presentationutils.cs

来自「BugNET is an issue tracking and project 」· CS 代码 · 共 106 行

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using BugNET.Providers.ResourceProviders;

namespace BugNET.UserInterfaceLayer
{
    public class PresentationUtils
    {

        /// <summary>
        /// Gets the error message resource.
        /// </summary>
        /// <param name="key">The key.</param>
        /// <returns></returns>
        public static string GetErrorMessageResource(string key)
        {
            DBResourceProvider res = new DBResourceProvider("ErrorMessages");
            return res.GetObject(key, System.Threading.Thread.CurrentThread.CurrentUICulture).ToString();  
        }
        /// <summary>
        /// Sets the pager button states.
        /// </summary>
        /// <param name="gridView">The grid view.</param>
        /// <param name="gvPagerRow">The gv pager row.</param>
        /// <param name="page">The page.</param>
        public static void SetPagerButtonStates(GridView gridView, GridViewRow gvPagerRow, Page page)
        {

            int pageIndex = gridView.PageIndex;
            int pageCount = gridView.PageCount;

            ImageButton btnFirst = (ImageButton)gvPagerRow.FindControl("btnFirst");
            ImageButton btnPrevious = (ImageButton)gvPagerRow.FindControl("btnPrevious");
            ImageButton btnNext = (ImageButton)gvPagerRow.FindControl("btnNext");
            ImageButton btnLast = (ImageButton)gvPagerRow.FindControl("btnLast");

            btnFirst.Enabled = btnPrevious.Enabled = (pageIndex != 0);
            btnNext.Enabled = btnLast.Enabled = (pageIndex < (pageCount - 1));

            DropDownList ddlPageSelector = (DropDownList)gvPagerRow.FindControl("ddlPages");
            ddlPageSelector.Items.Clear();
            for (int i = 1; i <= gridView.PageCount; i++)
            {
                ddlPageSelector.Items.Add(i.ToString());
            }

            ddlPageSelector.SelectedIndex = pageIndex;

            Label lblPageCount = (Label)gvPagerRow.FindControl("lblPageCount");
            lblPageCount.Text = pageCount.ToString();

            //ddlPageSelector.SelectedIndexChanged += delegate
            //{
            //    gridView.PageIndex = ddlPageSelector.SelectedIndex;
            //    gridView.DataBind();
            //};

        }

        /// <summary>
        /// Sets the sort image states.
        /// </summary>
        /// <param name="gridView">The grid view.</param>
        /// <param name="row">The row.</param>
        /// <param name="sortField">The sort field.</param>
        /// <param name="sortAscending">if set to <c>true</c> [sort ascending].</param>
        public static void SetSortImageStates(GridView gridView, GridViewRow row,int columnStartIndex, string sortField, bool sortAscending)
        {
            for (int i = columnStartIndex; i < row.Cells.Count; i++)
            {
                TableCell tc = row.Cells[i];
                if (tc.HasControls())
                {
                    // search for the header link  
                    LinkButton lnk = (LinkButton)tc.Controls[0];
                    if (lnk != null)
                    {
                        // inizialize a new image
                        System.Web.UI.WebControls.Image img = new System.Web.UI.WebControls.Image();
                        // setting the dynamically URL of the image
                        img.ImageUrl = "~/images/" + (sortAscending ? "bullet_arrow_up" : "bullet_arrow_down") + ".gif";
                        img.CssClass = "icon";
                        // checking if the header link is the user's choice
                        if (sortField == lnk.CommandArgument)
                        {
                            // adding a space and the image to the header link
                            //tc.Controls.Add(new LiteralControl(" "));
                            tc.Controls.Add(img);
                        }


                    }
                }
            }
            
        }
    }
}