我想在DataGrid中插入第一列作为选择列,这是我的代码,为什么显示不出来?
DataGridBoolColumn的MapingName属性是不是一定要,我这里只是作为选择标记,并不需要影射到某一列上,应该怎么做,看了很多文章都不行,高手救我!!!!DataGridTableStyle ts = new DataGridTableStyle();
DataGridTextBoxColumn aColumnTextColumn;
DataGrid1.DataSource = dtGrid;
ts.MappingName = dtGrid.TableName;
int numCols = dtGrid.Columns.Count;
DataGrid1.CaptionText = "生产计划列表"; DataGridColumnStyle dcSelect = new DataGridBoolColumn();
dcSelect.HeaderText = "选择";
dcSelect.MappingName = "";
//dcSelect.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
dcSelect.Width = 50;
//dcSelect.AllowNull = false;
ts.GridColumnStyles.Add(dcSelect);
DataGridBoolColumn的MapingName属性是不是一定要,我这里只是作为选择标记,并不需要影射到某一列上,应该怎么做,看了很多文章都不行,高手救我!!!!DataGridTableStyle ts = new DataGridTableStyle();
DataGridTextBoxColumn aColumnTextColumn;
DataGrid1.DataSource = dtGrid;
ts.MappingName = dtGrid.TableName;
int numCols = dtGrid.Columns.Count;
DataGrid1.CaptionText = "生产计划列表"; DataGridColumnStyle dcSelect = new DataGridBoolColumn();
dcSelect.HeaderText = "选择";
dcSelect.MappingName = "";
//dcSelect.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
dcSelect.Width = 50;
//dcSelect.AllowNull = false;
ts.GridColumnStyles.Add(dcSelect);
DataGridColumnStyle dcSelect = new DataGridBoolColumn();
dcSelect.HeaderText = "选择";
dcSelect.MappingName = "";
//dcSelect.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
dcSelect.Width = 50;
//dcSelect.AllowNull = false;
ts.GridColumnStyles.Add(dcSelect);所有列定义完之后,还有这句:
DataGrid1.TableStyles.Add(ts);所以应该是DataGridBoolColumn没有定义好,应该是怎么回事,谢谢!
private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if ((e.Item.ItemType == ListItemType.Item) ||
(e.Item.ItemType == ListItemType.AlternatingItem) ||
(e.Item.ItemType == ListItemType.SelectedItem) )
{
CheckBox cb ;
//加选择框
cb = new CheckBox();
e.Item.Cells[0].Controls.Add(cb);
}
ItemDataBound
aColumnTextColumn.Width = 100;
DateTimePicker dtp = new DateTimePicker();
dtp.Dock= DockStyle.Fill;
dtp.Cursor= Cursors.Arrow;
dtp.ValueChanged+=new EventHandler(this.dtg_ValueChanged);//日期获取变化
aColumnTextColumn.TextBox.Controls.Add(dtp);
DateTimePicker dtp = new DateTimePicker();
dtp.Dock= DockStyle.Fill;
dtp.Cursor= Cursors.Arrow;
dtp.ValueChanged+=new EventHandler(this.dtg_ValueChanged);//日期获取变化
aColumnTextColumn.TextBox.Controls.Add(dtp);
=============================================================================
这样和那个有一点区别,这个是填充值,那个是这一列根本显示不出来,应该怎么做,请指教:)
http://www.syncfusion.com/FAQ/WindowsForms/FAQ_c44c.aspx#q754q
DataTable dtGrid = db1.ExecuteToDataTable(strSQL) ;
//=======================================
DataGridTableStyle ts = new DataGridTableStyle();
DataGridTextBoxColumn aColumnTextColumn;
DataGrid1.DataSource = dtGrid;
ts.MappingName = dtGrid.TableName;
int numCols = dtGrid.Columns.Count;
DataGrid1.CaptionText = "生产计划列表"; DataGridColumnStyle dcSelect = new DataGridBoolColumn();
dcSelect.HeaderText = "选择";
dcSelect.MappingName = "";//是不是这里的问题
