editad.aspx.cs

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using System;
using System.Web.UI.WebControls;
using System.Text.RegularExpressions;

using AspNet.StarterKits.Classifieds.BusinessLogicLayer;

public partial class EditAd_aspx : System.Web.UI.Page
{
	public int NumPostBacks
	{
		get
		{
			if (ViewState["NumPostBacks"] != null)
				return (int)ViewState["NumPostBacks"];
			else
			{
				ViewState["NumPostBacks"] = 0;
				return 0;
			}
		}
		set
		{
			ViewState["NumPostBacks"] = value;
		}
	}
	private string UrlReferrer
	{
		get
		{
			return ViewState["UrlReferrer"] as string;
		}
		set
		{
			ViewState["UrlReferrer"] = value;
		}

	}

	protected void CancelButton_Click(object sender, EventArgs e)
	{
		ReturnToPreviousPage();
	}
	protected void AdDataSource_Updated(object sender, ObjectDataSourceStatusEventArgs e)
	{
		ReturnToPreviousPage();
	}
	protected void ChangeCategoryButton_Click(object sender, EventArgs e)
	{
		ChangeCategoryPanel.Visible = true;
		AdFormView.Enabled = false;
	}

	protected void ChangeCategoryCancelButton_Click(object sender, EventArgs e)
	{
		ChangeCategoryPanel.Visible = false;
		AdFormView.Enabled = true;
	}
	protected void ChangeCategoryOkButton_Click(object sender, EventArgs e)
	{
		if (CategoryDropDown.SelectedCategoryId != DefaultValues.CategoryIdMinValue)
		{
			int adId = Convert.ToInt32(this.AdFormView.DataKey.Value);
			AdsDB.UpdateAdCategory(adId, CategoryDropDown.SelectedCategoryId);
			AdFormView.DataBind();
		}

		ChangeCategoryPanel.Visible = false;
		AdFormView.Enabled = true;
	}
	protected void AdDataSource_Selected(object sender, ObjectDataSourceStatusEventArgs e)
	{
		bool adValid = false;
		AdsDataComponent.AdsRow ad = e.ReturnValue as AdsDataComponent.AdsRow;
		if (ad != null)
		{
			if (User.IsInRole(DefaultValues.AdministratorRole) || ad.MemberId == Profile.MemberId)
			{
				adValid = true;
				string adIdString = ad.Id.ToString();
				CategoryDropDown.CurrentCategoryId = ad.CategoryId;
				ManagePhotosLink.NavigateUrl = "~/ManagePhotos.aspx?id=" + adIdString;
				ShowAdLink.NavigateUrl = "~/ShowAd.aspx?id=" + adIdString;
			}
		}

		if (!adValid)
		{
			ReturnToPreviousPage();
		}
	}

	protected void ReturnToPreviousPage()
	{
		string referrer = UrlReferrer;
		if (referrer != null)
			Response.Redirect(referrer);
		else
			Response.Redirect("~/MyAds.aspx", true);
	}

	protected void Page_Load(object sender, EventArgs e)
	{
		// Check if the URL querystring contains a valid ad.
		int adId = DefaultValues.IdNullValue;
		string adIdQs = Request.QueryString["id"];
		if (adIdQs == null || !Int32.TryParse(adIdQs, out adId))
		{
			Response.Redirect("~/MyAds.aspx");
		}

		// Limit Description text.
		TextBox DescriptionTextBox = AdFormView.FindControl("DescriptionTextBox") as TextBox;
		DescriptionTextBox.Attributes.Add("onkeydown", "textCounter(this,500);");
		DescriptionTextBox.Attributes.Add("onkeyup", "textCounter(this,500);");

		if (!Page.IsPostBack)
		{
			ManagePhotosLinkPanel.Visible = SiteSettings.GetSharedSettings().AllowImageUploads;
			if (Request.UrlReferrer != null)
				this.UrlReferrer = Request.UrlReferrer.ToString();
		}
		else
			NumPostBacks++;

		int goBackSteps = NumPostBacks + 1;
		BackLink.NavigateUrl = String.Format("javascript:history.go(-{0});", goBackSteps);
	}

	protected void Page_PreRender(object sender, EventArgs e)
	{
		String truncateScript = "function textCounter(elem, maxLimit) {if (elem.value.length > maxLimit){ elem.value = m.value.substring(0, maxLimit); } } \r\n";
		Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "TruncateScript", truncateScript, true);
	}
	protected void ValidLocationRequired_ServerValidate(object source, ServerValidateEventArgs args)
	{
		LocationDropDown_ascx LocationDropDown = AdFormView.FindControl("LocationDropDown") as LocationDropDown_ascx;
		args.IsValid = LocationDropDown != null && !LocationDropDown.CurrentLocation.Equals(String.Empty);
	}

	protected void PriceValidator_ServerValidate(object source, ServerValidateEventArgs args)
	{
		decimal p = -1;
		TextBox PriceTextBox = AdFormView.FindControl("PriceTextBox") as TextBox;
		if (decimal.TryParse(PriceTextBox.Text, out p))
		{
			args.IsValid = (p >= 0);
		}
		else
			args.IsValid = false;
	}
	protected void URLValidator_ServerValidate(object source, ServerValidateEventArgs args)
	{
		args.IsValid = false;
		TextBox URLTextBox = AdFormView.FindControl("URLTextBox") as TextBox;
		if (URLTextBox != null && !URLTextBox.Text.Equals(String.Empty))
		{
			try
			{
				Uri uri = new Uri(URLTextBox.Text);
				if (uri.IsWellFormedOriginalString() &
					(uri.Scheme == "http" | uri.Scheme == "https"))
				{
					args.IsValid = true;
				}
			}
			catch
			{
			}
		}
		else
		{
			// Empty URL is okay.
			args.IsValid = true;
		}
	}
	protected void AdFormView_ItemUpdating(object sender, FormViewUpdateEventArgs e)
	{
		if (!Page.IsValid)
			e.Cancel = true;
	}
}