传导性听力损失手术:GridView 使用方法总结（二）

来源：百度文库编辑：中财网时间：2024/04/29 08:12:34

11.GridView实现用“...”代替超长字符串：

解决方法：数据绑定后过滤每一行即可

代码 for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
 {
 DataRowView mydrv;
 string gIntro;
 if (GridView1.PageIndex == 0)
 {
 mydrv = myds.Tables["飞狐工作室"].DefaultView[i];//表名
 gIntro = Convert.ToString(mydrv["家庭住址"]);//所要处理的字段
 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
 }
 else
 {
 mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
 gIntro = Convert.ToString(mydrv["家庭住址"]);
 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
 }
 }

调用的方法：

代码 public string SubStr(string sString, int nLeng)
 {
 if (sString.Length <= nLeng)
 {
 return sString;
 }
 string sNewStr = sString.Substring(0, nLeng);
 sNewStr = sNewStr + "...";
 return sNewStr;
 }

后台全部代码：

代码 using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
 SqlConnection sqlcon;
 SqlCommand sqlcom;
 string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
 protected void Page_Load(object sender, EventArgs e)
 {
 if (!IsPostBack)
 {
 ViewState["SortOrder"] = "身份证号码";
 ViewState["OrderDire"] = "ASC";
 bind();
 }
 }
 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
 {
 GridView1.EditIndex = e.NewEditIndex;
 bind();
 }
 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
 {
 string sqlstr = "delete from 飞狐工作室 where 身份证号码='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
 sqlcon = new SqlConnection(strCon);
 sqlcom = new SqlCommand(sqlstr,sqlcon);
 sqlcon.Open();
 sqlcom.ExecuteNonQuery();
 sqlcon.Close();
 bind();
 }
 protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
 {
 sqlcon = new SqlConnection(strCon);
 string sqlstr = "update 飞狐工作室 set 姓名='"
 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
 + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
 sqlcom=new SqlCommand(sqlstr,sqlcon);
 sqlcon.Open();
 sqlcom.ExecuteNonQuery();
 sqlcon.Close();
 GridView1.EditIndex = -1;
 bind();
 }
 protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
 {
 GridView1.EditIndex = -1;
 bind();
 }
 public void bind()
 {
 string sqlstr = "select top 5 * from 飞狐工作室";
 sqlcon = new SqlConnection(strCon);
 SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
 DataSet myds = new DataSet();
 sqlcon.Open();
 myda.Fill(myds, "飞狐工作室");
 GridView1.DataSource = myds;
 GridView1.DataKeyNames = new string[] { "身份证号码" };
 GridView1.DataBind();
 for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
 {
 DataRowView mydrv;
 string gIntro;
 if (GridView1.PageIndex == 0)
 {
 mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
 gIntro = Convert.ToString(mydrv["家庭住址"]);
 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
 }
 else
 {
 mydrv = myds.Tables["飞狐工作室"].DefaultView[i + (5 * GridView1.PageIndex)];
 gIntro = Convert.ToString(mydrv["家庭住址"]);
 GridView1.Rows[i].Cells[3].Text = SubStr(gIntro, 2);
 }
 }

 sqlcon.Close();
 }
 public string SubStr(string sString, int nLeng)
 {
 if (sString.Length <= nLeng)
 {
 return sString;
 }
 string sNewStr = sString.Substring(0, nLeng);
 sNewStr = sNewStr + "...";
 return sNewStr;
 }
 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
 {
 //如果是绑定数据行
 if (e.Row.RowType == DataControlRowType.DataRow)
 {
 ////鼠标经过时，行背景色变
 //e.Row.Attributes.Add("onmouseover", "this.style.backgroundColor='#E6F5FA'");
 ////鼠标移出时，行背景色变
 //e.Row.Attributes.Add("onmouseout", "this.style.backgroundColor='#FFFFFF'");

 ////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)
 //{
 // ((LinkButton)e.Row.Cells[6].Controls[0]).Attributes.Add("onclick", "javascript:return confirm('你确认要删除："" + e.Row.Cells[1].Text + ""吗?')");
 //}

 }
 if (e.Row.RowIndex != -1)
 {
 int id = e.Row.RowIndex + 1;
 e.Row.Cells[0].Text = id.ToString();
 }

 }
}

11.GridView一般换行与强制换行：

首先设置 ItemStyle-Width="100" />
gridview里有一列绑定的数据很长，显示的时候在一行里面显示，页面拉得很宽。
原因是连续英文段为一个整体导致的，在RowDataBound中添加上了一句e.Row.Cells[2].Style.Add("word-break", "break-all")就可以。

如果要给所有的列增加此属性：

代码 protected void Page_Load(object sender, EventArgs e)
    {
        //正常换行
        GridView1.Attributes.Add("style", "word-break:keep-all;word-wrap:normal");
        //下面这行是自动换行
        GridView1.Attributes.Add("style", "word-break:break-all;word-wrap:break-word");
        if (!IsPostBack)
        {
             bind();//调用数据绑定即可
        }
    }

