Merge cells GridView

    #region 合并单元格 合并某一行的所有列
    public static void GroupRow(GridView gridView)
    {
        for (int rowIndex = gridView.Rows.Count - 2; rowIndex >= 0; rowIndex--)
        {
            GridViewRow row = gridView.Rows[rowIndex];
            GridViewRow previousRow = gridView.Rows[rowIndex + 1];
            for (int i = 0; i < row.Cells.Count; i++)
            {
                if (row.Cells[i].Text == previousRow.Cells[i].Text)
                {
                    row.Cells[i].RowSpan = previousRow.Cells[i].RowSpan < 2 ? 2 :
                                           previousRow.Cells[i].RowSpan + 1;
                    previousRow.Cells[i].Visible = false;
                } 
            } 
        } 
                tc.Visible = to false;
    } 
    /// <Summary>　
    row /// combined GridView same information in a row (cells) 
    /// </ Summary>　
    /// <param name = "GridView1, and"> GridView Object </ param>　
    /// <param name = "cellNum"> be merged row </ param> 
    public static void GroupRow (the GridView GridView, int rows) 
    { 
        the TableCell oldTc = gridView.Rows [rows] .Cells [0]; 
        for (int I =. 1; I <gridView.Rows [rows] .Cells.Count; I ++) 
        { 
            the TableCell gridView.Rows TC = [rows] .Cells [I]; // Cells [0] is the column to you 
            if (oldTc.Text == tc.Text) 
            { 
                IF (oldTc.ColumnSpan == 0) 
                { 
                    oldTc.ColumnSpan = 1; 
                } 
                oldTc.ColumnSpan ++; 
                oldTc.VerticalAlign = VerticalAlign.Middle; 
            } 
            the else 
            { 
                oldTc = TC; 
            } 
        } 
    } 
    #endregion 
    columns #region combined merged cell row 
    /// <summary > 
    /// combined merged cell columns in a row 
    /// </ Summary> 
    /// <param name = "GridView1, and"> the GridView ID </ param> 
    /// <param name = "rows"> line < / param> 
    /// <param name = "SCOL"> the starting column </ param> 
    /// <param name = "ECOL"> end column </ param>
    static void GroupRow public (the GridView GridView, int rows, SCOL int, int ECOL) 
    { 
        the TableCell oldTc = gridView.Rows [rows] .Cells [SCOL]; 
        for (int I =. 1; I <ECOL - SCOL; I ++) 
        { 
            the TableCell tc = gridView.Rows [rows] .Cells [ i + sCol]; // Cells [0] is the column to your 
            tc.Visible = to false; 
            IF (oldTc.ColumnSpan == 0) 
            { 
                oldTc.ColumnSpan =. 1; 
            } 
            oldTc.ColumnSpan ++; 
            oldTc.VerticalAlign = VerticalAlign.Middle; 
        } 
    } 
    #endregion 
    #region a combined merged cell column for all rows 
    /// <summary> 
    /// GridView combined information in a column in the same row (cells) 
    /// </ Summary > 
    /// <param name = "GridView1, and"> </ param> 
    /// <param name = "cellNum"> </ param> 
    public static void GroupCol (the GridView GridView, int cols) 
    {
        if (gridView.Rows.Count < 1 || cols > gridView.Rows[0].Cells.Count - 1)
        {
            return;
        }
        TableCell oldTc = gridView.Rows[0].Cells[cols];
        for (int i = 1; i < gridView.Rows.Count; i++)
        {
            TableCell tc = gridView.Rows[i].Cells[cols];
            if (oldTc.Text == tc.Text)
            {
                tc.Visible = false;
                if (oldTc.RowSpan == 0)
                {
                    oldTc.RowSpan = 1;
                } 
                OldTc.RowSpan ++;
                oldTc.VerticalAlign = VerticalAlign.Middle;
            }
            else
            {
                TC = oldTc; 
            } 
        } 
    } 
    #endregion 
    certain row #region combined merged cell in a column 
    /// <summary> 
    certain row /// combined merged cell in a column 
    /// </ Summary> 
    / // <param name = "GridView1, and"> the GridView ID </ param> 
    /// <param name = "cellNum"> column </ param> 
    /// <param name = "sRow"> start OK </ param> 
    / // <param name = "eRow" > end column </ param> 
    public static void GroupCol (the GridView GridView, int cols, sRow int, int ERoW) 
    { 
        IF (gridView.Rows.Count <cols. 1 ||> gridView.Columns .count -. 1) 
        { 
            return;
        }
        OldTc = gridView.Rows the TableCell [sRow] .Cells [cols]; 
        for (int I =. 1; I <ERoW - sRow; I ++) 
        { 
            the TableCell gridView.Rows TC = [I + sRow] .Cells [cols]; 
            TC. = to false the Visible; 
            IF (oldTc.RowSpan == 0) 
            { 
                oldTc.RowSpan =. 1; 
            } 
            oldTc.RowSpan ++; 
            oldTc.VerticalAlign = VerticalAlign.Middle; 
        } 
    } 
    #endregion 
} 


above method is called as a time assignment GridView:

           private void BindPurchaseOrders()
          {
        #region
        DataTable  ABC= s1.select("select * from Table ");
        GridView.DataSource = ABC;
        GridView.DataBind();

        GroupCol (GridView, 0); // call the above method (this method for merging a first row of cells in the same data)

        #endregion

 

       // conditional merged cell
        for (int i = 0; i <ABC.Rows.Count; i ++) // loop over all data
        {
        IF (ABC.Rows [I] [ "A"] the ToString () == the ABC. .Rows [i] [ "B" ]. ToString ()) // if the A field is equal to the merge field B cells
        {

Suppose A // B in the first row in the second column, the combined method is called, a first row and second column of the same column merge data
        GroupRow (GV_LowValue, I, 0,. 1);
        }

        }

        }