dcSelect.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
dcSelect.Width = 50;
dcSelect.AllowNull = false;
ts.GridColumnStyles.Add(dcSelect); int loopFlag = 0;
while (loopFlag < numCols)
{
aColumnTextColumn = new DataGridTextBoxColumn();
switch (loopFlag)
{
case 0 :
aColumnTextColumn.HeaderText = "编号";
aColumnTextColumn.Width = 50;
break;
case 1 :
aColumnTextColumn.HeaderText = "市场名称";
aColumnTextColumn.Width = 200;
break;
case 2 :
aColumnTextColumn.HeaderText = "档位号码";
aColumnTextColumn.Width = 80;
break;
//其他的省略了
}
aColumnTextColumn.NullText = "";
aColumnTextColumn.ReadOnly = true;
aColumnTextColumn.Alignment=System.Windows.Forms.HorizontalAlignment.Center;
aColumnTextColumn.MappingName = dtGrid.Columns[loopFlag].ColumnName;
ts.GridColumnStyles.Add(aColumnTextColumn);
loopFlag++;
} DataGrid1.TableStyles.Add(ts);
DataTable dtGrid = db1.ExecuteToDataTable(strSQL) ;
DataGridTableStyle ts = new DataGridTableStyle();
DataGridTextBoxColumn aColumnTextColumn;
DataGrid1.DataSource = dtGrid;
ts.MappingName = dtGrid.TableName;
int numCols = dtGrid.Columns.Count;
DataGrid1.CaptionText = "生产计划列表";DataGridColumnStyle dcSelect = new DataGridBoolColumn();
dcSelect.HeaderText = "选择";
dcSelect.MappingName = "";
dcSelect.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
dcSelect.Width = 50;
dcSelect.AllowNull = false;
ts.GridColumnStyles.Add(dcSelect);int loopFlag = 0;
while (loopFlag < numCols)
{
aColumnTextColumn = new DataGridTextBoxColumn();
switch (loopFlag)
{
case 0 :
aColumnTextColumn.HeaderText = "编号";
aColumnTextColumn.Width = 50;
break;
case 1 :
aColumnTextColumn.HeaderText = "市场名称";
aColumnTextColumn.Width = 200;
break;
case 2 :
//其他的省略了
}
aColumnTextColumn.NullText = "";
aColumnTextColumn.ReadOnly = true;
aColumnTextColumn.Alignment=System.Windows.Forms.HorizontalAlignment.Center;
aColumnTextColumn.MappingName = dtGrid.Columns[loopFlag].ColumnName;
ts.GridColumnStyles.Add(aColumnTextColumn);
loopFlag++;
}DataGrid1.TableStyles.Add(ts);
DataTable dtGrid = db1.ExecuteToDataTable(strSQL) ; DataColumn checkCol = new DataColumn();
checkCol.ColumnName = "CheckState";
checkCol.DefaultValue = "0";
checkCol.AllowDBNull = false;
dtGrid.Columns.Add(checkCol);
//=======================================
DataGridTableStyle ts = new DataGridTableStyle();
DataGridTextBoxColumn aColumnTextColumn;
DataGrid1.DataSource = dtGrid;
ts.MappingName = dtGrid.TableName;
int numCols = dtGrid.Columns.Count;
DataGrid1.CaptionText = "生产计划列表"; DataGridColumnStyle dcSelect = new DataGridBoolColumn();
dcSelect.HeaderText = "选择";
dcSelect.MappingName = "CheckState";
dcSelect.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
dcSelect.Width = 50;
((DataGridBoolColumn)dcSelect).AllowNull = false;
dcSelect.
ts.GridColumnStyles.Add(dcSelect);
===============================================================================
我这样做了之后,出来是出来了,为什么都是默认选中的灰色,而且点一下就会自动生成一个空的行,点一下多一个