In my previous tutorials, I’d explained how to send test mail using gmail smtp settings, how to export gridview selected rows to word excel text and pdf, how to send html web page as email and other more cracking tutorials on Asp.net, JavaScript, jQuery here.
Now here in this tutorial, I’ll explain how you can send asp.net gridview in mail/email with its data in asp.net, c#, vb.net using gmail smtp settings.
The .NET framework has built-in namespace for handling email settings, which is System.Net.Mail namespace. In the following example, I’ll use two classes from the System.Net.Mail namespace:
- For email settings, we will use the MailMessage class and
- For smtp settings and sending email, we will use the SmtpClient class
I guess you all know how to send mails via SMTP server, if not then please follow my first tutorial about how to send test mail using gmail smtp settings here.
HTML Markup – [.aspx]
Following is the complete HTML markup code for your .aspx page:
<head id="Head1" runat="server">
<title>Send asp.net gridview in mail in c#, vb.net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td colspan="2">
<h4>Send asp.net gridview result in mail in c#, vb.net</h4>
</td>
</tr>
<tr>
<td>
<asp:TextBox ID="txtToEmail" runat="server" Width="215" Height="25"
placeholder="To email: [email protected]"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvToEmail" runat="server" ErrorMessage="Required"
ControlToValidate="txtToEmail" ForeColor="Red" Display="Dynamic">
</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="revToEmail" runat="server" ForeColor="Red"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"
ControlToValidate="txtToEmail" ErrorMessage="Invalid Email">
</asp:RegularExpressionValidator>
</td>
<td>
<asp:Button ID="btnSend" runat="server" Text="Send Result!" OnClick="btnSend_Click" />
</td>
</tr>
<tr><td colspan="2"> </td>
</tr>
<tr>
<td colspan="2">
<asp:GridView ID="grdResultDetails" runat="server" AutoGenerateColumns="false">
<HeaderStyle Font-Bold="true" BackColor="#ff6600" BorderColor="#222"
ForeColor="White" Height="30" />
<Columns>
<asp:BoundField DataField="Subjects" HeaderText="Subjects" ItemStyle-Width="200"
ItemStyle-HorizontalAlign="Center" />
<asp:BoundField DataField="Marks" HeaderText="Marks" ItemStyle-Width="200"
ItemStyle-HorizontalAlign="Center" />
<asp:BoundField DataField="Grade" HeaderText="Grade" ItemStyle-Width="200"
ItemStyle-HorizontalAlign="Center" />
</Columns>
</asp:GridView>
</td>
</tr>
<tr><td colspan="2"> </td>
</tr>
<tr>
<td colspan="2">
<asp:Label ID="lblMsg" runat="server"></asp:Label>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
Function To Send Gridview Data in Mail – [C#]
Following is the namespace required for sending emails:
using System.Text;
using System.IO;
Following is the code that we need to use for sending emails:
{
if (!IsPostBack)
{
LoadGridData();
}
}
private void LoadGridData()
{
System.Data.DataTable dtSubData = new System.Data.DataTable();
//Creating grid columns
dtSubData.Columns.Add("Subjects");
dtSubData.Columns.Add("Marks");
dtSubData.Columns.Add("Grade");
//Adding row deails
dtSubData.Rows.Add("Asp.net", "70", "B+");
dtSubData.Rows.Add("C#", "80", "A");
dtSubData.Rows.Add("Vb.net", "76", "A");
dtSubData.Rows.Add("HTML", "91", "A+");
dtSubData.Rows.Add("CSS", "95", "A+");
dtSubData.Rows.Add("JavaScript", "78", "A");
dtSubData.Rows.Add("jQuery", "74", "A");
//Binding details to gridview
grdResultDetails.DataSource = dtSubData;
grdResultDetails.DataBind();
}
private string GridViewToHtml(GridView grdResultDetails)
{
StringBuilder objStringBuilder = new StringBuilder();
StringWriter objStringWriter = new StringWriter(objStringBuilder);
HtmlTextWriter objHtmlTextWriter = new HtmlTextWriter(objStringWriter);
grdResultDetails.RenderControl(objHtmlTextWriter);
return objStringBuilder.ToString();
}
public override void VerifyRenderingInServerForm(Control control)
{
//Required to verify that the control is rendered properly on page
}
protected void btnSend_Click(object sender, EventArgs e)
{
try
{
string Subject = "This is test mail with gridview data",
Body = GridViewToHtml(grdResultDetails),
ToEmail = txtToEmail.Text.Trim();
string SMTPUser = "[email protected]", SMTPPassword = "yourpassword";
MailMessage mail = new MailMessage();
mail.From = new MailAddress(SMTPUser, "AspnetO");
mail.To.Add(ToEmail);
mail.Subject = Subject;
mail.Body = Body;
mail.IsBodyHtml = true;
mail.Priority = MailPriority.Normal;
