Learn C# ASP.NET MVC WCF SQL Angular: comment box in asp.net c# code

In this article I am going to explain how to write standard code to create comment box in ASP.NET c#.

Create a SQL table for insert comment

CREATE TABLE InsComment (

CommentId BIGINT identity(1, 1)

,NAME VARCHAR(50)

,Comment VARCHAR(500)

)

Now I am writing a XSLT file code to display comment after Save (Create a XSLT fie in "XSLT" floder with name "History.xslt")

Solution Explorer look like

<?xml version="1.0" encoding="utf-8"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template match="/">

<xsl:for-each select="Comments/Comment">

</div>

<div style="font-weight:bold; float:left; width:100px;">Comment:</div>

</div>

</div>

</xsl:for-each>

</xsl:template>

</xsl:stylesheet>

Default.aspx Code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

.drp

{

background: #F4F4F4;

border: 1px solid #DEDCDD;

color: #555555;

height: 25px;

padding-left: 10px;

margin-bottom:10px;

-moz-transition: all 0.3s linear;

-o-transition: all 0.3s linear;

-webkit-transition: all 0.3s linear;

transition: all 0.3s linear;

font-family: Arial, Helvetica, sans-serif;

font-size: 12px;

}

.drp:focus { outline:none; border:1px solid #F90; }

.med-form-col-1-8 { width:12.5%; }

.med-form-col-2-8 { width:25%; }

.med-form-col-3-8 { width:37.5%; }

.med-form-col-4-8 { width:50%; }

.med-form-col-5-8 { width:62.5%; }

.med-form-col-6-8 { width:75%; }

.med-form-col-7-8 { width:87.5%; }

.med-form-col-8-8 { width:100%; }

.med-form-col-1-8,

.med-form-col-2-8,

.med-form-col-3-8,

.med-form-col-4-8,

.med-form-col-5-8,

.med-form-col-6-8,

.med-form-col-7-8,

.med-form-col-8-8

{

float:left;

padding:1px 10px;

box-sizing: border-box;

-moz-box-sizing: border-box;

-ms-box-sizing: border-box;

-webkit-box-sizing: border-box;

-khtml-box-sizing: border-box;

}

.med-form-col-1-8 label,

.med-form-col-2-8 label,

.med-form-col-3-8 label,

.med-form-col-4-8 label,

.med-form-col-5-8 label,

.med-form-col-6-8 label,

.med-form-col-7-8 label,

.med-form-col-8-8 label,

{

display:block !important;

width:100% !important;

margin:0 !important;

float:none !important;

}

.med-form-item.large, .med-form-item.large .drp { width:100%; }

.med-form-item.medium, .med-form-item.medium .drp { width:75%; }

.med-form-item.small, .med-form-item.small .drp { width:55%; }

.frmlbl { color: #50505b; padding: 0px 10px 0px 0px; font-size: 14px; font-weight:400; !important }

.clr { clear:both; }

@media only screen and (max-width:600px) {

.med-form-col-1-8,

.med-form-col-2-8,

.med-form-col-3-8,

.med-form-col-4-8,

.med-form-col-5-8,

.med-form-col-6-8,

.med-form-col-7-8,

.med-form-col-8-8

{

display:block !important;

width:100% !important;

margin:0 !important;

float:none !important;

}

.btn { height: 50px; margin: 0; padding: 0 20px; vertical-align: middle; background: #9c9c9c; border: 0; font-family: 'Raleway', sans-serif; font-size: 16px; font-weight: 300; line-height: 50px; color: #fff; -moz-border-radius: 4px; -webkit-border-radius: 4px; border-radius: 4px; text-shadow: none; -moz-box-shadow: none; -webkit-box-shadow: none; box-shadow: none; -o-transition: all .3s; -moz-transition: all .3s; -webkit-transition: all .3s; -ms-transition: all .3s; transition: all .3s; }

</style>

function Enablebutton(val) {

if (val.value.trim() != "") {

document.getElementById('#btnsavecomment').disabled = false;

$('#btnsavecomment').attr("style", "background-color:Yellow");

}

else {

document.getElementById('#btnsavecomment').disabled = true;

$('#btnsavecomment').removeAttr("style");

}

</script>

</head>

<body>

<legend>Comment</legend>

<asp:LinkButton ID="btnlink" runat="server" Text="View all" onclick="btnlink_Click" ></asp:LinkButton>

