(一)普通列
復(fù)制代碼 代碼如下:
/// summary>
/// Gridview列的合并(普通列,不包含模板列)
/// 注意:1.GridView在綁定的時(shí)候進(jìn)行分組和排序,才能讓相同的行放在一起
/// 2.方法應(yīng)用的時(shí)機(jī),應(yīng)該在Gridview的DataBound事件中使用
/// /summary>
/// param name="gv">需要合并的GridView對(duì)象/param>
/// param name="columnIndex">所要合并列的索引/param>
public static void UnitCell(GridView gv, int columnIndex)
{
int i = 0; //當(dāng)前行數(shù)
string lastType = string.Empty; //當(dāng)前判斷是否合并行對(duì)應(yīng)列的值
int lastCell = 0; //判斷最后一個(gè)相同值的行的索引
if (gv.Rows.Count > 0)
{
lastType = gv.Rows[0].Cells[columnIndex].Text.ToString();
gv.Rows[0].Cells[columnIndex].RowSpan = 1;
lastCell = 0;
}
for (i = 1; i gv.Rows.Count; i++)
{
if (gv.Rows[i].Cells[columnIndex].Text == lastType)
{
gv.Rows[i].Cells[columnIndex].Visible = false;
gv.Rows[lastCell].Cells[columnIndex].RowSpan++;
}
else
{
lastType = gv.Rows[i].Cells[columnIndex].Text.ToString();
lastCell = i;
gv.Rows[i].Cells[columnIndex].RowSpan = 1;
}
}
}
/// summary>
/// DataGrid列的合并(普通列,不包含模板列)
/// 注意:1.DataGrid在綁定的時(shí)候進(jìn)行分組和排序,才能讓相同的行放在一起
/// 2.方法應(yīng)用的時(shí)機(jī),應(yīng)該在DataGrid的DataBound事件中使用
/// /summary>
/// param name="dg">需要合并的DataGrid對(duì)象/param>
/// param name="columnIndex">所要合并列的索引/param>
public static void UnitCell_T(DataGrid dg, int columnIndex)
{
int i = 0; //當(dāng)前行數(shù)
string lastType = string.Empty; //當(dāng)前判斷是否合并行對(duì)應(yīng)列的值
int lastCell = 0; //判斷最后一個(gè)相同值的行的索引
if (dg.Items.Count> 0)
{
lastType = dg.Items[0].Cells[columnIndex].Text.ToString();
dg.Items[0].Cells[columnIndex].RowSpan = 1;
lastCell = 0;
}
for (i = 1; i dg.Items.Count; i++)
{
if (dg.Items[i].Cells[columnIndex].Text == lastType)
{
dg.Items[i].Cells[columnIndex].Visible = false;
dg.Items[lastCell].Cells[columnIndex].RowSpan++;
}
else
{
lastType = dg.Items[i].Cells[columnIndex].Text.ToString();
lastCell = i;
dg.Items[i].Cells[columnIndex].RowSpan = 1;
}
}
}
(二)模板列
復(fù)制代碼 代碼如下:
/// summary>
/// Gridview列的合并(模板列)
/// /summary>
/// param name="gv">需要合并的GridView對(duì)象/param>
/// param name="columnIndex">所要合并列的索引/param>
/// param name="lblName">模板列對(duì)象的ID/param>
public static void UnitCell(GridView gv, int columnIndex, string lblName)
{
int i = 0; //當(dāng)前行數(shù)
string lastType = string.Empty; //當(dāng)前判斷是否合并行對(duì)應(yīng)列的值
int lastCell = 0; //判斷最后一個(gè)相同值的行的索引
if (gv.Rows.Count > 0)
{
lastType = (gv.Rows[0].Cells[columnIndex].FindControl(lblName) as Label).Text;
gv.Rows[0].Cells[columnIndex].RowSpan = 1;
lastCell = 0;
}
for (i = 1; i gv.Rows.Count; i++)
{
if ((gv.Rows[i].Cells[columnIndex].FindControl(lblName) as Label).Text == lastType)
{
gv.Rows[i].Cells[columnIndex].Visible = false;
gv.Rows[lastCell].Cells[columnIndex].RowSpan++;
}
else
{
lastType = (gv.Rows[i].Cells[columnIndex].FindControl(lblName) as Label).Text.ToString();
lastCell = i;
gv.Rows[i].Cells[columnIndex].RowSpan = 1;
}
}
}
(三)在DataBound事件中調(diào)用即可。
在GridView或DataGrid中顯示固定寬度的列
默認(rèn)情況下,Gridview和Datagrid控件依據(jù)它們的內(nèi)容自動(dòng)調(diào)整列大小。要為列指定固定寬度,設(shè)置每個(gè)Tablecell對(duì)象的Width屬性并設(shè)置Wrap屬性為False。下面的例子顯示了如何通過(guò)使用DataGrid控件去做。
復(fù)制代碼 代碼如下:
rotected void DataGrid1_ItemCreated(object sender, DataGridItemEventArgs e)
{
ListItemType lit = e.Item.ItemType;
if (lit == ListItemType.Header)
{
for (int i = 0; i e.Item.Cells.Count; i++)
{
e.Item.Cells[i].Width = Unit.Pixel(50);
e.Item.Cells[i].Wrap = false;
}
}
}
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