SmtpClient smtp = new SmtpClient();
//if you are using your smtp server, then change your host like "smtp.yourdomain.com"
smtp.Host = "smtp.gmail.com";
//chnage your port for your host
smtp.Port = 25; //or you can also use port# 587
smtp.Credentials = new System.Net.NetworkCredential(SMTPUser, SMTPPassword);
//if you are using secure authentication using SSL/TLS then "true" else "false"
smtp.EnableSsl = true;
smtp.Send(mail);
lblMsg.Text = "Success: Mail sent successfully!";
lblMsg.ForeColor = System.Drawing.Color.Green;
}
catch (SmtpException ex)
{
//catched smtp exception
lblMsg.Text = "SMTP Exception: " + ex.Message.ToString();
lblMsg.ForeColor = System.Drawing.Color.Red;
}
catch (Exception ex)
{
lblMsg.Text = "Error: " + ex.Message.ToString();
lblMsg.ForeColor = System.Drawing.Color.Red;
}
}
Function To Send Gridview Data in Mail – [Vb.net]
Following is the namespace required for sending emails:
Imports System.Text;
Imports System.IO;
Following is the code that we need to use for sending emails:
If Not IsPostBack Then
LoadGridData()
End If
End Sub
Private Sub LoadGridData()
Dim dtSubData As New System.Data.DataTable()
'Creating grid columns
dtSubData.Columns.Add("Subjects")
dtSubData.Columns.Add("Marks")
dtSubData.Columns.Add("Grade")
'Adding row deails
dtSubData.Rows.Add("Asp.net", "70", "B+")
dtSubData.Rows.Add("C#", "80", "A")
dtSubData.Rows.Add("Vb.net", "76", "A")
dtSubData.Rows.Add("HTML", "91", "A+")
dtSubData.Rows.Add("CSS", "95", "A+")
dtSubData.Rows.Add("JavaScript", "78", "A")
dtSubData.Rows.Add("jQuery", "74", "A")
'Binding details to gridview
grdResultDetails.DataSource = dtSubData
grdResultDetails.DataBind()
End Sub
Private Function GridViewToHtml(ByVal grdResultDetails As GridView) As String
Dim objStringBuilder As New StringBuilder()
Dim objStringWriter As New StringWriter(objStringBuilder)
Dim objHtmlTextWriter As New HtmlTextWriter(objStringWriter)
grdResultDetails.RenderControl(objHtmlTextWriter)
Return objStringBuilder.ToString()
End Function
Public Overrides Sub VerifyRenderingInServerForm(ByVal control As Control)
'Required to verify that the control is rendered properly on page
End Sub
Protected Sub btnSend_Click(ByVal sender As Object, ByVal e As EventArgs)
Try
Dim Subject As String = "This is test mail with gridview data",
Body As String = GridViewToHtml(grdResultDetails),
ToEmail As String = txtToEmail.Text.Trim()
Dim SMTPUser As String = "[email protected]",
SMTPPassword As String = "yourpassword"
Dim mail As New MailMessage()
mail.From = New MailAddress(SMTPUser, "AspnetO")
mail.To.Add(ToEmail)
mail.Subject = Subject
mail.Body = Body
mail.IsBodyHtml = True
mail.Priority = MailPriority.Normal
Dim smtp As New SmtpClient()
'if you are using your smtp server, then change your host like "smtp.yourdomain.com"
smtp.Host = "smtp.gmail.com"
'chnage your port for your host
smtp.Port = 25 'or you can also use port# 587
smtp.Credentials = New System.Net.NetworkCredential(SMTPUser, SMTPPassword)
'if you are using secure authentication using SSL/TLS then "true" else "false"
smtp.EnableSsl = True
smtp.Send(mail)
lblMsg.Text = "Success: Mail sent successfully!"
lblMsg.ForeColor = System.Drawing.Color.Green
Catch ex As SmtpException
'catched smtp exception
lblMsg.Text = "SMTP Exception: " & ex.Message.ToString()
lblMsg.ForeColor = System.Drawing.Color.Red
Catch ex As Exception
lblMsg.Text = "Error: " & ex.Message.ToString()
lblMsg.ForeColor = System.Drawing.Color.Red
End Try
End Sub
During Development, I Faced Following Error:
Control ‘grdResultDetails’ of type ‘GridView’ must be placed inside a form tag with runat=server
Control ‘grdResultDetails’ of type ‘GridView’ must be placed inside a form tag with
runat=server.
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.Web.HttpException: Control ‘grdResultDetails’ of type ‘GridView’ must be
placed inside a form tag with runat=server.
To resolve this issue, please check how to solve control ‘grdResultDetails’ of type ‘GridView’ must be placed inside a form tag with runat=server.
RegisterForEventValidation can only be called during Render();
RegisterForEventValidation can only be called during Render();
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: RegisterForEventValidation can only be
called during Render();
To resolve this issue, please check how to solve RegisterForEventValidation can only be called during Render();.
Example Result
Download Example
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