winform 分页 分类： WinForm 2014-05-16 15:30 257人阅读 评论(0) 收藏

说明：(1)如果对分页的感兴趣的话，可以看一下我传的存储过程（“SQL 存储过程 分页”）

(2)分页，第一页、上一页，下一页、最后一页只调用点击(click)事件即可;如果想要实用性的好的话，txtNowPage,需 要调用3个事件，点击事件(click)、离开事件(leave)、目标按下事件(keypress)。

效果图：






代码实现如下：

public void DataBind()

{

#region 数据绑定

GetWhere();

object[] page = new object[8];

page[0] = "表或视图";

page[1] = " 字段名称 ";

page[2] = pagesize;//没有多少条记录

page[3] = nowpage;//当前页码

page[4] = strWhere;//查询条件

page[5] = "表的主键";

page[6] = sumpage;//总页数

page[7] = sizecount;//总条数

DataSet dset = new DataSet();

dset = DataAccess.GetDataSet("P_Public_Paging", true, page);

dgvMainTop.DataSource = dset.Tables[0];

sumpage = Convert.ToInt32(dset.Tables[1].Rows[0][0].ToString());

sizecount = Convert.ToInt32(dset.Tables[1].Rows[0][1].ToString());

lblSumCount.Text = "(共" + sizecount + "条记录)";

txtNowPage.Text = nowpage + "/" + sumpage;

PageState(); //分页状态

}

private void PageState()

{

#region 分页按钮状态

if (sumpage <= 1)

{

btnUp.Enabled = false;

btnNext.Enabled = false;

btnFirst.Enabled = false;

btnEnd.Enabled = false;

}

else

{

if (nowpage == 1)

{

btnFirst.Enabled = false;

btnEnd.Enabled = true;

btnUp.Enabled = false;

btnNext.Enabled = true;

}

else if (nowpage == sumpage)

{

btnUp.Enabled = true;

btnNext.Enabled = false;

btnFirst.Enabled = true;

btnEnd.Enabled = false;

}

else

{

btnUp.Enabled = true;

btnNext.Enabled = true;

btnFirst.Enabled = true;

btnEnd.Enabled = true;

}

}

#endregion

}

private void btnFirst_Click(object sender, EventArgs e)

{

#region 第一页按钮事件

DataBind();

#endregion

}

private void btnUp_Click(object sender, EventArgs e)

{

#region 上一页按钮事件

nowpage--;

DataBind();

#endregion

}

private void btnNext_Click(object sender, EventArgs e)

{

#region 下一页按钮事件

nowpage++;

DataBind();

#endregion

}

private void btnEnd_Click(object sender, EventArgs e)

{

#region 最后一页按钮事件

nowpage = sumpage;

DataBind();

#endregion

}

private void txtNowPage_KeyPress(object sender, KeyPressEventArgs e)

{

#region 页码输入限制，允许输入0-9数字 回退键 回车键

e.Handled = true;

if (e.KeyChar >= '0' && e.KeyChar <= '9' || e.KeyChar == 8)

{

e.Handled = false;

}

if (e.KeyChar == 13)

{

btnFind.Focus();

}

#endregion

}

private void txtNowPage_Leave(object sender, EventArgs e)

{

#region 设置当前页 最大为总页数 最小1

if (txtNowPage.Text == string.Empty)

{

nowpage = 1;

txtNowPage.Text = nowpage + "/" + sumpage;

}

string strpage = txtNowPage.Text.Trim();

string[] array = strpage.Split('/');

txtNowPage.Text = array[0];

int page = int.Parse(array[0]);

if (page <= 1)

{

nowpage = 1;

txtNowPage.Text = nowpage + "/" + sumpage;

}

if (page > sumpage)

{

nowpage = sumpage;

txtNowPage.Text = nowpage + "/" + sumpage;

}

if (page > 1 && page <= sumpage)

{

nowpage = page;

}

DataBind();

#endregion

}

private void txtNowPage_Click(object sender, EventArgs e)

{

#region 单击页码文本框

string strpage = txtNowPage.Text.Trim();

string[] array = strpage.Split('/');

txtNowPage.Text = array[0];

txtNowPage.Focus();

txtNowPage.SelectAll();

#endregion

}