总之：善用CSS的word-break:break-all;word-wrap:break-word属性即可，这个属性是通用的对于顽固的南换行问题都可以解决，不局限于GridView。

12.GridView显示隐藏某一列：

本方案为月儿独创，不同于网上其他方式，我觉得用一个CheckBox更人性化，这样可以隐藏不必要的列，让用户自己选择需要出现的列，在处理多列时这是一个很好的解决方案！

效果图：
图1-开始

图2-点击显示的CheckBox后

解决方案

代码 public void bind()
    {
        string sqlstr = "select top 5 * from 飞狐工作室";
        sqlcon = new SqlConnection(strCon);
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
        DataSet myds = new DataSet();
        sqlcon.Open();
        myda.Fill(myds, "飞狐工作室");
        GridView1.DataSource = myds;
        GridView1.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        sqlcon.Close();
        GridView1.Columns[3].Visible = false;//一开始隐藏
        CheckBox1.Checked = false;//如果不这样后面的代码会把他True
    }

双击CheckBox1，在CheckedChanged方法里写上代码，最后代码如下：

代码 protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
         GridView1.Columns[3].Visible=! GridView1.Columns[3].Visible;
         Response.Write("GridView1的第4列现在的显示隐藏状态是："+GridView1.Columns[3].Visible.ToString());
    }

注意：CheckBox1的AutoPostBack要True！

后台全部代码如下：

前台代码如下：

                   ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >
                        BackColor="White" ForeColor="#000066" />

                            DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            DataField="姓名" HeaderText="用户姓名" />
                            DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                            DataField="家庭住址" HeaderText="家庭住址"  />
                            HeaderText="选择" ShowSelectButton="True" />
                            HeaderText="编辑" ShowEditButton="True" />
                            HeaderText="删除" ShowDeleteButton="True" />

                        ForeColor="#000066" />
                        BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                        BackColor="#006699" Font-Bold="True" ForeColor="White" />

        ID="CheckBox1" runat="server" AutoPostBack="True" Font-Size="12px"
            OnCheckedChanged="CheckBox1_CheckedChanged" Text="显示隐藏家庭住址" />

13.GridView弹出新页面/弹出制定大小位置新窗口：

方案一：简单的方法，新窗口不固定大小

代码 ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >
                        BackColor="White" ForeColor="#000066" />

                            DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                            DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                            DataField="家庭住址" HeaderText="家庭住址"  />
                            HeaderText="姓名" Text="姓名" DataNavigateUrlFields="姓名" DataNavigateUrlFormatString="Default6.aspx?GoodsID={0}" Target="mainframe" NavigateUrl="~/Default6.aspx" DataTextField="姓名" >

                            HeaderText="选择" ShowSelectButton="True" />
                            HeaderText="编辑" ShowEditButton="True" />
                            HeaderText="删除" ShowDeleteButton="True" />

                        ForeColor="#000066" />
                        BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                        BackColor="#006699" Font-Bold="True" ForeColor="White" />

DataNavigateUrlFields是链接的字段名，DataNavigateUrlFormatString是路径。

方案二：精确控制弹出窗口大小位置

代码 DataNavigateUrlField="EmployeeID" DataNavigateUrlFormatString="javascript:varwin=window.open('detail.aspx?ID={0}',null,'width=300,height=200');window.Close();"
DataTextField="LastName" HeaderText="LastName"> 弹出窗口大全 http://blog.csdn.net/21aspnet/archive/2004/10/25/150231.aspx

这里是怎么实现确认对话框的：

http://www.cnblogs.com/sufei/archive/2009/06/10/1500254.html

14.GridView固定表头(不用javascript只用CSS!，很好用)：

前台代码解决方法：

代码 html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

xmlns="http://www.w3.org/1999/xhtml" >
runat="server">
 GridView固定表头 清清月儿http://blog.csdn.net/21aspnet 


style="font-size=12px">
 id="form1" runat="server">
 style="overflow-y: scroll; height: 200px;width:300px" id="dvBody">
 ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
 BackColor="White" ForeColor="#000066" />

 DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
 DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
 DataField="家庭住址" HeaderText="家庭住址" />
 DataField="姓名" HeaderText="姓名" />


 ForeColor="#000066" />
 BackColor="#669999" Font-Bold="True" ForeColor="White" />
 BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
 BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>

用法：CSS设如上的样式，HeaderStyle加CssClass="Freezing，套住GridView的Div设置高度宽度

15.GridView合并表头多重表头无错完美版（以合并3列3行举例）

后台代码

代码

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Drawing;
public partial class _Default : System.Web.UI.Page
{
    SqlConnection sqlcon;
    SqlCommand sqlcom;
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            bind();

