合并DataGrid相同单元格

代码如下：

    CombinColumns#region CombinColumns
    private void CombinColumns(DataGrid dataGrid)
    {
        int rowsCount = dataGrid.Items.Count;
        for (int i = rowsCount - 1; i > 0; i--)
        {
            int colCount = dataGrid.Items[0].Cells.Count;

            for (int j = colCount - 1; j >= 0; j--)
            {
                int span = dataGrid.Items[i].Cells[j].RowSpan;
                if (String.Equals(dataGrid.Items[i - 1].Cells[j].Text,dataGrid.Items[i].Cells[j].Text))
                {
                   span = (span == 0 ? 1 : span);
                    span += 1;
                    dataGrid.Items[i - 1].Cells[j].RowSpan = span;
                    dataGrid.Items[i].Cells[j].Visible = false;
                   
                }
            }
        }
    }
    #endregion

次代码有以下缺点：1.单元格内容不能为模板列；

下面是转借别人的：

        /**//// <summary> 
        /// used to merge cells 
        /// </summary> 
        /// <param name="dg">datagrid will be merged</param> 
        /// <param name="GroupColumn">merged column</param> 
        /// <param name="compareColumn">basis column</param> 
        private void spanRow(DataGrid dg,int GroupColumn,int compareColumn) 
        { 
            int i = 0; 
            int j = 0; 
            int rowSpan; 
            string strTemp = ""; 
  
            for(i=0;i<dg.Items.Count;i++) 
            { 
                rowSpan = 1; 
                strTemp = dg.Items[i].Cells[compareColumn].Text; 
                for (j=i+1;j<dg.Items.Count;j++) 
                { 
                    if (string.Compare(strTemp,dg.Items[j].Cells[compareColumn].Text) == 0) 
                    { 
                        rowSpan += 1; 
                        dg.Items[i].Cells[GroupColumn].RowSpan = rowSpan; 
                        dg.Items[j].Cells[GroupColumn].Visible = false; 
                    } 
                    else 
                    { 
                        break; 
                    } 
                } 
                i = j -1; 
            } 
        }