Fill RadGridView dynamically - telerik

Question

I am using RadControls for WinForms 2011 Q3
The datasource for a RadGridView is dynamically generated based on users' input/selection
Everytime when a datasource is generated, I will call SetDatasource2KeyValuesGrid()
What I expect to see is columns generated and values filled in gridview.
However what I see is columns generated but no value filled even though the number of rows in gridview match the number of items in its datasource(keyValuesList)
I must have missed something simple. Please help. thanks
Edit:
I create a DataTable from the list keyValueList, and then assign it to DataSource, then it works
Just wonder if there's a better way. thanks
private void CreateTableSetDatasource(List<FeedKeyValueOneSet>) keyValueList)
{
if(keyValueList==null) return;
var table = new DataTable();
table.Columns.Add("Check");
foreach (var feedKeyValueOneSet in keyValueList)
{
var oneset = feedKeyValueOneSet.KeyValueOneSet;
foreach (var oneKey in oneset)
{
table.Columns.Add(oneKey.key);
}
break;
}
foreach (var feedKeyValueOneSet in keyValueList)
{
var oneset = feedKeyValueOneSet.KeyValueOneSet;
var numOfCol = oneset.Length + 1;
var obj = new object[numOfCol];
obj[0] = "false";
int idx = 1;
foreach (var oneKey in oneset)
{
obj[idx] = oneKey.value;
idx++;
}
table.Rows.Add(obj);
}
radGridKeyValues.DataSource = table;
}
private void SetDatasource2KeyValuesGrid()
{
if (radGridKeyValues.Columns != null) radGridKeyValues.Columns.Clear();
radGridKeyValues.AutoGenerateColumns = false;
radGridKeyValues.EnableFiltering = false;
radGridKeyValues.ShowFilteringRow = false;
radGridKeyValues.ShowHeaderCellButtons = false;
radGridKeyValues.AllowDragToGroup = false;
radGridKeyValues.AllowAddNewRow = false;
radGridKeyValues.EnableGrouping = false;
var keyValueList = (List<FeedKeyValueOneSet>)TimeSeries.FeedValuesCache[m_strFeedName + "_KEYVALUES"];
if(keyValueList==null) return;
GridViewDataColumn checkBoxColumn = new GridViewCheckBoxColumn("columnState", "columnState");
checkBoxColumn.HeaderText = string.Empty;
if (radGridKeyValues.Columns != null) radGridKeyValues.Columns.Add(checkBoxColumn);
foreach (var feedKeyValueOneSet in keyValueList)
{
var oneset = feedKeyValueOneSet.KeyValueOneSet;
foreach (var oneKey in oneset)
{
var textboxCol = new GridViewTextBoxColumn(oneKey.key, oneKey.key);
textboxCol.Width = 150;
textboxCol.ReadOnly = true;
if (radGridKeyValues.Columns != null) radGridKeyValues.Columns.Add(textboxCol);
}
break;
}
radGridKeyValues.DataSource = keyValueList;
}
public class FeedKeyValueOneSet
{
public FeedFieldValues[] KeyValueOneSet;
}
public class FeedFieldValues
{
public string key { get; set; }
public string value { get; set; }
}

Answer 1

I create a DataTable from the list keyValueList, and then assign it to DataSource, then it works
see code in edit to the question