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BOOK: Beginning ASP.NET Web Pages with WebMatrix
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Old July 3rd, 2012, 04:50 AM
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Question Comment Section in WebMatrix

Hi Guys. i have created a comment section in Details page but when someone comments in one special page in can be seen in every page of Details page i don't know where is the problem. thanks for helping me.
here's the code

@{
dynamic item = null;
if(!Request["id"].IsEmpty() && Request["id"].IsInt()) {
var db = Database.Open("Classifieds");
var sql = "SELECT * FROM Items, Categories WHERE Id = @0";
item = db.QuerySingle(sql, Request["id"]);
Page.Title = item.Title + "-" + item.Id;
}


if(IsPost) {
if(Request["name"].IsEmpty()) {
ModelState.AddError("name", "Please provide a name");
}
if(Request["email"].IsEmpty()) {
ModelState.AddError("email", "Please enter your E-mail");
}
if(!Request["email"].IsEmpty() && !Functions.IsValidEmail(Request["email"])) {
ModelState.AddError("email","Please provide a valid email");
}
if(Request["comment"].IsEmpty()) {
ModelState.AddError("comment", "Please fill the comment form");
}
if(!ModelState.IsValid) {
ModelState.AddFormError("Please fix the errors below before submitting your comment");
}
else {
var db = Database.Open("Classifieds");
var msql = @"INSERT INTO Comments (Name, Email, Comment, DatePosted) VALUES (@0, @1, @2, GetDate())";
var parameters = new[]{Request["name"],Request["email"],Request["comment"]};
db.Execute(msql, parameters) ;
Response.Redirect("~/Details.cshtml?id=" + item.Id);
}
}
var dbs = Database.Open("Classifieds");
var tsql = @"SELECT Id, Name, Email, Comment, DatePosted FROM Comments";
var data = dbs.Query(tsql).OrderByDescending(c => c.Id);

}

<!DOCTYPE html>

<html lang="en">
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript">
function resetForm() {
document.getElementById("name0").value = "";
document.getElementById("email0").value = "";
document.getElementById("comment0").value = "";
}
</script>
</head>
<body>
@if(item != null) {
<h2>Details</h2>
<h3>@item.Title</h3>
<p>@item.Description</p>
<p>Price: @item.Price.ToString("c")</p>
<p>Condition: @item.Condition</p>
<p>Posted on @item.DatePosted.ToString("D") in the @item.Category category</p>
}




<br><br><hr>

<div>@Html.ValidationSummary(true)</div>

<form id="post-advert" method="post" action="@Href("~/Details.cshtml?id=" + item.Id)">
<div data-href="@Href("~/Details.cshtml?id=" + item.Id)">
@if(item.Id == Request["id"].AsInt()) {
foreach(var dt in data) {
<div id="namecomment">Posted by @dt.Name at @dt.DatePosted</div><br>
<div id="commentsection">@dt.Comment</div><hr>
Cache.Remove(dt.ToString());
}
}

</div><br><br><br>

<div><label for="name">Name* : </label></div>

<div><input type="text" name="name" id="name0" value="@Request["name"]">
@Html.ValidationMessage("name")
</div>

<div><label for="email">E-mail* : </label></div>
<div>

<input type="text" name="email" id="email0" value="@Request["email"]">
@Html.ValidationMessage("email")
</div>

<div><label for="comment">Comment* : </label></div>
<div>
<textarea name="comment" cols="40" rows="10" id="comment0" >@Request["comment"]</textarea>
@Html.ValidationMessage("comment")
</div><br>
<div><input type="submit" value="Post Comment"></div>
</form>
</body>
</html>





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