GridView学习总结

greatverve 2008-09-19 08:15:16

1.不设置模板,直接绑定数据,对于GridView是可以的.但是无法控制显示,或者更复杂的功能.
2.模板研究
<asp:GridView ID="GVTemplate" runat="server"
AutoGenerateColumns="False" //使用模板一般不自动生成列.
AllowPaging="True" //分页
AllowSorting="True" //排序
AutoGenerateDeleteButton="True" //生成删除按钮
AutoGenerateEditButton="True" //生成编辑按钮
OnPageIndexChanging="GridView1_PageIndexChanging" //页码改变事件.
OnRowCancelingEdit="GridView1_RowCancelingEdit" //取消编辑按钮事件.
OnRowDeleting="GridView1_RowDeleting" //删除事件
OnRowEditing="GridView1_RowEditing" //编辑事件
DataKeyNames="UserID" //设置主键字段,很重要,删除的时候会用到.
PageSize="3"> //每页显示条数
<Columns> //列模板
<asp:BoundField DataField="Id" /> //绑定string/nvarchar类型,一般用BoundField
<asp:CheckBoxField DataField="Checkout" /> //绑定bool/bit

<asp:TemplateField> //模板列,可以绑定复杂的数据,或者更多控件.
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("TTime") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<PagerSettings //设置分页功能
FirstPageText="首页"
LastPageText="尾页"
NextPageText="下一页"
PreviousPageText="上一页"
Mode="NumericFirstLast" //分页模式
PageButtonCount="3" //分页用户界面中要显示的页数.
Position="Top" /> //分页条的位置
</asp:GridView>

...全文

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protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            Bind();

        }

    }

    private void Bind()

    {

        SQLConstructor.BLL.User user = new SQLConstructor.BLL.User();

        this.GVTest.DataSource = user.getAllUser();

        this.GVTest.DataBind();

        GridView1.DataSource = user.getAllUser();

        GridView1.DataBind();

    }

    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)

    {

        this.GridView1.PageIndex = e.NewPageIndex;//页码取得的方法.再次绑定数据时,GridView根据新页码自动筛选数据.

        this.Bind();

    }

    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

    {

        this.GridView1.EditIndex = e.NewEditIndex;//编辑行索引的取得方法,通过事件参数.

        this.Bind();

    }

    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

    {

        this.GridView1.EditIndex = -1;//取消

        this.Bind();

    }

    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

    {

        int UserID = int.Parse(this.GridView1.DataKeys[e.RowIndex].Value.ToString());

        Response.Write(UserID.ToString());

        //执行删除代码

        //pro.deleteproduct(UserID);

        this.Bind();

        Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", "<script>alert('删除成功!')</script>", false);

    }

    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

    {

        try

        {

            string userid = GridView1.DataKeys[e.RowIndex].Value.ToString();//获取主键

            GridViewRow myrow = GridView1.Rows[e.RowIndex];                 //取得GridView的行

            Label lb = (Label)myrow.FindControl("Label1");

            Response.Write(lb.Text);

            //string id = ((TextBox)myrow.Cells[1].Controls[0]).Text;

            /*Cell[0]代表第一列,如果第一列是模板列.则里面的控件可能不至一个.

             * Cell[0].Controls[1]代表第二个控件.

             */

            //string name =((TextBox)myrow.Cells[1].Controls[0]).Text;//获取选中行单元格数据

            //string pwd = ((LiteralControl)myrow.Cells[2].Controls[2]).Text;

            //pwd += ((Label)myrow.Cells[2].Controls[1]).Text;

            //pwd += "这里的pwd的结束";

            //name += "";// myrow.Cells[2].Controls[0].GetType().ToString();

            //Response.Write("id" + name + pwd); 

            ////更新代码

            //foreach (Control c in myrow.Cells[0].Controls)

            //{

            //    Response.Write(c.GetType().ToString()+"<br/>");

            //}



            GridView1.EditIndex = -1;

            this.Bind();

        }

        catch (Exception ex)

        {

            Response.Write(ex.Message);

        }

    }