Develop Reference

Enter Key on Infragistics Editable Wingrid

I have a screen containing infragistics windows editable grid and winforms button.
On Enter key, the new row gets added in ultrawin grid. Instead i need to fire winforms button event.
Only on tab, it should navigate to next cell and when it reaches last cell, it should navigate to next row.

You can handle UltraGrid's BeforeRowUpdate event and invoke UltraButton's perform click before the new row template is about to be commited.
public partial class Form1 : Form
{
private bool _IsEnterKeyDown = false;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
ultraGrid1.KeyDown += new KeyEventHandler(ultraGrid1_KeyDown);
ultraGrid1.BeforeRowUpdate += new CancelableRowEventHandler(ultraGrid1_BeforeRowUpdate);
ultraGrid1.InitializeLayout += new Infragistics.Win.UltraWinGrid.InitializeLayoutEventHandler(ultraGrid1_InitializeLayout);
ultraGrid1.DataSource = GetDataTable();
}
private void ultraGrid1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyData == Keys.Enter)
{
_IsEnterKeyDown = true;
}
}
private void ultraGrid1_BeforeRowUpdate(object sender, CancelableRowEventArgs e)
{
if (e.Row.IsAddRow && _IsEnterKeyDown)
{
_IsEnterKeyDown = false;
ultraButton1.PerformClick();
}
}
private void ultraButton1_Click(object sender, EventArgs e)
{
MessageBox.Show("Button click event raised!");
}
private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
{
e.Layout.Override.AllowAddNew = AllowAddNew.TemplateOnBottom;
}
private DataTable GetDataTable(int rows = 10)
{
DataTable table = new DataTable("Table1");
table.Columns.Add("Boolean column", typeof(bool));
table.Columns.Add("Integer column", typeof(int));
table.Columns.Add("DateTime column", typeof(DateTime));
table.Columns.Add("String column", typeof(string));
for (int i = 0; i < rows; i++)
{
DataRow row = table.NewRow();
row["Boolean column"] = i % 2 == 0 ? true : false;
row["Integer column"] = i;
row["String column"] = "text";
row["DateTime column"] = DateTime.Today.AddDays(i);
table.Rows.Add(row);
}
return table;
}
}

Why don't listbox assigns to gridview ?

I have filled listBox with data and assigning it to gridview but it doesn't. I verified by setting count of list to variable and it shows 3, perfect but after assigning it to gridview, the count of gridview shows 0. Why ?
protected void btnShowTempFeatures_Click(object sender, EventArgs e)
{
try
{
int count = ListBoxFeatures.Items.Count; //returns 3
grdViewTemporaryFeatures.DataSource = ListBoxFeatures.DataSource;
grdViewTemporaryFeatures.DataBind();
int CountGrid= grdViewTemporaryFeatures.Rows.Count; //return 0
}
}

Solved
protected void btnShowTempFeatures_Click(object sender, EventArgs e)
{
try
{
int count = ListBoxFeatures.Items.Count;
//grdViewTemporaryFeatures.DataSource = ListBoxFeatures.DataSource;
//grdViewTemporaryFeatures.DataBind();
int CountGrid= grdViewTemporaryFeatures.Rows.Count;
ListItemCollection lstTempFeatures = ListBoxFeatures.Items;
DataTable dTempFeatures = new DataTable();
dTempFeatures.Columns.Add("ID");
dTempFeatures.Columns.Add("FeatureName");
foreach (ListItem lstItem in lstTempFeatures)
{
DataRow dr = dTempFeatures.NewRow();
dr["ID"]= lstItem.Value;
dr["FeatureName"] = lstItem.Text;
dTempFeatures.Rows.Add(dr);
}
grdViewTemporaryFeatures.DataSource = dTempFeatures;
grdViewTemporaryFeatures.DataBind();
mdlTemporaryFeatures.Show();
}

Decode html from a cell in datarows in custom webpart

I have the following code to load data from a list in sharepoint website to a custom web part.
private void Data_load()
{
DataTable dt = new DataTable();
string currentName = SPContext.Current.Web.CurrentUser.Name;
SPQuery query = new SPQuery();
query.Query = "<Where><Eq><FieldRef Name='Editor'/><Value Type='Person or Group'>" + currentName + "</Value></Eq></Where>";
using (SPSite site = new SPSite("http://spdev-6/"))
{
using (SPWeb web = site.OpenWeb())
{
SPList lists = web.GetList("Lists/Advertisements");
SPListItemCollection items = lists.GetItems(query);
if (items.Count > 0)
{
//foreach(SPListItem item in items)
//{
// string decodeDescrip = Server.HtmlDecode( item["Details"].ToString());
// item["Details"] = decodeDescrip;
//}
dt = items.GetDataTable();
}
else
lbldata.Text = "No data to show";
GridViewD.DataSource = dt;
GridViewD.DataBind();
HttpContext.Current.Session["Advertisement"] = dt;
}
}
}
Now the issue is i am getting Htmlencode data in one of the columns. Now i have to remove it from grid view. So how it can be removed ?

