Questions on UI for WinForms Forum

3 answers

194 views

[Solved] Multiple grid view in multiple taps

I want to run separate query in each grid view, these grids is located in deferent taps that was created via dock…

Is that possible in rad grid view for win form?

The information I need to add is retrieved from the same DB

GridView

answered on 23 Mar 2011

2 answers

206 views

[Solved] Add Dynamically RadCheckBoxElement in columns with RadGridView

string[] strArr = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "A", "B", "C", "D", "E", "F", "21", "22", "23", "24", "25", "26", "27", "2", "3", "4", "5", "6", "7", "8", "9", "10", "A", "B", "C", "D", "2", "3", "4", "5", "6", "7", "8", "9", "10", "A", "B", "C", "D", "2", "3", "4", "5", "6", "7", "8", "9", "10", "A", "B", "C", "D", "2", "3", "4", "5", "6", "7", "8", "9", "10" };

private void CreateColumnRow()

{

DataTable data = new DataTable();

data.Columns.Add("1");

data.Columns.Add("2");

data.Columns.Add("3");

data.Columns.Add("4");

data.Columns.Add("5");

for (int i = 0; i < strArr.Length / 5; i++)

{

DataRow dr = data.NewRow();

data.Rows.InsertAt(dr, 0);

}

int intSub = strArr.Length % 5;

if (intSub > 0)

{

DataRow dr = data.NewRow();

data.Rows.InsertAt(dr, 1);

}

radGridView1.DataSource = data;

radGridView1.Columns[0].Width = 100;

radGridView1.Columns[1].Width = 100;

radGridView1.Columns[2].Width = 100;

radGridView1.Columns[3].Width = 100;

radGridView1.Columns[4].Width = 100;

}

private void Form1_Load(object sender, EventArgs e)

{

CreateColumnRow();

loadCheckBox();

}

private void loadCheckBox()

{

int z = 0;

for (int i = 0; i < radGridView1.RowCount; i++)

{

for (int j = 0; j < radGridView1.ColumnCount; j++)

{

radGridView1.Rows[i].IsCurrent = true;

radGridView1.Columns[j].IsCurrent = true;

if (radGridView1.CurrentColumn.Index == j && radGridView1.CurrentRow.Index == i)

{

RadCheckBoxElement check = null;

if (radGridView1.CurrentCell.Children.Count == 0)

{

check = new RadCheckBoxElement();

while (z < strArr.Length)

{

check.Name = "check_" + strArr[z];

check.Text = strArr[z];

radGridView1.CurrentCell.Children.Add(check);

z++;

break;

}

else

{

check = (RadCheckBoxElement)radGridView1.CurrentCell.Children[0];

}

if (z == strArr.Length)

{

break;

}

if (z == strArr.Length)

{

break;

}

radGridView1.Rows[0].IsCurrent = true;

radGridView1.Columns[0].IsCurrent = true;

}

Hello all person in forum!

I send a picture. In picture, i write problem error me. You view my code, you will see code of ( string[] strArr ). If I add ( strArr.lengh < 30 ), this code run OK. Else, it will be problem.

Help me fix it ! Thanks all !

GridView

answered on 23 Mar 2011

3 answers

137 views

[Solved] Background not setting in Q1 2011

Previously I was running the latest 2010 edition of RadControls and had the background color of my TreeViews set to 191 | 219 | 254. However after updating to Q1 2011, not matter what I set the color to it always shows as white. I am not sure if this is a bug or if something changed internally.

Treeview

answered on 22 Mar 2011

3 answers

224 views

TreeView and RelationBindings

Hi to everybody.
I have a problem creating a relation between a RadTreeView and a RadGridView.
I add the:
Me.RadTreeViewModelli.RelationBindings.Add(New RelationBinding("ModelloTessuti", Me.TblDBtblDBTessutiBindingSource))

If I bind the tree to a RadListBox the progam works fine, but with a RadGridView the behaviour seems random. Sometimes when I select the node the grid was refresh sometimes not.

Where I wrong?

Alessio

Treeview

answered on 22 Mar 2011

2 answers

177 views

Assigning DisplayMember to Entity Reference

Hi,

Here is the problem :

I have a binding source (bsCustomers) filled with neccessary data from the database with entity framework.

