当前文件路径：BlogEngine/admin/Pages/Categories.aspx.cs

		            
  1Using#region Using
  2
  3using System;
  4using System.Collections;
  5using System.Web;
  6using System.Web.UI;
  7using System.Web.UI.WebControls;
  8using System.Web.UI.HtmlControls;
  9using BlogEngine.Core;
 10
 11#endregion
 12
 13public partial class admin_Pages_Categories : System.Web.UI.Page
 14...{
 15    /**//// <summary>
 16    /// Handles the Load event of the Page control.
 17    /// </summary>
 18    /// <param name="sender">The source of the event.</param>
 19    /// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
 20    protected void Page_Load(object sender, EventArgs e)
 21    ...{
 22        if (!Page.IsPostBack)
 23        ...{
 24            BindGrid();
 25        }
 26
 27        grid.RowEditing += new GridViewEditEventHandler(grid_RowEditing);
 28        grid.RowUpdating += new GridViewUpdateEventHandler(grid_RowUpdating);
 29        grid.RowCancelingEdit += delegate ...{ Response.Redirect(Request.RawUrl); };
 30        grid.RowDeleting += new GridViewDeleteEventHandler(grid_RowDeleting);
 31        btnAdd.Click += new EventHandler(btnAdd_Click);
 32        btnAdd.Text = Resources.labels.add + " " + Resources.labels.category.ToLowerInvariant();
 33        valExist.ServerValidate += new ServerValidateEventHandler(valExist_ServerValidate);
 34        Page.Title = Resources.labels.categories;
 35    }
 36
 37    /**//// <summary>
 38    /// Handles the ServerValidate event of the valExist control.
 39    /// </summary>
 40    /// <param name="source">The source of the event.</param>
 41    /// <param name="args">The <see cref="System.Web.UI.WebControls.ServerValidateEventArgs"/> instance containing the event data.</param>
 42    private void valExist_ServerValidate(object source, ServerValidateEventArgs args)
 43    ...{
 44        args.IsValid = true;
 45
 46        foreach (Category category in Category.Categories)
 47        ...{
 48            if (category.Title.Equals(txtNewCategory.Text.Trim(), StringComparison.OrdinalIgnoreCase))
 49                args.IsValid = false;
 50        }
 51    }
 52
 53    /**//// <summary>
 54    /// Handles the Click event of the btnAdd control.
 55    /// </summary>
 56    /// <param name="sender">The source of the event.</param>
 57    /// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
 58    void btnAdd_Click(object sender, EventArgs e)
 59    ...{
 60        if (Page.IsValid)
 61        ...{
 62            Category cat = new Category(txtNewCategory.Text, txtNewNewDescription.Text);
 63            cat.Save();
 64            Response.Redirect(Request.RawUrl, true);
 65        }
 66    }
 67
 68    /**//// <summary>
 69    /// Handles the RowDeleting event of the grid control.
 70    /// </summary>
 71    /// <param name="sender">The source of the event.</param>
 72    /// <param name="e">The <see cref="System.Web.UI.WebControls.GridViewDeleteEventArgs"/> instance containing the event data.</param>
 73    void grid_RowDeleting(object sender, GridViewDeleteEventArgs e)
 74    ...{
 75        Guid id = (Guid)grid.DataKeys[e.RowIndex].Value;
 76        Category cat = Category.GetCategory(id);
 77        
 78        // Removes all references to the category
 79        foreach (Post post in Post.Posts)
 80        ...{
 81            if (post.Categories.Contains(cat))
 82            ...{
 83                post.Categories.Remove(cat);
 84            }
 85        }
 86
 87        cat.Delete();
 88        cat.Save();
 89        Response.Redirect(Request.RawUrl);
 90    }
 91
 92    /**//// <summary>
 93    /// Handles the RowUpdating event of the grid control.
 94    /// </summary>
 95    /// <param name="sender">The source of the event.</param>
 96    /// <param name="e">The <see cref="System.Web.UI.WebControls.GridViewUpdateEventArgs"/> instance containing the event data.</param>
 97    void grid_RowUpdating(object sender, GridViewUpdateEventArgs e)
 98    ...{
 99        Guid id = (Guid)grid.DataKeys[e.RowIndex].Value;
100        TextBox textboxTitle = (TextBox)grid.Rows[e.RowIndex].FindControl("txtTitle");
101        TextBox textboxDescription = (TextBox)grid.Rows[e.RowIndex].FindControl("txtDescription");
102        Category cat = Category.GetCategory(id);
103        cat.Title = textboxTitle.Text;
104        cat.Description = textboxDescription.Text;
105        cat.Save();
106
107        Response.Redirect(Request.RawUrl);
108    }
109
110    /**//// <summary>
111    /// Handles the RowEditing event of the grid control.
112    /// </summary>
113    /// <param name="sender">The source of the event.</param>
114    /// <param name="e">The <see cref="System.Web.UI.WebControls.GridViewEditEventArgs"/> instance containing the event data.</param>
115    void grid_RowEditing(object sender, GridViewEditEventArgs e)
116    ...{
117        grid.EditIndex = e.NewEditIndex;
118        BindGrid();
119    }
120
121    /**//// <summary>
122    /// Binds the grid with all the categories.
123    /// </summary>
124    private void BindGrid()
125    ...{
126        grid.DataKeyNames = new string[] ...{ "Id" };
127        grid.DataSource = Category.Categories;
128        grid.DataBind();
129    }
130
131}
132