<asp:LinkButton ID="btnlinktop" runat="server" Text="Last one" onclick="btnlinktop_Click"></asp:LinkButton>

</label>

<asp:Xml ID="xmlContacts" runat="server"></asp:Xml>

<asp:TextBox ID="txtcomment" onkeyup="Enablebutton(this);" runat="server" MaxLength="500" Height="80" CssClass="drp" TextMode="MultiLine">

</asp:TextBox>

</div>

</div>

<asp:Label ID="lblmsg" runat="server"></asp:Label>

<asp:Button ID="btnsavecomment" OnClick="btnsavecomment_Click" runat="server" Text="Post comment" CssClass="btn btn-primary" />

</div>

</fieldset>

</form>

</body>

</html>

Default.aspx.cs code

using System;

using System.Linq;

using System.Data;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

string constr = "Data Source=.;Initial Catalog=Test;uid=******;pwd=**********";

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

Getcomments();

}

private string Getxml(DataTable dt)

{

DataTable dtclone = dt.Clone();

foreach (DataColumn column in dtclone.Columns)

{

column.DataType = typeof(string);

}

foreach (DataRow row in dt.Rows)

{

dtclone.ImportRow(row);

}

foreach (DataRow row in dtclone.Rows)

{

for (int i = 0; i < dtclone.Columns.Count; i++)

{

dtclone.Columns[i].ReadOnly = false;

if (string.IsNullOrEmpty(row[i].ToString()))

{

row[i] = string.Empty;

}

else

{

row[i] = Convert.ToString(row[i]).Trim();

}

DataSet dsclone = new DataSet();

dsclone.Tables.Add(dtclone);

dsclone.DataSetName = "Comments";

dsclone.Tables[0].TableName = "Comment";

return dsclone.GetXml();

}

private void Getcomments(string loadtype = "L")

{

SqlDataAdapter da = new SqlDataAdapter("select CommentId,NAME,Comment from InsComment",constr);

DataSet ds = new DataSet();

da.Fill(ds);

if (ds != null)

{

if (ds.Tables.Count > 0)

{

if (ds.Tables[0].Rows.Count > 0)

{

lbltotcomment.Text = "Comments " + Convert.ToString(ds.Tables[0].Rows.Count);

var dt = ds.Tables[0];

if (loadtype == "L")

{

dt= ds.Tables[0].AsEnumerable()

.Where((r, i) => i >= dt.Rows.Count-1).CopyToDataTable();

}

string xml = Getxml(dt);

btnlink.Visible = true;

btnlinktop.Visible = true;

xmlContacts.DocumentContent = xml;

xmlContacts.TransformSource = Server.MapPath("~/XSLT/History.xslt");

}

else

{

lbltotcomment.Text = "Comments 0";

btnlink.Visible = false;

btnlinktop.Visible = false;

}

else

{

lbltotcomment.Text = "Comments 0";

btnlink.Visible = false;

}

protected void btnsavecomment_Click(object sender, EventArgs e)

{

try

{

using (SqlConnection connection = new SqlConnection(constr))

{

connection.Open();

SqlCommand myCommand = new SqlCommand("Insert into InsComment (NAME,Comment) values ('Varun',@Comment)", connection);

myCommand.Parameters.Add("@Comment", SqlDbType.VarChar, 500);

myCommand.Parameters["@Comment"].Value = txtcomment.Text.Trim();

myCommand.CommandType = CommandType.Text;

int res = myCommand.ExecuteNonQuery();

connection.Close();

if (res > 0)

{

txtcomment.Text = string.Empty;

Getcomments();

lblmsg.Text = "Save Successfully";

}

else

{

lblmsg.Text = "Data Not Saved";

}

catch (Exception ex)

{

lblmsg.Text = ex.Message.ToString();

}

protected void btnlinktop_Click(object sender, EventArgs e)

{

Getcomments();

btnlinktop.Enabled = false;

btnlink.Enabled = true;

}

protected void btnlink_Click(object sender, EventArgs e)

{

Getcomments("A");

btnlinktop.Enabled = true;

btnlink.Enabled = false;

}

OutPut

Learn C# ASP.NET MVC WCF SQL Angular

Tuesday, March 29, 2016

Comment Box in ASP.NET C#