When i checked the bsCustomers i can see the values are not NULL.

My treeview control`s (rtvCustomers) datasource is bsCustomers and I want to assign rtvCustomers.DisplayMember to Name field which is in tbContacts.

bsCustomer has --> tbContact.
tbContact has --> Code, Name.

So when i say

    
            this.tvCustomers.RootRelationDisplayName = "Customers";  
        
            this.tvCustomers.DisplayMember = "tbContact.Name";  
        
            thisthis.tvCustomers.DataSource = this.bsCustomers;

it doesnt work. (In radgridview such assignment ("tbContact.Name") works properly.)

As a solution in NodeCollectionChange

    
            void Nodes_CollectionChanged(object sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e)  
        
                    {  
        
                        if(e.Action==Telerik.WinControls.Data.NotifyCollectionChangedAction.Add)  
        
                        {  
        
                            if (((RadTreeNode)e.NewItems[0]).Level == 0)  
        
                                return;  
        
                            ((RadTreeNode)e.NewItems[0]).Text = ((Customer)this.bsCustomers[e.NewStartingIndex]).tbContact.Name;  
        
                        }  
        
                    }

and it worked. I filled the treeview with customer Names. But i guess there must be another solution.

So is there any other solution to get treeview filled with Names?

Thanks.

Treeview

answered on 22 Mar 2011

2 answers

128 views

RadTreeview crashed after BeginEdit()

I am using a radtreeview bound to a dataset having multiple levels of hierarchy. See attached file radtreeview.gif.

With AllowEdit=True, I press F2, and edit the text. Then when I hit the enter or escape key, the radtreeview crashes with the an exception "Index -1 does not have a value". See attached file radtreeviewError1.gif

I noticed that this exception is only thrown for the nodes that do not have children. For nodes having children, it works fine.

Also I tried to programmatically edit using a context menu and context menu manager. However the same exception is thrown. My code is pasted below.

-----------------------------------------------------------------------------------------------------------

private void radMenuItemEdit_Click(object sender, EventArgs e)

{

RadTreeNode node = territoryRadTreeView.SelectedNode;

if (node != null)

{

territoryRadTreeView.AllowEdit = true;

node.BeginEdit();

}

-----------------------------------------------------------------------------------------------------------

The version I have is, RadControls for WinForms Q2 2009 SP1.

I am stuck on this issue for the last 2 days and any help will be appreciated.

Thanks

Treeview

answered on 22 Mar 2011

4 answers

158 views

TreeNode contructors

Hi,

I was just wondering if there was any reason there are no overrides when instantiating a RadTreeNode to set BOTH the TEXT value AND Name Value of the node?

So lets say I wanna create a array of RadTreeNode from some data I have, since there just a constructor having the text (and others but still no NAME property) I have to loop through them to set one by one their name value...

Thanks :)

Treeview

answered on 22 Mar 2011

2 answers

155 views

Treeview data binding and menu

Hi!

Working with treeview I encountered some problems:

1. How can i override the default context menu methods (like add and delete)
2. My data structure is a decision tree made out of nodes, where each node has child nodes in an array. Is there an elegant way
to bind my data structure with the tree view?

Treeview

answered on 22 Mar 2011

8 answers

161 views

FindByTextCommand

I have a treeview and after adding a node, I want to select that node. The tree is databound. I am trying to implement the FindByTextCommand, but am having troubles. Can you supply sample code on the implementation.

Thanks

Treeview

answered on 22 Mar 2011

2 answers

167 views

row state won't change after commandcell click

I am using WinForms Q2 2010 SP2 (v2010.2.10.0914)

I have a form with a gridview and a save button outside gridview. The gridview has a commandcell column with dynamically generated command buttons to open another form. When the row gets modified, click the save button will save the grid data into database.

If I modified the data and clicked the commandcell button, without leaving the row, then click the save button outside gridview. It will stop working. It seems that the dataset bounded to the grid donsn't get the row state changed to modified.

My work around is to force the row change by setting Radgridview1.CurrentRow to first or last row in the save button click event. Wonder if this is a known issue. Is there any better solution. My work around will fail if there is only one row in the grid.

Thanks.

GridView

answered on 22 Mar 2011