asp.net实现批量删除实例
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本文实例讲述了asp.net实现批量删除功能的方法。对于asp.net的学习有一定的参考价值。分享给大家供大家参考之用。具体实现方法入戏：
.aspx文件代码如下：
<asp:GridView runat="server" EmptyDataText="暂时无数据" BorderColor="White" OnRowDeleting="GridView1_RowDeleting">
<Columns>
<asp:TemplateField HeaderText="选择">
<ItemStyle />
<ItemTemplate>
<asp:CheckBox runat="Server" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="id" HeaderText="序号" >
<ItemStyle />
</asp:BoundField>
<asp:TemplateField HeaderText="标题">
<ItemStyle />
<ItemTemplate>
<a href="../shangpu/<%#eval_r("pageurl") %>" target="_blank"><%#eval_r("title") %></a>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="发表时间">
<ItemStyle />
<ItemTemplate>
<%# Convert.ToDateTime(eval_r("addtime")).Date.ToString("yyyy-MM-dd") %>
</ItemTemplate>
</asp:TemplateField>
<asp:HyperLinkField DataNavigateUrlFormatString="shangpu_edit.aspx?id={0}" Text="修改" NavigateUrl="shangpu_edit.aspx?id={0}" DataNavigateUrlFields="id" >
<ItemStyle />
</asp:HyperLinkField>
<asp:CommandField ShowDeleteButton="True" HeaderText="删除" DeleteText="<div>删除</div>" >
<ItemStyle />
</asp:CommandField>
</Columns>
<EmptyDataTemplate>
<font color=red>暂时无数据</font>
</EmptyDataTemplate>
<RowStyle />
</asp:GridView>
.cs 文件代码如下：
protected void btndeleteall_Click(object sender, EventArgs e)
{
string sqltext = "(";
for (int i = 0; i < GridView1.Rows.Count; i++)
{
CheckBox chb = (CheckBox)GridView1.Rows[i].FindControl("id");
if (chb.Checked)
{
sqltext = sqltext + GridView1.DataKeys[i].Value.ToString() + ",";
}
}
sqltext = sqltext.Substring(0, sqltext.Length - 1) + ")";
sqltext = "delete from shangpu where id in" + sqltext;
string sqlcon = ConfigurationManager.AppSettings["ConnectionString"].ToString();
SqlConnection con = new SqlConnection(sqlcon);
con.Open();
SqlCommand cmd = new SqlCommand(sqltext, con);
try
{
int count = Convert.ToInt32(cmd.ExecuteNonQuery());
if (count > 0)
{
viewbind();
MessageBox.Show(this, "删除成功,共删除" + count + "条记录！");
}
}
catch
{
MessageBox.Show(this, "删除失败！");
}
finally
{
con.Close();
con.Dispose();
}
}
感兴趣的朋友可以调试运行一下本文实例，学有余力的朋友还可以对代码作出改进以完善其功能。希望本文实例对大家的asp.net学习有一定的帮助作用。
