[转]GridView 常用事件删除,更新,删除,取消等

转自：http://www.cnblogs.com/aito/articles/1276245.html

 

GridView 常用事件--删除,更新,删除,取消等

要设置的基本属性:DataKeyNames

前台代码:

<asp:GridView ID="GridView1" runat="server" CellPadding="4" AutoGenerateColumns="False"  OnRowCommand="GridViewID_RowCommand" DataKeyNames="id,name" OnRowCancelingEdit="GridViewID_RowCancelingEdit" OnRowEditing="GridViewID_RowEditing" OnRowUpdating="GridViewID_RowUpdating" >
<Columns>
     <asp:TemplateField HeaderText="编号">
          <ItemTemplate>
               <asp:Label ID="lbid" runat="server" Text='<%#Eval("id") %>'></asp:Label>
          </ItemTemplate>
     </asp:TemplateField>
     <asp:TemplateField HeaderText="课本版本">
     <EditItemTemplate>
          <asp:TextBox ID="TextBox" runat="server" Text='<%# Bind("name") %>'></asp:TextBox>
     </EditItemTemplate>

     <ItemTemplate>
           <asp:Label ID="Label1" runat="server" Text='<%# Bind("name") %>'></asp:Label>
      </ItemTemplate>
      </asp:TemplateField>
      <asp:CommandField HeaderText="编辑" ShowEditButton="True" >
      </asp:CommandField>
      <asp:ButtonField HeaderText="管理" Text="&lt;div id=&quot;de&quot; onclick=&quot;JavaScript:return confirm('确认要删除本条记录？')&quot;&gt;删除&lt;/div&gt;" CommandName="version_delete" >
     </asp:ButtonField>
     </Columns>
</asp:GridView>

数据绑定:

protected void MyDataBind()
{
    DataTable Myddt=New DataTable;
    version_op v_op = new bookversion_op();
    Myddt = version_op.version_selete();
    this.GridViewID.DataSource = Myddt;
    this.GridViewID.DataBind();
}

 后台代码:

取消操作:

protected void GridViewID_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridViewID.EditIndex = -1;
        this.MyDatabind();
    }

更新操作:

protected void GridViewID_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
       // int _version_id = int.Parse(((TextBox)GridView1.Rows[e.RowIndex].Cells[0].Controls[0]).Text.Trim());//BoundField中便用,但编号也会出现TextBox
        //如果是模版列一定要用FindControl
        int id = int.Parse(((Label)GridViewID.Rows[e.RowIndex].Cells[0].FindControl("lbid")).Text.ToString().Trim());
        string  name = ((TextBox)GridViewID.Rows[e.RowIndex].Cells[1].FindControl("TextBox")).Text.ToString().Trim();
        try
        {
            int result = version_op.version_update(id, name);
            GridViewID.EditIndex = -1;
            this.MyDatabind();
        }
        catch (Exception wwdex)
        {
            Tools.MSBox("数据库操作失败：" + wwdex.ToString());
        }
    }

删除操作:

//用ButtonField要设置CommandName属性

设计器中Text:<div id="de" onclick="JavaScript:return confirm('确认要删除本条记录？')">删除</div>

(Text)代码请看上前台代码

protected void GridViewID_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        if (e.CommandName.Equals("version_delete"))
        {
            int id = Convert.ToInt32(this.GridViewID.Rows[Convert.ToInt32(e.CommandArgument)].Cells[0].Text);
            int result = 0;
            try
            {
                result = version_op.version_delete(id);
            }
            catch (Exception ex)
            {
                Tools.MSBox("数据库操作失败：" + ex.ToString());
            }
            if (result == 1)
            {
                Response.Write("<script language='javascript'>alert('删除成功！')</script>");
                MyDatabind();
            }
            else
            {
                Response.Write("<script language='javascript'>alert('数据库操作失败！result=" + result + "')</script>");
                return;
            }

编辑操作:

protected void GridViewID_RowEditing(object sender, GridViewEditEventArgs e)
    {
        this.GridViewID.EditIndex = e.NewEditIndex;
        this.GridViewID.EditRowStyle.BackColor = Color.AliceBlue;//设置编辑状态下的样式,要引入System.Drawing命名空间
        this.MyDatabind();
    }