How to add two dimentional array to datagridview...?

Question

How you will add double dimentional array to a datagridview ?

Rajanikant Hawaldar · Answer

Hello Arijeet Ghosh, Binding DataGridView using Two dimension Array string [][] Array = new string [100][]; for ( int i = 0; i Array[i] = new string [2] { "ROLI:" +i, "DEVESH:" +i }; var data = (from arr in Array select new { Column_1 = arr[0], Column_2 = arr[1] }); dataGridView1.DataSource = data.ToList();

Laxmidhar Sahoo · Answer

while (r { c = 0; while (c { // value is already loaded in the arrray Fields...... datagridview1.rows[r].cells[c].value =Fields[r,c].ToString(); c++ ; } r++; } Assign the c value to 0 in inner loop Thanks and regards

Arijeet Ghosh · Answer

There is a problem....you cannot add rows programmatically.... There are two files.....a) containing the data structure i.e. the column names and b) the data.... The datagridview is bound to the first file i.e. datastructure file and the second file is free... I want to use this second filewith the datagridview as I have used first file. Both the files are to be attached to one datagridview....one for the structure and the second for the data... I am submitting the code..... FileStream fs1 = new FileStream(@ "/_31.07.2020/Database/DataFile/DB1245/" + strDB[idb] + "/" + strTbl[tbl] + "/Data" + "/" + strTbl[tbl] + "_" + dsa + ".dfs" , FileMode.Open, FileAccess.Read); StreamReader sr1 = new StreamReader(fs1); DataTable dt = new DataTable(); while (!sr1.EndOfStream) { dgv.Refresh(); string strColumns = sr1.ReadLine(); DataColumn dc = new DataColumn(); dc.ColumnName = strColumns; dt.Columns.Add(dc); } //MessageBox.Show("fields " + Fields[row - 1, d].ToString()); DataRow dr = dt.NewRow(); dgv.DataSource = dt; sr1.Close(); fs1.Close(); FileStream fs2 = new FileStream(@ "/_31.07.2020/Database/DataFile/DB1245/" + strDB[idb] + "/" + strTbl[tbl] + "/Data" + "/" + dsa + ".dfv" , FileMode.Open, FileAccess.Read); StreamReader sr2 = new StreamReader(fs2); string strLen = "" ; DataTable dt2 = new DataTable(); int r = 0; int row = 0; int col = 1; int d = 0; int c = 0; List string > t = new List string >(); b = 0; int gd = 0; r = 0; string [,] Fields; int x = 0; int q = 0; int ss = 0; while (!sr2.EndOfStream) { var vr = sr2.ReadLine(); row++; strLen = vr; MessageBox.Show(strLen); char [] ch2 = strLen.ToCharArray(); char ch = '─' ; r = 0; while (r { t.Clear(); // MessageBox.Show("RowNo " + r.ToString()); while (d { // MessageBox.Show("col " + col.ToString()); Fields = new string [r+1, col]; while (ch2[d] != ch) { Fields[r, col-1] += ch2[d].ToString(); d++; } //dgv.DataSource = new ArrayDataView(Fields); q = 0; t.Add(Fields[r, col - 1]); //dgv.DataSource = null; while (ss { dgv.Rows.Add(); while (c { dgv.Rows[ss].Cells[c].Value = Fields[ss, c].ToString(); c++; } c = 0; q = 0; ss++; } if (ch2[d] == ch) { col++; d++;x++; } }q = 0; //MessageBox.Show("cll :" + col.ToString());MessageBox.Show("r " + r.ToString()); r++;d= 0;c = 0; // MessageBox.Show("r " + r.ToString()); // MessageBox.Show("count " + t.Count.ToString()); col = 1; } r++; //MessageBox.Show("r " + r.ToString()); } sr2.Close(); fs2.Close();

Rajanikant Hawaldar · Answer

bind that array to databale then directly assign that datatable object to grid datasource. if possible post your code with data.

Arijeet Ghosh · Answer

The structure of the table is in another file and the data is in another....soo can't use datasource property of the datagridview here.....

Rajanikant Hawaldar · Answer

Are you added required number of rows or grid is already bindind ?. Modified your code little bit check it. eloborate more what your going to do, what you have done so far. datagridview1.Rows.Clear(); while (r { while (c { datagridview1.Rows.Add() // value is already loaded in the arrray Fields...... datagridview1.rows[r].cells[c].Value = Convert.ToString(Fields[r,c]); c++ ; } r++; }

Arijeet Ghosh · Answer

Couldn't understand the code..... My code, I am doing it this way ..... while(r { while(c { // value is already loaded in the arrray Fields...... datagridview1.rows[r].cells[c].value =Fields[r,c].ToString(); c++ ; } r++; } But the expected result is not comming....Please solve the issue .....

Harsh Shah · Answer

Hii Arijeet Ghosh, Try this one... // 1. Create two dimensional array const int dim = 1000; double [,] array = new double [dim,dim]; Random ran = new Random(); for ( int r = 0; r { for ( int c = 0; c { array[r,c] = (ran.Next(dim)); // fill it with random numbers. } } // 2. Create ArrayDataView class in which // constructor you pass the array // and assign it to DataSource property of DataGrid. dataGrid1.DataSource = new ArrayDataView(array); When you change data in array and want to see update in DataGrid you need to call Reset method of ArrayDataView class. You can use all kind of base types like double, int32, string and so on.

How to add two dimentional array to datagridview...?

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Answers (8)