        }
    }
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update 飞狐工作室 set 姓名='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom=new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        bind();
    }
    public void bind()
    {
        string sqlstr = "select top 10 * from 飞狐工作室";
        sqlcon = new SqlConnection(strCon);
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
        DataSet myds = new DataSet();
        sqlcon.Open();
        myda.Fill(myds, "飞狐工作室");
        GridView1.DataSource = myds;
        GridView1.DataKeyNames = new string[] { "身份证号码" };
        GridView1.DataBind();
        sqlcon.Close();
    }

//这里就是解决方案
    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
    {
        switch (e.Row.RowType)
        {
            case DataControlRowType.Header:
                //第一行表头
                TableCellCollection tcHeader = e.Row.Cells;
                tcHeader.Clear();
                tcHeader.Add(new TableHeaderCell());
                tcHeader[0].Attributes.Add("rowspan", "3"); //跨Row
                tcHeader[0].Attributes.Add("bgcolor", "white");
                tcHeader[0].Text = "";
                tcHeader.Add(new TableHeaderCell());
                //tcHeader[1].Attributes.Add("bgcolor", "Red");
                tcHeader[1].Attributes.Add("colspan", "6"); //跨Column
                tcHeader[1].Text = "全部信息";

                //第二行表头
                tcHeader.Add(new TableHeaderCell());
                tcHeader[2].Attributes.Add("bgcolor", "DarkSeaGreen");
                tcHeader[2].Text = "身份证号码";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[3].Attributes.Add("bgcolor", "LightSteelBlue");
                tcHeader[3].Attributes.Add("colspan", "2");
                tcHeader[3].Text = "基本信息";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[4].Attributes.Add("bgcolor", "DarkSeaGreen");
                tcHeader[4].Text = "福利";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[5].Attributes.Add("bgcolor", "LightSteelBlue");
                tcHeader[5].Attributes.Add("colspan", "2");
                tcHeader[5].Text = "联系方式";

                //第三行表头
                tcHeader.Add(new TableHeaderCell());
                tcHeader[6].Attributes.Add("bgcolor", "Khaki");
                tcHeader[6].Text = "身份证号码";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[7].Attributes.Add("bgcolor", "Khaki");
                tcHeader[7].Text = "姓名";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[8].Attributes.Add("bgcolor", "Khaki");
                tcHeader[8].Text = "出生日期";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[9].Attributes.Add("bgcolor", "Khaki");
                tcHeader[9].Text = "薪水";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[10].Attributes.Add("bgcolor", "Khaki");
                tcHeader[10].Text = "家庭住址";
                tcHeader.Add(new TableHeaderCell());
                tcHeader[11].Attributes.Add("bgcolor", "Khaki");
                tcHeader[11].Text = "邮政编码";
                break;
        }
    }
}

前台代码

代码

html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

xmlns="http://www.w3.org/1999/xhtml" >
runat="server">
 GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet 

>
 id="form1" runat="server">
 >
 ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated" >
 BackColor="White" ForeColor="#000066" />

 HeaderText="编辑" ShowEditButton="True" />
 DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
 DataField="姓名" HeaderText="姓名" />
 DataField="出生日期" HeaderText="邮政编码" />
 DataField="起薪" HeaderText="起薪" />
 DataField="家庭住址" HeaderText="家庭住址" />
 DataField="邮政编码" HeaderText="邮政编码" />


 ForeColor="#000066" />
 BackColor="#669999" Font-Bold="True" ForeColor="White" />
 BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
 BackColor="#006699" Font-Bold="True" ForeColor="White" />

16.GridView突出显示某一单元格（例如金额低于多少，分数不及格等）

解决方案：主要是绑定后过滤

代码

GridView1.DataBind();
 for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
 {
 DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i];
 string score = Convert.ToString(mydrv["起薪"]);
 if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
 {
 GridView1.Rows[i].Cells[4].BackColor = System.Drawing.Color.Red;
 }
 }
 sqlcon.Close();

所有后台代码

代码

前台代码：

代码

html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

xmlns="http://www.w3.org/1999/xhtml" >
id="Head1" runat="server">
 GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet 

>
 id="form1" runat="server">
 >
 ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="3" OnRowEditing="GridView1_RowEditing"
 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" >
 BackColor="White" ForeColor="#000066" />

 HeaderText="编辑" ShowEditButton="True" />
 DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
 DataField="姓名" HeaderText="姓名" />
 DataField="出生日期" HeaderText="邮政编码" />
 DataField="起薪" HeaderText="起薪" DataFormatString="{0:C}" HtmlEncode="false"/>
 DataField="家庭住址" HeaderText="家庭住址" />
 DataField="邮政编码" HeaderText="邮政编码" />


 ForeColor="#000066" />
 BackColor="#669999" Font-Bold="True" ForeColor="White" />
 BackColor="White" ForeColor="#000066" HorizontalAlign="Left" CssClass="ms-formlabel DataGridFixedHeader"/>
 BackColor="#006699" Font-Bold="True" ForeColor="White" />

http://blog.sina.com.cn/s/blog_70b5d92b0100qcgl.html

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