protected void PostMessageBtn_Click(object sender, EventArgs e)
{
if (this.MessageContent.Text == string.Empty || this.MessageContent.Text.Length > 20)
{
this.ErrorContent.Text = "Invalid message content input.";
return;
}
var context = new ChatDbEntities();
var username = this.User.Identity.Name;
var userPosting = context.AspNetUsers.SingleOrDefault(u => u.UserName == username);
if (userPosting == null)
{
this.ErrorContent.Text = "Invalid credential information.";
return;
}
var messageToPost = new Message();
messageToPost.Text = this.MessageContent.Text;
messageToPost.Author = userPosting.FirstName + " " + userPosting.LastName;
messageToPost.Creator_Id = userPosting.Id;
context.Messages.Add(messageToPost);
context.SaveChanges();
this.MessagesGrid.DataSource = context.Messages.ToList();
this.MessagesGrid.DataBind();
this.ErrorContent.Text = "Message added";
}
protected void Page_PreRender(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
var context = new ChatDbEntities();
this.MessagesGrid.DataSource = context.Messages.ToList();
this.MessagesGrid.DataBind();
}
}
protected void MessagesGrid_Sorting(object sender, GridViewSortEventArgs e)
{
if (e.SortExpression == "Author")
{
var context = new ChatDbEntities();
IQueryable<Message> data;
if (this.MessagesGrid.Attributes["CurrentSortDirAuthor"] == "ASC")
{
data = context.Messages.OrderBy(c => c.Author);
this.MessagesGrid.Attributes["CurrentSortDirAuthor"] = "DESC";
}
else
{
data = context.Messages.OrderByDescending(c => c.Author);
this.MessagesGrid.Attributes["CurrentSortDirAuthor"] = "ASC";
}
this.MessagesGrid.DataSource = data.ToList();
this.MessagesGrid.DataBind();
}
else if (e.SortExpression == "Text")
{
var context = new ChatDbEntities();
IQueryable<Message> data;
if (this.MessagesGrid.Attributes["CurrentSortDirText"] == "DESC")
{
data = context.Messages.OrderByDescending(c => c.Text);
this.MessagesGrid.Attributes["CurrentSortDirText"] = "ASC";
}
else
{
data = context.Messages.OrderBy(c => c.Text);
this.MessagesGrid.Attributes["CurrentSortDirText"] = "DESC";
}
this.MessagesGrid.DataSource = data.ToList();
this.MessagesGrid.DataBind();
}
}
protected void MessagesGrid_RowEditing(object sender, GridViewEditEventArgs e)
{
this.MessagesGrid.EditIndex = e.NewEditIndex;
var context = new ChatDbEntities();
this.MessagesGrid.DataSource = context.Messages.ToList();
this.MessagesGrid.DataBind();
}
protected void MessagesGrid_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
var authorData = (TextBox)this.MessagesGrid.Rows[e.RowIndex].FindControl("AuthorViewContent");
var context = new ChatDbEntities();
var msgId = Convert.ToInt32(authorData.Attributes["IdAttribute"]);
var msgToDelete = context.Messages
.SingleOrDefault(m => m.Id == msgId);
if (msgToDelete != null)
{
context.Messages.Remove(msgToDelete);
context.SaveChanges();
}
this.MessagesGrid.DataSource = context.Messages.ToList();
this.MessagesGrid.DataBind();
}
protected void MessagesGrid_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
var context = new ChatDbEntities();
this.MessagesGrid.EditIndex = -1;
this.MessagesGrid.DataSource = context.Messages.ToList();
this.MessagesGrid.DataBind();
}
protected void MessagesGrid_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
var authorData = (TextBox)this.MessagesGrid.Rows[e.RowIndex].FindControl("AuthorEditContent");
var textData = (TextBox)this.MessagesGrid.Rows[e.RowIndex].FindControl("TextEditContent");
var context = new ChatDbEntities();
var msgId = Convert.ToInt32(authorData.Attributes["IdAttribute"]);
var msgToEdit = context.Messages
.SingleOrDefault(m => m.Id == msgId);
if (msgToEdit != null)
{
msgToEdit.Text = textData.Text;
msgToEdit.Author = authorData.Text;
context.SaveChanges();
}
this.MessagesGrid.EditIndex = -1;
this.MessagesGrid.DataSource = context.Messages.ToList();
this.MessagesGrid.DataBind();
}