Gridview select email

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Here I will select multiple rows of gridview containg email addresses to send an email.

The complete source can be downloded from here: Gridview_send_email.zip (4.02 kb)

Here is .aspx source code:

         <asp:TextBox ID="txtSubject" runat="server"></asp:TextBox><br />
        <br />
        <table>
            <tr>
                <td style="width: 280px">
                    Email body:</td>
                <td style="width: 163px">
                    Select Recipients</td>
            </tr>
            <tr>
                <td style="width: 280px" valign="top">
                    <asp:TextBox ID="TextBox1" runat="server" Height="184px" TextMode="MultiLine" Width="368px"></asp:TextBox>
                    <asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="send" /></td>
                <td style="width: 163px">
                    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
                        ForeColor="#333333" GridLines="None" DataKeyNames="Email">
                        <Columns>
                            <asp:TemplateField HeaderText="Sr.No.">
                                <ItemTemplate>
                                    <%# Container.DataItemIndex+1 %>
                                </ItemTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField HeaderText="First Name">
                                <ItemTemplate>
                                     <asp:Label ID="lblFirstName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"FirstName") %>'></asp:Label><br />
                                    <asp:TextBox ID="txtFirstName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"FirstName") %>'
                                        Visible="False"></asp:TextBox>
                                </ItemTemplate>
                                <FooterTemplate>
                                    <asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
                                </FooterTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField HeaderText="Last Name">
                                <ItemTemplate>
                                    <asp:Label ID="lblLastName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"LastName") %>'></asp:Label>
                                    <br />
                                    <asp:TextBox ID="txtLastName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"LastName") %>'
                                        Visible="False"></asp:TextBox>
                                </ItemTemplate>
                                <FooterTemplate>
                                    <asp:TextBox ID="txtLastName" runat="server"></asp:TextBox>
                                </FooterTemplate>
                                <EditItemTemplate>
                                    <asp:TextBox ID="txtLastName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"LastName") %>'></asp:TextBox>
                                </EditItemTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField HeaderText="Email">
                                <ItemTemplate>
                                    <asp:Label ID="lblEmail" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Email") %>'></asp:Label>
                                    <asp:TextBox ID="txtEmail" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Email") %>'
                                        Visible="False"></asp:TextBox>
                                </ItemTemplate>
                                <FooterTemplate>
                                    <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
                                </FooterTemplate>
                            </asp:TemplateField>
                            <asp:TemplateField HeaderText="Check All">
                                <HeaderTemplate>
                                    <asp:CheckBox ID="chkAll" runat="server" AutoPostBack="True" OnCheckedChanged="chkAll_CheckedChanged" />
                                </HeaderTemplate>
                                <ItemTemplate>
                                    <asp:CheckBox ID="chkItem" runat="server" />
                                </ItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                        <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
                        <RowStyle BackColor="#FFFBD6" ForeColor="#333333" />
                        <PagerStyle BackColor="#FFCC66" ForeColor="#333333" HorizontalAlign="Center" />
                        <SelectedRowStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="Navy" />
                        <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
                        <AlternatingRowStyle BackColor="White" />
                    </asp:GridView>
                </td>
            </tr>
        </table>

C#.Net code behind

GridView1.DataKeys[gr.RowIndex]["Email"].ToString()

For using DataKeys you need to add dataKeys to your gridview. you can add multiple dataKeys to your gridview separated by ",".

e.g.

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
ForeColor="#333333" GridLines="None" DataKeyNames="Email">

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

using System.Net.Mail;
using System.Text;
using System.Net;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

        if (!Page.IsPostBack)
        {
            BindGrid();
        }
    }

    private void BindGrid()
    {
        GridView1.DataSource = GridDataProvider.GetData();

GridView1.DataBind();

    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        GridView1.ShowFooter = true;
        BindGrid();
    }
    protected void Button1_Click(object sender, EventArgs e)
    {

    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        foreach (GridViewRow gr in GridView1.Rows)
        {
            TextBox t = (TextBox)gr.FindControl("txtFirstName");
            TextBox tLastName = (TextBox)gr.FindControl("txtLastName");
            TextBox tEmail = (TextBox)gr.FindControl("txtEmail");
            Label lFirstName = (Label)gr.FindControl("lblFirstName");
            Label lLastName = (Label)gr.FindControl("lblLastName");
            Label lEmail = (Label)gr.FindControl("lblEmail");

            if (t.Visible)
            {
                t.Visible = false;
                tLastName.Visible = false;
                tEmail.Visible = false;
                lFirstName.Visible = true;
                lLastName.Visible = true;
                lEmail.Visible = true;
            }
            else
            {
                t.Visible = true;
                tLastName.Visible = true;
                tEmail.Visible = true;
                lFirstName.Visible = false;
                lLastName.Visible = false;
                lEmail.Visible = false;

}

        }
    }
    protected void LinkButton2_Click(object sender, EventArgs e)
    {
        foreach (GridViewRow gr in GridView1.Rows)
        {
            TextBox t = (TextBox)gr.FindControl("txtFirstName");
            TextBox tLastName = (TextBox)gr.FindControl("txtLastName");
            TextBox tEmail = (TextBox)gr.FindControl("txtEmail");
            Label lFirstName = (Label)gr.FindControl("lblFirstName");
            Label lLastName = (Label)gr.FindControl("lblLastName");
            Label lEmail = (Label)gr.FindControl("lblEmail");

// Call your SQL server Data Access layer to save appropriate fields.

