如何使用asp.net在gridview中突出显示搜索结果? [英] How to highlight search results in gridview using asp.net?

问题描述

我正在使用搜索框根据搜索文本对gridview进行排序.我想在输入到文本框中的gridview中突出显示匹配的文本. 这是我的aspx页面-

I am using a search box to sort my gridview according to the search text. I want to highlight the matching text in the gridview entered into the textbox. This is my aspx page-

<table>
    <tr>
      <td>
         <asp:TextBox ID="TextBox1" runat="server" Width="167px">
         </asp:TextBox>
      </td>
    </tr>
    <tr>
       <td>
           <asp:Button ID="Button1" runat="server" onclick="Button1_Click" 
                Text="Submit" Width="116px" />
       </td>
    </tr>
    <tr>
        <asp:GridView ID="GridView1" runat="server">
        </asp:GridView>
    </tr>
</table>

后面的代码

public void bind()
{
     dt = g1.return_dt("select  * from tbl1 where id is  not null  " 
           + Session["Name"] + "  order by  compname ");
     if (dt.Rows.Count > 0)
     {
         adsource = new PagedDataSource();
         adsource.DataSource = dt.DefaultView;
         adsource.PageSize = 10;
         adsource.AllowPaging = true;
         adsource.CurrentPageIndex = pos;
         btnfirst.Enabled = !adsource.IsFirstPage;
         btnprevious.Enabled = !adsource.IsFirstPage;
         btnlast.Enabled = !adsource.IsLastPage;
         btnnext.Enabled = !adsource.IsLastPage;
         GridView1.DataSource = adsource;
         GridView1.DataBind();
     }
     else
     {
        GridView1.DataSource = null;
        GridView1.DataBind();
     }
}

protected void Button1_Click(object sender, EventArgs e)
{
    if (TextBox1.Text != "")
    {
        Session["Name"] = string.Format("and  compname  like '%{0}%' or productcategory like '%{0}%' or country like '%{0}%'");
    }
    else
    {
         Session["Name"] = null;
    }
}

请指导我该怎么做.

推荐答案

您可以通过两种方式进行操作:

You can do it in two ways:

1. 修改数据表相关列中的文本. (在每列中查找文本，并在该文本周围添加一个带有css类的跨度.)这是一个示例:

1. Modify the text in the relevant columns of you data table. (Find the text in each column and add an span with css class surrounding that text.) Here is a sample:

foreach(DataRow dr in dt.Rows) { foreach(DataColumn dc in dt.Columns) { string s = Convert.ToString(dr[dc.ColumnName]); s = s.Replace("Your Search Text","<span style='color:RED'>Your Search Text</span>"); dr[dc.ColumnName] = s; } }

foreach(DataRow dr in dt.Rows) { foreach(DataColumn dc in dt.Columns) { string s = Convert.ToString(dr[dc.ColumnName]); s = s.Replace("Your Search Text","<span style='color:RED'>Your Search Text</span>"); dr[dc.ColumnName] = s; } }

您可以使用javascript进行相同操作，并让浏览器完成所有艰苦的工作. (有关示例，请参见此链接.)

You can use javascript for the same and let the browser do all the hardwork. (Refer this link for a sample.)

希望这会有所帮助.

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