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How to Add ItemArray to DataRow at a specific Location in DataTable


How to Add ItemArray to DataRow at a specific Location in DataTable

By : Ziqiu Zang
Date : November 23 2020, 12:01 PM
Hope this helps I have an array "MyArray" and want this array to add to a datatable at Position spcified .The Second last row show where i want to assign the itemarray as at position 3 rows Forward. The same process i did for a single string like datarow.insertAt[i] its working fine but when i am inserting a bunch of array at a specific location then its not working .
code :
string[] MyArray= new string[3];
        MyArray[0] = "Tom";
        MyArray[1] = "Canada";
        MyArray[2] = "+42-54948354-9";             
 DataTable table = new DataTable();
               table.Columns.Add("Name"); 
               table.Columns.Add("Address");
               table.Columns.Add("CellNo");                         
               DataRow drow;
               drow = table.NewRow();
               drow.ItemArray = MyArray;
               table.Rows.Add(drow); 
string[] MyArray = new string[3];
        MyArray[0] = "Tom";
        MyArray[1] = "Canada";
        MyArray[2] = "+42-54948354-9";
        DataTable table = new DataTable();
        table.Columns.Add("Name");
        table.Columns.Add("Address");
        table.Columns.Add("CellNo");
        for (int j = 0; j < 2; j++)
        {
            DataRow drow;
            drow = table.NewRow();
            drow.ItemArray = MyArray;
            table.Rows.InsertAt(drow, j);
        }
string[] MyArray = new string[3];
        MyArray[0] = "Tom";
        MyArray[1] = "Canada";
        MyArray[2] = "+42-54948354-9";
        DataTable table = new DataTable();
        //table.Columns.Add("Name");
        //table.Columns.Add("Address");
        //table.Columns.Add("CellNo");
        DataRow drow;
        drow = table.NewRow();
        for (int j = 0; j < 2; j++)
        {
            table.Columns.Add(j.ToString());
            string s = string.Join(" ", MyArray);
            drow[j.ToString()] = s;
        }
        table.Rows.Add(drow);


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DataRow.ItemArray cannot be modified

DataRow.ItemArray cannot be modified


By : Xiaoxi Han
Date : March 29 2020, 07:55 AM
Any of those help , You can't change through the item array, use the syntax below:
code :
drv.Row[11] = Brushes.Blue;
How to increase the index of existing itemArray inside DataRow

How to increase the index of existing itemArray inside DataRow


By : Mori A
Date : March 29 2020, 07:55 AM
this one helps. Add a new column to the DataTable, then you can specify the value for that new column.
code :
myTable.Columns.Add("someNewColumn", typeof(string));

foreach (DataRow drOutput in myTable.Rows)                    
{
    drOutput[1] = "new string";  // or whatever value you want
}
How to modify datarow itemarray value?

How to modify datarow itemarray value?


By : user3332363
Date : March 29 2020, 07:55 AM
hope this fix your issue I'm looking for best way modify DataRow(ItemArray) , For adding a new row to an DataTable please follow this pattern:
code :
DataTable dt = ...
DataRow newRow = dt.NewRow();
// populate newRow here
dt.Rows.Add(newRow);
Enclosing DataRow ItemArray values in quotes

Enclosing DataRow ItemArray values in quotes


By : Oiy
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I am using a String.Join in order to concatenate and comma separate the values in my DataRow ItemArray. I am looking for an efficient way to double quote any of the array items that are of type String. , You could use a Linq projection to add quotes to string values:
code :
var items = dr.ItemArray.Select (i => i is string ? "\"" + i + "\"" : i);
var line  = string.Join(",",items);
Dim items = dr.ItemArray.Select(Function(i) If(TypeOf i Is String, """" + i + """", i.ToString()))
Dim line = String.Join(",", items)
Datarow ItemArray doesn't work fine with a DataGridViewButtonColumn in first column

Datarow ItemArray doesn't work fine with a DataGridViewButtonColumn in first column


By : matty matty
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I would recommend you seriously considering the Steve's answer. But if you insist, here is the answer to your original question. You need to allocate the appropriate object[], copy the ItemArray into it (using the appropriate offset) and pass that array to the Add method, like this
code :
var values = new object[DGV.Columns.Count];
foreach (DataRow datarow in dtSelect.Rows)
{
    datarow.ItemArray.CopyTo(values, 1);
    DGV.Rows.Add(values);
}
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