protected void GVList_RowDataBound(object sender, GridViewRowEventArgs e)
{
//隐藏不必要的列
if ((e.Row.RowType == DataControlRowType.DataRow) || (e.Row.RowType == DataControlRowType.Header) || (e.Row.RowType == DataControlRowType.Footer))
{
e.Row.Cells[0].Visible = false;
e.Row.Cells[3].Visible = false;
}
}
这是迄今为止最简洁的解决方法了。
在RowCreated事件中书写如下代码:
void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow ||
e.Row.RowType == DataControlRowType.Header)
{
e.Row.Cells[0].Visible = false; //如果想使第1列不可见,则将它的可见性设为false
}
//可以根据需要设置更多的列
}
因为在RowCreated事件(隐藏)在绑定时候发生,所以这样就即能将数据绑定到列上,又隐藏了该列.所以可以访问到隐藏列的值。
隐藏显示列
============================
//
全选
protected
void
CB_selALL_CheckedChanged(
object
sender, EventArgs e)
{
BLL.InitialGridViewClass objInitialGridViewClass = new BLL.InitialGridViewClass();
objInitialGridViewClass.AllSel(CB_selALL, gv, "CheckBox1");
if (CB_selALL.Checked)
{
gv.Columns[6].Visible = true;
gv.Columns[7].Visible = true;
gv.Columns[8].Visible = true;
}
else
{
gv.Columns[6].Visible = false;
gv.Columns[7].Visible = false;
gv.Columns[8].Visible = false;
}
}
//
--------------------
public
void
AllSel(CheckBox objCBAll, GridView GV,
string
strCB)
{
for (int i = 0; i < GV.Rows.Count; i++)
{
CheckBox objCB = (CheckBox)GV.Rows[i].FindControl(strCB);
if (objCBAll.Checked)
{
objCB.Checked = true;
}
else
{
objCB.Checked = false;
}
}
}
//
=========将GridView 中的CheckBox打沟 后显示列,去掉沟则隐藏列=========
//
打沟 后的变化
protected
void
CheckBox_Changed(
object
sender, EventArgs e)
{
int n = 0;
for (int i = 0; i < gv.Rows.Count; i++)
{
CheckBox objCB = (CheckBox)gv.Rows[i].FindControl("CheckBox1");
if (objCB.Checked)
n++;
}
if (n > 0)
{
gv.Columns[6].Visible = true;
gv.Columns[7].Visible = true;
gv.Columns[8].Visible = true;
}
if (n == 0)
{
gv.Columns[6].Visible = false;
gv.Columns[7].Visible = false;
gv.Columns[8].Visible = false;
}
}