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Asp.net GridView控件使用常用范例

发布时间:2016-03-13   编辑:www.jquerycn.cn
为大家介绍GridView控件应用的一些例子,包括基本应用、排序、自带分页、显示颜色与删除颜色、Gridview的导出等内容,有兴趣的朋友,可以参考下。

1、前台.aspx
 

复制代码 代码示例:
<asp:Label ID="tplb" runat="server" Text="总页数:"></asp:Label>
<asp:Label ID="lblPageCount" runat="server" Text=""></asp:Label>
<asp:Label ID="curLabel" runat="server" Text="当前页:"></asp:Label>
<asp:Label ID="lblPage" Text="1" runat="server"></asp:Label>
<asp:LinkButton ID="lblFirstButton" runat="server" OnClick="lblFirstButton_Click" >|<</asp:LinkButton>
<asp:LinkButton ID="lblPreButton" runat="server" OnClick="lblPreButton_Click" ><</asp:LinkButton>
<asp:LinkButton ID="lblNextButton" runat="server" OnClick="lblNextButton_Click" >></asp:LinkButton>
<asp:LinkButton ID="lblLastButton" runat="server" OnClick="lblLastButton_Click" >>|</asp:LinkButton>
<asp:DropDownList ID="ddlPage" runat="server" Width="40px" AutoPostBack="True"
      OnSelectedIndexChanged="ddlPage_SelectedIndexChanged">
<asp:ListItem>10</asp:ListItem>
<asp:ListItem>15</asp:ListItem>
<asp:ListItem>20</asp:ListItem>
<asp:ListItem>30</asp:ListItem>
</asp:DropDownList>
<asp:Label ID="PageSizeLabel" runat="server" Text="条/页"></asp:Label>

2、后台.cs
 

复制代码 代码示例:
#region分页
protected void BindFollowExamInfoGridView(int PersonID)
  {
    int currentpage = Convert.ToInt32(lblPage.Text);
    DataTable dt = new DataTable();
    dt = feibf.GetByPersonIDFollowExamInfo(PersonID);  //查询指定人的随访信息记录
    if (dt.Rows.Count > 0)
    {
      FollowExamInfoGridView.DataSource = dt;
      FollowExamInfoGridView.DataBind();
      PagedDataSource ps = new PagedDataSource();
      ps.DataSource = dt.DefaultView;
      ps.AllowPaging = true;
      ps.PageSize = Convert.ToInt32(ddlPage.SelectedValue);
      lblPageCount.Text = ps.PageCount.ToString();
      this.lblPreButton.Enabled = true;
      this.lblNextButton.Enabled = true;
      ps.CurrentPageIndex = currentpage - 1;
      if (currentpage == 1)
      {
        this.lblPreButton.Enabled = false;
        this.lblFirstButton.Enabled = false;
      }
      else
      {
        this.lblPreButton.Enabled = true;
        this.lblFirstButton.Enabled = true;
      }
      if (currentpage == ps.PageCount)
      {
        this.lblNextButton.Enabled = false;
        this.lblLastButton.Enabled = false;
      }
      else
      {
        this.lblNextButton.Enabled = true;
        this.lblLastButton.Enabled = true;
      }
      FollowExamInfoGridView.DataSource = ps;
      FollowExamInfoGridView.DataBind();
    }
    
  }
  protected void lblPreButton_Click(object sender, EventArgs e)
  {
    this.lblPage.Text = Convert.ToString(Convert.ToUInt32(lblPage.Text) - 1);
    BindFollowExamInfoGridView(Convert.ToInt32(Request.QueryString["PersonID"]));
  }
  protected void lblNextButton_Click(object sender, EventArgs e)
  {
    this.lblPage.Text = Convert.ToString(Convert.ToUInt32(lblPage.Text) + 1);
    BindFollowExamInfoGridView(Convert.ToInt32(Request.QueryString["PersonID"]));
  }
  protected void lblFirstButton_Click(object sender, EventArgs e)
  {
    this.lblPage.Text = "1";
    BindFollowExamInfoGridView(Convert.ToInt32(Request.QueryString["PersonID"]));
  }
  protected void lblLastButton_Click(object sender, EventArgs e)
  {
    this.lblPage.Text = lblPageCount.Text;
    BindFollowExamInfoGridView(Convert.ToInt32(Request.QueryString["PersonID"]));
  }
  protected void ddlPage_SelectedIndexChanged(object sender, EventArgs e)
  {
    lblPage.Text = "1";
    BindFollowExamInfoGridView(Convert.ToInt32(Request.QueryString["PersonID"]));
  }
#endregion

3、排序
 

复制代码 代码示例:
Allowsort = "true"
sortExpression = "ID"
DataView dv = SortBindGrid(dt);
#region排序
  protected void FollowExamInfoGridView_Sorting(object sender, GridViewSortEventArgs e)
  {
    ViewState["sortexpression"] = e.SortExpression;
    if (ViewState["sortdirection"] == null)
    {
      ViewState["sortdirection"] = "asc";
    }
    else
    {
      if (ViewState["sortdirection"].ToString() == "asc")
      {
        ViewState["sortdirection"] = "desc";
      }
      else
      {
        ViewState["sortdirection"] = "asc";
      }
    }
   
    BindFollowExamInfoGridView(Convert.ToInt32(HiddenPersonID.Value));
  }
  public DataView SortBindGrid(DataTable table)
  {
    if (table != null)
    {
      DataView dv = table.DefaultView;
      if (ViewState["sortexpression"] != null && ViewState["sortdirection"] != null)
      {
        dv.Sort = ViewState["sortexpression"].ToString() + " " + ViewState["sortdirection"].ToString();
      }
      return dv;
    }
    else
    {
      return null;
    }
  }
  #endregion

 

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