我在 Visual Studio 2015 中使用 Infragistics UltraGrid 设计器时遇到了麻烦,因为当我尝试在不绑定(bind)数据的情况下添加和定义列时,它会不断抛出错误。我什至明确选择不将数据绑定(bind)到它,但无论如何它都会抛出错误。一段时间后,我放弃了,现在我尝试在不依赖设计器的情况下在 C# 中手动添加列。
我试图找到不依赖设计器的在UltraGrid中添加列的方法,但没有找到有用的数据。我试过查看 Infragistics 2015 v2 Documentation对于“UltraGrid”和“UltraGrid Column”,他们没有任何关于在不依赖 UltraGrid 设计器的情况下创建列的内容。
有人知道如何在不依赖 UltraGrid 设计器的情况下向 UltraGrid 添加新列吗?
最佳答案
我想我已经自己找到了这个问题的答案,并且我认为如果我在这里发布我的发现,一些人会受益。
<强>1。首先...通过添加和定义列来制作标题
<强>2。接下来,添加数据
<强>3。最后,绑定(bind)数据。
//Be sure to include this heading:
using Infragistics.Win.UltraWinGrid;
public class ClassName{
// 1. Make the Headers by adding and defining columns.
private static DataTable MakeTableHeaders()
{
DataTable myDataTable = new DataTable("My Table");
// Declare variables for DataColumn and DataRow objects.
DataColumn column;
// Properties:
// column.DataType = set data type (System.Int32, System.String, etc...)
// column.ColumnName = set column key (it MUST be unique) (String)
// column.Caption = set the string to be visible for column header. (String)
// column.ReadOnly = set whether the column is editable or not. (Boolean)
// column.Unique = set whether or not values in the column must be unique.
// Unique values = each cell must be different each other.
// (Boolean)
//// Program ID
//// Caption "ID"
column = new DataColumn();
column.DataType = System.Type.GetType("System.Int32");
column.ColumnName = "ID";
column.Caption = "ID";
column.ReadOnly = true;
column.Unique = true;
// Adds the column to the programTable.
myDataTable.Columns.Add(column);
//// Program Name
//// Caption "Program"
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "Program";
column.Caption = "Program";
column.ReadOnly = true;
column.Unique = false;
// Adds the column to the programTable.
myDataTable.Columns.Add(column);
// Add the rest of the necessary columns.
// ....
// When completed, return the table.
return myDataTable;
}
// 2. Next, add data.
public static DataSet loadData()
{
DataTable myDataTable = MakeTableHeaders();
// Add a new empty data row to our data model.
DataRow theDataRow = myDataTable.NewRow();
// Add data
theDataRow[0] = 0;
theDataRow[1] = "Program Name";
// Add the DataRow to the table.
myDataTable.Rows.Add(theDataRow);
// Don't forget to accept changes,
// or the data may not be retained.
myDataTable.AcceptChanges();
// Create a new DataSet.
gridDataSet = new DataSet();
// Add the table to DataSet.
gridDataSet.Tables.Add(myDataTable);
// Return the DataSet.
return gridDataSet;
}
// 3. Finally, bind data.
// Do it in the construct of your class
public ClassName()
{
// Use the UltraGrid name you assigned to
// your UltraGrid.
ugMyUltraGrid.DataSource = loadData();
}
ugMyUltraGrid_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.CellEventArgs)
{
// This is used to place columns in specific place.
int headerPosition = 0;
// Set cell editability
// Activation.ActivateOnly = The context in the cell can be selected, but cannot be edited.
// Activation.AllowEdit = Allows the cell to be edited.
// Activation.Disabled = Disables the cell.
// Activation.NoEdit = Only allows the cell to be activated.
col.CellActivation = Activation.ActivateOnly;
// Hide all columns
col.Hidden = true;
// Program ID
column = "ID";
ugColumn = e.Layout.Bands[parent].Columns[column];
e.Layout.Bands[parent].Columns[column].Header.Caption = "ID";
e.Layout.Bands[parent].Columns[column].Header.VisiblePosition = headerPosition++;
e.Layout.Bands[parent].Columns[column].Width = 50;
// To size it to a fixed column width, use this instead:
// e.Layout.Bands[parent].Columns[column].MinWidth = e.Layout.Bands[parent].Columns[column].MaxWidth = 50;
// Program Name
column = "Program";
e.Layout.Bands[parent].Columns[column].Header.Caption = "Project";
e.Layout.Bands[parent].Columns[column].Header.VisiblePosition = headerPosition++;
e.Layout.Bands[parent].Columns[column].Width = 150;
// To size it to a fixed column width, use this instead:
// e.Layout.Bands[parent].Columns[column].MinWidth = e.Layout.Bands[parent].Columns[column].MaxWidth = 150;
}
}
给你。 :-)
如果您遇到问题,请告诉我,我会尽力帮助您。
关于c# - 如何在不使用设计器的情况下向 Infragistics UltraGrid 添加列,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37751994/