gridview手动分页
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protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridViewDataBind();
}
}
public void GridViewDataBind()
{
Button1.Enabled = true;
Button2.Enabled = true;
SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ToString());
try
{
conn.Open();
SqlDataAdapter sa = new SqlDataAdapter("select * from customers where 1=1", conn);
DataSet ds = new DataSet();
sa.Fill(ds, "customers");
if (ds.Tables[0].Rows.Count == 0)
{
AddDummyData(ds);
}
GridView1.DataSource = ds.Tables["customers"];
GridView1.AllowPaging = true;
GridView1.PageSize = 5;
GridView1.DataBind();
conn.Close();
if (GridView1.PageIndex == 0)
{
Button1.Enabled = false;
}
if (GridView1.PageIndex == GridView1.PageCount - 1)
{
Button2.Enabled = false;
}
}
catch
{
}
finally
{
conn.Close();
}
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridViewDataBind();
}
protected void Button1_Click(object sender, EventArgs e)
{
GridView1.PageIndex = GridView1.PageIndex - 1;
GridViewDataBind();
}
protected void Button2_Click(object sender, EventArgs e)
{
GridView1.PageIndex = GridView1.PageIndex + 1;
GridViewDataBind();
}
protected void Button3_Click(object sender, EventArgs e)
{
GridView1.PageIndex = GridView1.PageCount - 1;
GridViewDataBind();
}
protected void Button4_Click(object sender, EventArgs e)
{
GridView1.PageIndex = 0;
GridViewDataBind();
}
//没有任何数据显示标头
private void AddDummyData(DataSet ds)
{
// Add a dummy row
DataTable dt = ds.Tables[0];
DataRow newRow = dt.NewRow();
dt.Rows.Add(newRow);
}
//隐藏分页
//gridview有一个属性【PageSettings】的子属性【Visible】设置成【False】
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