' Text="Button">
</asp:LinkButton>
and in code behind:
protected void Gv_RowCommand(object sender, GridViewCommandEventArgs e)
{
int selectedRowIndex = Convert.ToInt32(e.CommandArgument);
if (e.CommandName == "Select")
{
int orderId = Convert.ToInt32(gv1.DataKeys[selectedRowIndex]["orderId"]);
string email = gv1.DataKeys[selectedRowIndex]["email"].ToString();
// ...
}
}

Telerik RaGrid - How to add Edit column at design time

This is a column in my Telerik Rad Grid
<telerik:GridTemplateColumn HeaderText="Action" UniqueName="dtgColActions" Groupable="false" Reorderable="false">
<ItemTemplate>
<asp:LinkButton ID="lnkActionEdit" runat="server" OnClicks="lnkEdit_Click">Edit</asp:LinkButton>
<asp:LinkButton ID="lnkActionArchive" runat="server" OnClicks="lnkArchive_Click">Archive</asp:LinkButton>
</ItemTemplate>
</telerik:GridTemplateColumn>
How can I link each Edit / Archive Link to the id of that specific row?

Here's the Solution
protected void lnkEdit_Click(object sender, EventArgs e)
{
try
{
LinkButton lb = new LinkButton();
lb = (LinkButton)sender;
Control control = lb.NamingContainer;
GridDataItem gridDataItem = (GridDataItem)control;
int itemId= Convert.ToInt32(gridDataItem["dtgColItemId"].Text);
Response.Redirect("/yourpage.aspx?id=" + itemId);
}
catch
{
}
}