ASP.NET

Re: How to get the index of the gridview with click of asp button

8-Mar-10 5:24

laziale wrote:
not GridViewCommandEventArgs, since with GridViewCommandEventArgs nothing is happening

Can you post your code?

Cheers!!
Brij

laziale8-Mar-10 5:39

laziale

8-Mar-10 5:39

hello
thx for your reply and here is my code:
backend:

protected void updateNote(object sender, GridViewCommandEventArgs e)
       {
           string selectedIndex = "";
           int index = 0;
        index = Convert.ToInt32(e.CommandArgument);
         //  index = 1;
        //   Button bttn = (Button)sender;

        GridViewRow row = gvOrderNotes.Rows[index];

            ListItem item = new ListItem();
           item.Text = Server.HtmlDecode(row.Cells[3].Text);
           selectedIndex = item.Text;
       }

html:

<ItemTemplate>
                                       <asp:Button runat="server" ID="ChkUpdate" onclick="updateNote" AutoPostBack="true" Width="160%" Text="Update Order"/>
                                       <ajaxToolkit:ConfirmButtonExtender ID="chkUpdateConfirmBtnExtender" runat="server" TargetControlID="chkUpdate" DisplayModalPopupID="modalPopupExtenderChkUpdate"></ajaxToolkit:ConfirmButtonExtender>
                                       <ajaxToolkit:ModalPopupExtender ID="modalPopupExtenderChkUpdate" runat="server" TargetControlID="chkUpdate" PopupControlID="pnlChkUpdate"
                                       OKControlID="chkUpdateOK" CancelControlID="chkUpdateCancel" BackgroundCssClass="modalBackground" />
                                  </ItemTemplate>

Thx for your help one more time.
Laziale

Re: How to get the index of the gridview with click of asp button

Brij8-Mar-10 7:49

Re: How to get the index of the gridview with click of asp button

8-Mar-10 7:49

Why dont you use rowcommand event of gridview..
use your button like in the link

Cheers!!
Brij

Abhijit Jana8-Mar-10 5:38

Abhijit Jana

8-Mar-10 5:38

You have to use e.RowIndex, where e is EventArgs.

Re: How to get the index of the gridview with click of asp button

laziale8-Mar-10 5:48

laziale

8-Mar-10 5:48

there is no rowIndex under EventArgs e.
I have just Equals, GetHashCode, GetType and ToString.

Thx for your help though.
Laziale

Re: How to get the index of the gridview with click of asp button

jayantbramhankar9-Mar-10 9:51

jayantbramhankar

9-Mar-10 9:51

try this,

Add commandArgument in <asp:button> tag

<asp:Button ID="Button1" runat="server" Text='<%#Eval("YourDataFiled")%>'

                CommandArgument = "Button1"  OnClick = "Button1_Click" />

c# code

protected void Button1_Click(object sender, EventArgs e)
 {
     Button button = (Button)sender;

     string CommandName = button.CommandName;

     string CommandArgument = button.CommandArgument;
     int index = Int32.parse(button.CommandArgument);


 }

Hope this helps.

Special character Diplay problem

Syed Shahid Hussain8-Mar-10 4:31

Syed Shahid Hussain

8-Mar-10 4:31

Hei,

I've some special characters like æ ø å and when I use these chars it display correct in the label but when i bind that field with a Gv they are converted in to ø or any other number at the place of 248. What is the solution for this problem.

Thanks

Syed Shahid Hussain

Brij8-Mar-10 5:35

8-Mar-10 5:35

To handle special characters,you can use javascript functions escape() and unescape() to encode and decode.this will allow to display the special characters

Cheers!!
Brij

Syed Shahid Hussain9-Mar-10 0:47

Syed Shahid Hussain

9-Mar-10 0:47

Thanks Brij

Syed Shahid Hussain

Sandeep Mewara8-Mar-10 9:48

Sandeep Mewara

8-Mar-10 9:48

Just, set the HtmlEncode property of your BoundField to False.
Like:

     <asp:boundfield datafield="Character" headertext="Character" htmlencode="false" />			
</asp:gridview>

Custom Events on Custom Controls and fire it

Syed Shahid Hussain9-Mar-10 0:46

Syed Shahid Hussain

9-Mar-10 0:46

Hei

Thanks a lot Sandeep Mewara You had solved my problem.

for u Rose | [Rose]

Syed Shahid Hussain

Julien Lacoste8-Mar-10 4:04

Julien Lacoste

8-Mar-10 4:04

Hi All,

I need to implement on my form, a feature to automaticaly store the old value of the cotnroles on a database if the user press a button to save the value. One way is to code it for each control on the ButtonClick event but it's too heavy to do and no fearly nice.

