gridview分页

protected void lnkbtnFrist_Click(object sender, EventArgs e)

    {

        //首页

        this.GridView_username.PageIndex = ;

        this.ReadData();

    }

    protected void lnkbtnPre_Click(object sender, EventArgs e)

    {

        //上一页

        if (this.GridView_username.PageIndex > )

        {

            this.GridView_username.PageIndex = this.GridView_username.PageIndex - ;

            this.ReadData();

        }

    }

    protected void lnkbtnNext_Click(object sender, EventArgs e)

    {

        //下一页

        if (this.GridView_username.PageIndex < this.GridView_username.PageCount)

        {

            this.GridView_username.PageIndex = this.GridView_username.PageIndex + ;

            this.ReadData();

        }

    }

    protected void lnkbtnLast_Click(object sender, EventArgs e)

    {

        //最后一页

        this.GridView_username.PageIndex = this.GridView_username.PageCount;

        this.ReadData();

    }

    //选择所需要的页数

    protected void ddlCurrentPage_SelectedIndexChanged(object sender, EventArgs e)

    {

        this.GridView_username.PageIndex = this.ddlCurrentPage.SelectedIndex;

        this.ReadData();

    }