}

    protected void chkAll_CheckedChanged(object sender, EventArgs e)
    {


        foreach(GridViewRow gr in GridView1.Rows)
        {
            CheckBox cb = (CheckBox)gr.FindControl("chkItem");
            if(((CheckBox)sender).Checked)
             cb.Checked = true;
                else
             cb.Checked = false;
        }

}

    protected void Button3_Click(object sender, EventArgs e)
    {
        StringBuilder sb = new StringBuilder();

        foreach(GridViewRow gr in GridView1.Rows)
        {
            CheckBox cb = (CheckBox)gr.FindControl("chkItem");
            if(cb.Checked)
            {
                sb.Append(GridView1.DataKeys[gr.RowIndex]["Email"].ToString());
                sb.Append(",");
            }
        }

        MailMessage msg = new MailMessage("mailto:your_hotmail_id@hotmail.com%22,sb.ToString());
        msg.Subject = txtSubject.Text;
        SmtpClient sc = new SmtpClient("smtp.live.com",25);
        sc.Credentials = new NetworkCredential("mailto:your_hotmail_id@hotmail.com%22,%22Your_password");
        sc.EnableSsl = true;
        try
        {
        sc.Send(msg);
            Response.Write("<B>Email Has been sent successfully.</B>");
        }
        catch(Exception ex)
        {
            Response.Write(ex.Message);
        }

}
}

Vb.Net code

Imports System
Imports System.Data
Imports System.Configuration
Imports System.Web
Imports System.Web.Security
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Imports System.Web.UI.HtmlControls

Imports System.Net.Mail
Imports System.Text
Imports System.Net

Public Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(sender As Object, e As EventArgs)

  If Not Page.IsPostBack Then
   BindGrid()
  End If
End Sub

Private Sub BindGrid()
GridView1.DataSource = GridDataProvider.GetData()

GridView1.DataBind()

End Sub
Protected Sub Button2_Click(sender As Object, e As EventArgs)
GridView1.ShowFooter = True
BindGrid()
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs)

End Sub
Protected Sub LinkButton1_Click(sender As Object, e As EventArgs)
  For Each gr As GridViewRow In GridView1.Rows
   Dim t As TextBox = DirectCast(gr.FindControl("txtFirstName"), TextBox)
   Dim tLastName As TextBox = DirectCast(gr.FindControl("txtLastName"), TextBox)
   Dim tEmail As TextBox = DirectCast(gr.FindControl("txtEmail"), TextBox)
   Dim lFirstName As Label = DirectCast(gr.FindControl("lblFirstName"), Label)
   Dim lLastName As Label = DirectCast(gr.FindControl("lblLastName"), Label)
   Dim lEmail As Label = DirectCast(gr.FindControl("lblEmail"), Label)

   If t.Visible Then
    t.Visible = False
    tLastName.Visible = False
    tEmail.Visible = False
    lFirstName.Visible = True
    lLastName.Visible = True
    lEmail.Visible = True
   Else
    t.Visible = True
    tLastName.Visible = True
    tEmail.Visible = True
    lFirstName.Visible = False
    lLastName.Visible = False

lEmail.Visible = False

   End If
  Next
End Sub
Protected Sub LinkButton2_Click(sender As Object, e As EventArgs)
  For Each gr As GridViewRow In GridView1.Rows
   Dim t As TextBox = DirectCast(gr.FindControl("txtFirstName"), TextBox)
   Dim tLastName As TextBox = DirectCast(gr.FindControl("txtLastName"), TextBox)
   Dim tEmail As TextBox = DirectCast(gr.FindControl("txtEmail"), TextBox)
   Dim lFirstName As Label = DirectCast(gr.FindControl("lblFirstName"), Label)
   Dim lLastName As Label = DirectCast(gr.FindControl("lblLastName"), Label)

' Call your SQL server Data Access layer to save appropriate fields.

Dim lEmail As Label = DirectCast(gr.FindControl("lblEmail"), Label)
Next

End Sub

Protected Sub chkAll_CheckedChanged(sender As Object, e As EventArgs)

  For Each gr As GridViewRow In GridView1.Rows
   Dim cb As CheckBox = DirectCast(gr.FindControl("chkItem"), CheckBox)
   If (DirectCast(sender, CheckBox)).Checked Then
    cb.Checked = True
   Else
    cb.Checked = False
   End If
  Next

End Sub

Protected Sub Button3_Click(sender As Object, e As EventArgs)
Dim sb As New StringBuilder()

  For Each gr As GridViewRow In GridView1.Rows
   Dim cb As CheckBox = DirectCast(gr.FindControl("chkItem"), CheckBox)
   If cb.Checked Then
    sb.Append(GridView1.DataKeys(gr.RowIndex)("Email").ToString())
    sb.Append(",")
   End If
  Next

  Dim msg As New MailMessage("your_hotmail_id@hotmail.com", sb.ToString())
  msg.Subject = txtSubject.Text
  Dim sc As New SmtpClient("smtp.live.com", 25)
  sc.Credentials = New NetworkCredential("your_hotmail_id@hotmail.com", "Your_password")
  sc.EnableSsl = True
  Try
   sc.Send(msg)
   Response.Write("<B>Email Has been sent successfully.</B>")
  Catch ex As Exception
   Response.Write(ex.Message)
  End Try

End Sub
End Class

'=======================================================
'Service provided by Telerik (http://www.telerik.com/)
'Conversion powered by NRefactory.
'Built and maintained by Todd Anglin and Telerik
'=======================================================

For demo purpost I used hotmail smtp, you can use your own smtp to send customised emails.

Satalaj

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