源码：
1、
代码
代码
public
static
void
GroupRow(GridView gridView)
{
for
(
int
rowIndex
=
gridView.Rows.Count
-
2
; rowIndex
>=
0
; rowIndex
--
)
{
GridViewRow row
=
gridView.Rows[rowIndex];
GridViewRow previousRow
=
gridView.Rows[rowIndex
+
1
];
for
(
int
i
=
0
; i
<
row.Cells.Count; i
++
)
{
if
(row.Cells[i].Text
==
previousRow.Cells[i].Text)
{
row.Cells[i].RowSpan
=
previousRow.Cells[i].RowSpan
<
2
?
2
:
previousRow.Cells[i].RowSpan
+
1
;
previousRow.Cells[i].Visible
=
false
;
}
}
}
}
2、
代码
代码
//
cellNum 表示需要合并的列，索引从0开始
public
static
void
GroupRows(GridView GridView1,
int
cellNum)
{
int
i
=
0
, rowSpanNum
=
1
;
while
(i
<
GridView1.Rows.Count
-
1
)
{
GridViewRow gvr
=
GridView1.Rows[i];
for
(
++
i; i
<
GridView1.Rows.Count; i
++
)
{
GridViewRow gvrNext
=
GridView1.Rows[i];
if
(gvr.Cells[cellNum].Text
==
gvrNext.Cells[cellNum].Text)
{
gvrNext.Cells[cellNum].Visible
=
false
;
rowSpanNum
++
;
}
else
{
gvr.Cells[cellNum].RowSpan
=
rowSpanNum;
rowSpanNum
=
1
;
break
;
}
if
(i
==
GridView1.Rows.Count
-
1
)
{
gvr.Cells[cellNum].RowSpan
=
rowSpanNum;
}
}
}
}
3、
两张表合并成一张
两张表合并成一张
private
DataTable HBTable(DataTable dt1, DataTable dt2)
{
DataTable newDataTable
=
dt1.Clone();
object
[] obj
=
new
object
[newDataTable.Columns.Count];
for
(
int
i
=
0
; i
<
dt1.Rows.Count; i
++
)
{
dt1.Rows[i].ItemArray.CopyTo(obj,
0
);
newDataTable.Rows.Add(obj);
}
for
(
int
i
=
0
; i
<
dt2.Rows.Count; i
++
)
{
dt2.Rows[i].ItemArray.CopyTo(obj,
0
);
newDataTable.Rows.Add(obj);
}
return
newDataTable;
}
4、
代码
代码
protected
void
Unite(GridView gv)
{
int
i;
string
LastType1;
int
LastCell;
if
(gv.Rows.Count
>
0
)
{
for
(
int
j
=
0
; j
<
10
; j
++
)
{
LastType1
=
gv.Rows[
0
].Cells[j].Text;
gv.Rows[
0
].Cells[j].RowSpan
=
1
;
LastCell
=
0
;
if
(j
!=
3
&&
j
!=
4
)
{
for
(i
=
1
; i
<
gv.Rows.Count; i
++
)
{
if
(gv.Rows[i].Cells[j].Text
==
LastType1)
{
gv.Rows[i].Cells[j].Visible
=
false
;
gv.Rows[LastCell].Cells[j].RowSpan
++
;
}
else
{
LastType1
=
gv.Rows[i].Cells[j].Text;
LastCell
=
i;
gv.Rows[i].Cells[j].RowSpan
=
1
;
}
}
}
}
}
}
5、
将两张表拼接成一张表
将两张表拼接成一张表
public
DataSet MergeTable(DataTable tab1, DataTable tab2)
{
DataTable table
=
new
DataTable();
if
(tab1.Rows.Count
!=
0
&&
tab2.Rows.Count
!=
0
)
{
DataColumn[] columns
=
new
DataColumn[tab1.Columns.Count
+
tab2.Columns.Count];
tab1.Columns.CopyTo(columns,
0
);
tab2.Columns.CopyTo(columns, tab1.Columns.Count);
foreach
(DataColumn column
in
columns)
{
table.Columns.Add(column.ColumnName);
}
int
count
=
tab1.Rows.Count
>
tab2.Rows.Count
?
tab1.Rows.Count : tab2.Rows.Count;
for
(
int
i
=
0
; i
<
count; i
++
)
{
if
(tab1.Rows.Count
<=
i)
{
break
;
}
DataRow row
=
table.NewRow();
for
(
int
m
=
0
; m
<
tab1.Columns.Count; m
++
)
{
DataRow item
=
tab1.Rows[i];
row[tab1.Columns[m].ToString()]
=
item[tab1.Columns[m].ToString()];
}
for
(
int
n
=
0
; n
<
tab2.Columns.Count; n
++
)
{
if
(tab2.Rows.Count
<=
i)
{
break
;
}
DataRow item
=
tab2.Rows[i];
row[tab2.Columns[n].ToString()]
=
item[tab2.Columns[n].ToString()];
}
table.Rows.Add(row);
}
}
else
{
table
=
tab1.Rows.Count
==
0
?
tab2.Copy() : tab1.Copy();
}
DataSet ds
=
new
DataSet();
ds.Tables.Add(table);
return
ds;
}