asp.net的GridView控件使用方法大全_.Net教程

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GridView控件是asp.net开发中经常用到的控件之一,本网页设计教程详细介绍GridView的使用方法。

前台.aspx
<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>&nbsp; 
<asp:LinkButton ID="lblFirstButton" runat="server" OnClick="lblFirstButton_Click" >|&lt;</asp:LinkButton>&nbsp; 
<asp:LinkButton ID="lblPreButton" runat="server" OnClick="lblPreButton_Click" >&lt;</asp:LinkButton>&nbsp; 
<asp:LinkButton ID="lblNextButton" runat="server" OnClick="lblNextButton_Click" >&gt;</asp:LinkButton>&nbsp;
<asp:LinkButton ID="lblLastButton" runat="server" OnClick="lblLastButton_Click" >&gt;|</asp:LinkButton>&nbsp; 
<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> 

后台  #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

排序
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

=======自带分页
  #region自带分页

protected void FollowExamInfoGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
  {
    FollowExamInfoGridView.PageIndex = e.NewPageIndex;
    BindFollowExamInfoGridView(Convert.ToInt32(HiddenPersonID.Value));
  }
#endregion

  选中Grid View 的实现
  #region实现选中行
   <SelectedRowStyle BackColor="AliceBlue" ForeColor="Gray" />
   <asp:CommandField ShowSelectButton="True"/>
if (e.Row.RowType == DataControlRowType.DataRow)
  {
      e.Row.Attributes.Add("onclick", "this.cells[0].childNodes[0].click()");
}
protected void GridViewRegiment_SelectedIndexChanged(object sender, EventArgs e)
{
    GridViewRow row = GridViewRegiment.SelectedRow;
    int RegimentID = Convert.ToInt32(row.Cells[1].Text);
    Response.Redirect("UpdateRegimentation.aspx?RegimentID=" + RegimentID);
}
#endregion

显示颜色和删除
  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
  {
    //int i;
    //for (i = 0; i < GridViewRegiment.Rows.Count; i++)
    //{
      if (e.Row.RowType == DataControlRowType.DataRow)
      {
        //当有编辑列时,避免出错,要加的RowState判断
        if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
        {
          ((ImageButton)e.Row.Cells[2].FindControl("IBtndelete")).Attributes.Add("onclick", "javascript:return confirm(’你确认要删除:"" + e.Row.Cells[0].Text + ""吗?’)");
        }
        e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor=’#00A9FF’");
        e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor=’#E6F5FA’");
      }
    //}
}

GridView空的处理
  1 显示无表头的空纪录,EmptyDataText="没有记录"
  2 显示表头的空纪录
DataTable dt = new DataTable();
  dt = feibf.GetByPersonIDFollowExamInfo(PersonID);  //查询指定人的随访信息记录
    DataView dv = SortBindGrid(dt);
    if (dt.Rows.Count > 0)
    {
      FollowExamInfoGridView.DataSource = dv;
      FollowExamInfoGridView.DataBind();
    }
    else
    {
      //添加新行显示表头
      dt.Rows.Add(dt.NewRow());
      FollowExamInfoGridView.DataSource = dt;
      FollowExamInfoGridView.DataBind();
      //处理新行
      int columnCount = FollowExamInfoGridView.Rows[0].Cells.Count;
      //清除掉该空行的全部单元格
      FollowExamInfoGridView.Rows[0].Cells.Clear();
      //新建单元格对象
      FollowExamInfoGridView.Rows[0].Cells.Add(new TableCell());
      //合并单元格
      FollowExamInfoGridView.Rows[0].Cells[0].ColumnSpan = columnCount;
      //设置单元格提示内容
      FollowExamInfoGridView.Rows[0].Cells[0].Style.Value = "text-align:center";
      FollowExamInfoGridView.Rows[0].Cells[0].Text = "此人无随访信息";
    }

GridView 的导出
EnableEventValidation="false"

