protected void Page_Load(object sender, EventArgs e)
{
if (!(Page.IsPostBack))
{
System.Data.DataTable dt = new System.Data.DataTable("dt_1");
dt.Columns.Add("A");
dt.Columns.Add("B");
dt.Columns.Add("C");
dt.Rows.Add(new string[] { "1", "2", "3" });
dt.Rows.Add(new string[] { "4", "5", "6" });
dt.Rows.Add(new string[] { "str7", "str8", "str9" });
dt.Rows.Add(new string[] { "str10", "str11", "str12" });
dt.Rows.Add(new string[] { "str13", "str14", "str15" });
MyDataGrid.DataSource = dt;
MyDataGrid.DataBind();
Session["dt"] = dt; }
}
protected void Rec_ChangePage(Object sender, DataGridPageChangedEventArgs e)
{
MyDataGrid.CurrentPageIndex = e.NewPageIndex;
MyDataGrid.DataSource = Session["dt"];
MyDataGrid.DataBind();
}
{
if (!(Page.IsPostBack))
{
System.Data.DataTable dt = new System.Data.DataTable("dt_1");
dt.Columns.Add("A");
dt.Columns.Add("B");
dt.Columns.Add("C");
dt.Rows.Add(new string[] { "1", "2", "3" });
dt.Rows.Add(new string[] { "4", "5", "6" });
dt.Rows.Add(new string[] { "str7", "str8", "str9" });
dt.Rows.Add(new string[] { "str10", "str11", "str12" });
dt.Rows.Add(new string[] { "str13", "str14", "str15" });
MyDataGrid.DataSource = dt;
MyDataGrid.DataBind();
Session["dt"] = dt; }
}
protected void Rec_ChangePage(Object sender, DataGridPageChangedEventArgs e)
{
MyDataGrid.CurrentPageIndex = e.NewPageIndex;
MyDataGrid.DataSource = Session["dt"];
MyDataGrid.DataBind();
}
{
((Label)GridView1.Rows[i].FindControl("Label1")).Text=Convert.ToString( Convert.ToDecimal(GridView1.Rows[i].Cells[2].Text)+ Convert.ToDecimal(GridView1.Rows[i].Cells[3].Text));
}如果以后两列的数据也在Label中,与前一列一样取出数据
<asp:Label ID="labelsum" runat="server" Text='<%# eq( Eval("a"),Eval("b")) %>'></asp:Label>
后
public string sum(object a,object b)
{
int inta = Convert.ToInt32(a);
int intb = Convert.ToInt32(b);
return Convert.ToString(inta + intb);
}
<asp:Label ID="labelsum" runat="server" Text='<%# sum( Eval("a"),Eval("b")) %>'></asp:Label>
后
public string sum(object a,object b)
{
int inta = Convert.ToInt32(a);
int intb = Convert.ToInt32(b);
return Convert.ToString(inta + intb);
}错了点
// bulid table
DataTable table = new DataTable();
table.TableName = "td";
table.Columns.Add("1");
table.Columns.Add("2");
table.Columns.Add("3");
table.Columns.Add("4"); Random ra = new Random();
for (int i = 0; i <= 5; i++)
{
DataRow row = table.NewRow(); row["1"] = ra.Next(0, 100).ToString();
row["2"] = ra.Next(100, 1000).ToString();
row["3"] = ra.Next(1000, 10000).ToString();
row["4"] = Convert.ToString(Convert.ToInt16(row["1"]) + Convert.ToInt16(row["2"])) // 你需要的列相加效果;
table.Rows.Add(row);
} // data bindings
this.dataGridView1.DataSource = table;
this.dataGridView1.Columns[0].DataPropertyName = "1";
this.dataGridView1.Columns[1].DataPropertyName = "2";
{
if (ddl_difference.SelectedValue == "全部")
{
e.Item[6] = changeName(e.Item[9].ToString(), e.Item[10].ToString(), e.Item[11].ToString(), e.Item[12].ToString());
}
if (e.Item[8].ToString() != "")
{
e.Item[14] = EnumHandle.GetDisplayName(typeof(ProcessFlagEnum), Convert.ToInt32(e.Item[8].ToString()));
}
} private string changeName(string sysCodeAmount, string sysBalanceAmount, string inputCodeAmount, string inputBalanceAmount)
{
//接受发件人名称查询
string retval = "";
int a = Convert.ToInt32(sysCodeAmount);
int b = Convert.ToInt32(sysBalanceAmount);
int c = Convert.ToInt32(inputCodeAmount);
int d = Convert.ToInt32(inputBalanceAmount); if((a+b)-(c+d) < 0)
{
retval="有差异";
}
else
{
retval="无差异";
}
return retval;
}看看 可能有启发