You can modify the Column in the DataTable before assigning it to the Grid. Look here and here.
protected void GridView1_DataBound(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
for (int i = 0; i < row.Cells.Count - 1; i++)
{
if (row.Cells[i].Text == "0")
{
row.Cells[i].Text = "";
}
}
}
}
You could also change the value on DataBinding as described in this SO Answer.
protected void GridView1_DataBound(object sender, EventArgs e)
{
foreach (GridViewRow row in GridView1.Rows)
{
for (int i = 0; i < row.Cells.Count - 1; i++)
{
if (row.Cells[i].Text == "0")
{
row.Cells[i].Text = "";
}
}
}
}

How to set click Event to all cells in a Row ? Gridview Winforms Devexpress

I have Gridview and I want to set click Event on the all cells in a Row ? How to Complete my Task ??
I tried this code but when i double click on the cell the new Form will come in Back / Behind of current Form. How to Show it on the Front ?
private void gridView2_DoubleClick(object sender, EventArgs e)
{
GridHitInfo celclick = gridView2.CalcHitInfo(gridControl2.PointToClient(Control.MousePosition));
if (celclick.InRow)
{
}
}
Please help me.

Use the GridView.RowCellClick event as follows:
gridControl1.DataSource = new List<Person> {
new Person(){ Name="John Smith"},
new Person(){ Name="Mary Smith"}
};
gridView1.OptionsBehavior.Editable = false; // disable editing
gridView1.RowCellClick += gridView1_RowCellClick;
//...
void gridView1_RowCellClick(object sender, DevExpress.XtraGrid.Views.Grid.RowCellClickEventArgs e) {
if(e.Clicks == 2) { // Double Click
object cellValue = e.CellValue;
//do some stuff
}
}
//...
class Person {
public string Name { get; set; }
}

I have no Visual Studio here to test it but i think it should be something like this:
foreach(GridViewRow row in gridView2.Rows)
{
//Here you need something to get the cells out of row
cell.Click += (s, e) => { myClickEvent(c); };
}
Good luck
EDIT: Try this:
foreach(GridViewRow row in gridView2.Rows)
{
foreach (DataControlFieldCell cell in row.Cells)
{
cell.Click += (s, e) => { myClickEvent(c); };
}
}

Here is the solution:
DataTable dt = new DataTable();
private void B_Click(object sender, EventArgs e)
{
Button bt = (Button)sender;
int productId = (int)bt.Tag;
AddProductDataContext db = new AddProductDataContext();
decimal Quantity;
decimal.TryParse(txtCalculator.Text, out Quantity);
var results = from inv in db.Inventories
where inv.RecId == productId
select new
{
inventoryName = inv.InventoryName,
Quantity,
Total = Quantity * inv.InventoryPrice
};
foreach (var x in results)
{
DataRow newRow = dt.NewRow();
newRow.SetField("inventoryName", x.inventoryName);
newRow.SetField("Quantity", x.Quantity);
newRow.SetField("Total", x.Total);
dt.Rows.Add(newRow);
}
gridControl1.DataSource = dt;
}
private void SaleScreen_Load(object sender, EventArgs e)
{
dt.Columns.Add("inventoryName");
dt.Columns.Add("Quantity");
dt.Columns.Add("Total");
}
I solved the problem in this way. Thanks to everybody for their precious helps.

checking if gridview has a selected item

I have a grideview and 2 buttons. I need to only show the buttons when the gridview has a selected item. My code looks like this:
protected void Page_Load(object sender, EventArgs e)
{
btactivate.Visible = false;
btdeactivate.Visible = false;
//Show Activate and Deactivate Buttons only if an item in the gridview is selected
if (GridView1.SelectedIndex != -1)
{
btactivate.Visible = true;
btdeactivate.Visible = true;
}
else
{
btactivate.Visible = false;
btdeactivate.Visible = false;
}
}
But the problem I have now is that only when I select the second time a item in the gridview the buttons show up. I need to have the the buttons show when I select the first time. I have tried changing the selected index to "-0" but that shows the buttons all the time (even when I dont have something selected). Can anyone please help?

Try this:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataTable dt = new DataTable();
dt.Columns.Add("Col1");
dt.Columns.Add("Col2");
dt.Columns.Add("Col3");
for (int i = 0; i < 20; i++)
{
DataRow dr = dt.NewRow();
dr["Col1"] = string.Format("Row{0}Col1", i + 1);
dr["Col2"] = string.Format("Row{0}Col2", i + 1);
dr["Col3"] = string.Format("Row{0}Col3", i + 1);
dt.Rows.Add(dr);
}
GridView1.DataSource = dt;
GridView1.DataBind();
SetButtonState();
}
}
protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
SetButtonState();
}
private void SetButtonState()
{
btactivate.Visible = GridView1.SelectedIndex > -1;
btdeactivate.Visible = GridView1.SelectedIndex > -1;
}