#region导出
 public override void VerifyRenderingInServerForm(Control control)
  {
  }
  protected void BtnPrint_Click(object sender, EventArgs e)
  {
    Response.Clear();
    Response.Buffer = true;
    Response.Charset = "GB2312";
    Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
    // 如果设置为GetEncoding("GB2312");导出的文件将会出现乱码!!!
    Response.ContentEncoding = System.Text.Encoding.UTF7;
    Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
    System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
    System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
    this.AfficheGV.RenderControl(oHtmlTextWriter);
    Response.Output.Write(oStringWriter.ToString());
    Response.Flush();
    Response.End();
  }
#endregion

  ToolTip GridView详细信息的显示
  前台
<script type="text/javascript" >
  function Tooltip(cella,cellb)
  {
    document.getElementById("dc").innerText = "详细信息:"+cellb;
    document.getElementById("id").innerText = "ID:"+cella;
    x= event.clientX+document.body.scrollLeft;
    y=event.clientY+document.body.scrollTop+20;
    toolTipLayer.style.display="inline";
    toolTipLayer.style.left=x;
    toolTipLayer.style.top=y;
  }
</script>
<div id="toolTipLayer" style=" position:absolute; display:none;
  background-color:Aqua; border-color:Blue; border-style:solid;
   border-color:Blue; border-width:1px; " >
  <table>
  <tr><td>Affiche</td></tr>
  <tr><td id ="dc"></td></tr>
  <tr><td id ="id"> </td></tr>
  </table>
</div>

后台
protected void AfficheGV_RowDataBound(object sender, GridViewRowEventArgs e)
  {
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
      if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
      {
1 e.Row.Attributes.Add("onmouseover", "Tooltip(’" +e.Row.Cells[0].Text.ToString()+ "’,’"+e.Row.Cells[1].Text.ToString()+"’)");
2 e.Row.Attributes.Add("onmouseover","javascript:Tooltip(’e.Row.Cells[0].Text’);");
3 e.Row.Attributes.Add("onmouseover", "Tooltip(’e.Row.Cells[0].Text’)");
      } }
}

#region自带编辑
  protected void GVAffiche_RowEditing(object sender, GridViewEditEventArgs e)
  {
    GVAffiche.EditIndex = e.NewEditIndex;
    BindGVAffiche();
  }
  protected void GVAffiche_RowDeleting(object sender, GridViewDeleteEventArgs e)
  {
    GVAffiche.EditIndex = -1;
    MyAffiche.DelAfficeBF( Convert.ToInt32(GVAffiche.DataKeys[e.RowIndex].Value.ToString()));
    BindGVAffiche();
  }
  protected void GVAffiche_RowUpdating(object sender, GridViewUpdateEventArgs e)
  {
    int id = Convert.ToInt32(((TextBox)(GVAffiche.Rows[e.RowIndex].Cells[0].Controls[0])).Text.ToString().Trim());
    string dc = ((TextBox)(GVAffiche.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim();
    MyAffiche.UpdateAfficheBf(id,dc);
    GVAffiche.EditIndex = -1;
    BindGVAffiche();
  }
  protected void GVAffiche_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
  {
    GVAffiche.EditIndex = -1;
    BindGVAffiche();
  }
#endregion

#region样式的控制
  protected void GVAffiche_RowDataBound(object sender, GridViewRowEventArgs e)
  {
    //首先判断是否是数据行
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
      //当有编辑列时,避免出错,要加的RowState判断
      if (e.Row.RowState == DataControlRowState.Normal || e.Row.RowState == DataControlRowState.Alternate)
      {
        ((Button)e.Row.Cells[7].FindControl("btnDel")).Attributes.Add("onclick","javascript:return confirm(’你确认删除:"" + e.Row.Cells[1].Text + ""’)");
        //当鼠标停留时更改背景色
        e.Row.Attributes.Add("onmouseover", "color=this.style.backgroundColor;this.style.backgroundColor=’#00A9FF’");
        //当鼠标移开时还原背景色
        e.Row.Attributes.Add("onmouseout","this.style.backgroundColor=color");
        GVAffiche.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");
        //GVAffiche.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");
        if (e.Row.Cells[1].Text == "444")
        {
          e.Row.Cells[1].BackColor = System.Drawing.Color.Red;
        }
      }
    }
  }
  #endregion

以上是GridView控件的一些基础使用大全,希望对大家有所用处。

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来源:模板无忧//所属分类:.Net教程/更新时间:2012-06-11
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