So, a good way is to declare inherited controls, add properties and declare events. On the form, when the user press the button, raise the event and for each control whose has the value changed and saved it to disk.

I need also to pass arguments on the Event to stored it on the database.

I have implemented the following but the event on the custom controls is not fired. So I do not know what is wrong.

First:
On the /APP_Code subdirectory, I have created a class called "MyControls" like this:

namespace MyControls
'need this class to customize argumentso to pass in tge event
Public Class SaveEventArges
myproperties...
End Class

Public Delegate Sub SaveEventHandler (ByVal sender As Object, ByVal e as SaveEventArgs)

Public Class ComboBox
Inherits .....
myproperties and methods ...

Public Event Save as SaveEventHandler

Protected Overridable Sub OnSave (ByVal sender As Object, ByVal e as SaveEventArgs)
RaiseEvent Save(me, e)
End Sub

Protected Sub ComboBox_Save ( ByVal sender As Object, ByVal e as SaveEventArgs) Handles Me.Save
mySaveCode
End Sub
End Class
end namespace

Second: On my form

<%@ Page Language="VB" AutoEventWireup="true" CodeFile="Default.aspx.vb" Inherits="_Default" >
<%@ Register TagPrefix = "mc" Namespace = "MyControls" %>
...
<mc:combobox runat="server" id="TextComboBox" ><="" mio:combobox="">
<asp:button runat="server" id="Btn" text="Press">
....

On the code behind:
Imports MyControls
....
Public Event Save As SaveEventHandler
Protected Sub Btn_Click ....
Dim t as New SaveEventArgs
my t... properties to pass to the event
RaiseEvent Save (me., t)
End Sub

What am I doing wrong?

I spent 4 days reading how to do it and no way to found a solution, so please i need your help.

Regards

Julien Lacotse

How to Fill GridView Fast

Manish_Kumar_Nayak8-Mar-10 1:07

Manish_Kumar_Nayak

8-Mar-10 1:07

I have bulk of data of client information aprox 15000. When I Fill this data to GridView it takes too much time.

1. Fill data with sqldatasource.
2. Fill datatable and bind with GridView.

To fill data with datatable to get data I use this code -

SqlConnection cnSql = new SqlConnection(strConn);
cnSql.Open();
SqlCommand cmd = new SqlCommand(StrSql, cnSql);
cmd.CommandTimeout = 50000;
cmd.ResetCommandTimeout();
SqlDataReader dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);

is there any problem with my code or I have to change some configuration in my web.config ?

Abhijit Jana8-Mar-10 1:31

Abhijit Jana

8-Mar-10 1:31

res.manish wrote:
I have bulk of data of client information aprox 15000.

This is not an good idea to showing this amount of data In gridview at time.
What you can do

1. Use Filter Criteria and based on that allow to retrieve Data. Because, there is no sense to load 15,000 at a time, as no one going to check those data at time.
So, use filter criteria.

2. Use Caching, To Reduce the performance hit. If the data is common for all user, use dataCaching, use filter from Cached data itself. Use Cache Dependency if you want to update cache if some changes in data.

Hope this will help you !

Anurag Gandhi8-Mar-10 1:59

Anurag Gandhi

8-Mar-10 1:59

Apart from Abhijit's suggestion you may also wish to consider one or more of other methods of displaying data. Some of them are: Paging, Grouping of Records, Pivoting, or using Graphs or charts.

The main idea is just don't dump a lot of data to the client browser. Secondly, user can analyse the data if the number of rows are lesser.

Anurag Gandhi.
http://www.gandhisoft.com
Life is a computer program and every one is the programmer of his own life.

Brij8-Mar-10 2:34

8-Mar-10 2:34

As Anurag & Abhijit suggested,use some filter criteria.If there is no criteria then use paging.Also it'll be better if you do the paging at databse level itself.

Cheers!!
Brij