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want to assign value to gridbound column on combobox selected changed event

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shankar mohan
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shankar mohan asked on 03 Apr 2010, 08:34 AM
i ve griddropdowncolumn and gridbound columns on my radgrid
while selecting the value from dropdown i need to bind values on bound columns n also i want to make some bound columns read only true on the selected index changes event
<telerik:radgrid   ID="RadGrid1" runat="server" Height="300" Visible="true" BackColor="LightBlue" ShowFooter="true" PageSize="20" AllowPaging="True" AllowFilteringByColumn="True" AllowSorting="true" ShowStatusBar="true" GridLines="None" AutoGenerateColumns="False" Skin="Vista"   OnPreRender="RadGrid1_PreRender"  OnItemDataBound ="RadGrid1_ItemDataBound" OnItemCreated="RadGrid1_ItemCreated"  OnNeedDataSource="RadGrid1_NeedDataSource" OnColumnCreated="RadGrid1_ColumnCreated" >                                                                                                                              
                <MasterTableView      CommandItemDisplay="Top" AutoGenerateColumns="false" AllowFilteringByColumn="True" AllowSorting="true"   >                                                                                    
                        <ExpandCollapseColumn><HeaderStyle Width="20px"></HeaderStyle></ExpandCollapseColumn
                        <RowIndicatorColumn><HeaderStyle Width="20px" /></RowIndicatorColumn
                        <ExpandCollapseColumn><HeaderStyle Width="20px" /></ExpandCollapseColumn>                                                                                                 
                        <Columns>                        
               <%-- <telerik:GridDropDownColumn DataField="a" HeaderText="a" UniqueName="a"  />--%> 
               <telerik:GridDropDownColumn DataField="a" HeaderText="a" UniqueName="a" ListTextField="a" ListValueField="a" DataSourceID="SqlDataSource1"/>                 
               <telerik:GridBoundColumn    DataField="b" HeaderText="b" UniqueName="b" />                 
               <telerik:GridBoundColumn    DataField="c" HeaderText="c" UniqueName="c" />                 
               <telerik:GridBoundColumn    DataField="d" HeaderText="d" UniqueName="d" />   


 protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e) 
        { 
            if (e.Item is GridEditFormItem && e.Item.IsInEditMode) 
            { 
                string[] strArray = { "a", "e"}; 
                    GridEditFormItem item = (GridEditFormItem)e.Item; 
                    for (int k = 0; k < 2; k++) 
                    { 
                        GridDropDownListColumnEditor editor = (GridDropDownListColumnEditor)item.EditManager.GetColumnEditor(strArray[k]); 
                        editor.DataSource = (DataSet)Session["sesds"]; 
                        editor.DataTextField = strArray[k]; 
                        editor.DataValueField = strArray[k]; 
                        editor.DataBind(); 
                        editor.ComboBoxControl.AutoPostBack = true
                        editor.ComboBoxControl.SelectedIndexChanged += new RadComboBoxSelectedIndexChangedEventHandler(ComboBoxControl_SelectedIndexChanged); 
                    } 
                     
            } 
             
        } 
 
 
protected void ComboBoxControl_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e) 
        { 
            try 
            { 
                //string ElementID = Convert.ToString((sender as RadComboBox).SelectedItem.Text); 
                RadComboBox rad = (RadComboBox)o;                 
                GridEditableItem editedItem = (GridEditableItem)(o as RadComboBox).NamingContainer; 
                GridEditManager editMan = editedItem.EditManager; 
                foreach (GridColumn column in RadGrid1.MasterTableView.RenderColumns) 
                { 
                if (column is IGridEditableColumn) 
                {                    
                    IGridEditableColumn editableCol = (column as IGridEditableColumn); 
                    if (editableCol.IsEditable) 
                    { 
                        IGridColumnEditor editor = editMan.GetColumnEditor(editableCol);                         
                        if (editor is GridTextColumnEditor) 
                        {                         
                            if ( rad.ID.ToLower() == "rcb_a") 
                            { 
                                if (column.UniqueName == "b") 
                                { 
                                    (editor as GridTextColumnEditor).Text = "Done"
                                } 
                                else if (column.UniqueName == "c") 
                                { 
                                    (editor as GridTextColumnEditor).Text = "ok"
                                } 
                                else if (column.UniqueName == "d") 
                                { 
                                    (editor as GridTextColumnEditor).Text = "ok1"
                                } 
                            } 
                            if (rad.ID.ToLower() == "rcb_e") 
                            { 
                                if (column.UniqueName == "f") 
                                { 
                                    (editor as GridTextColumnEditor).Text = "Done2"
                                } 
                                else if (column.UniqueName == "g") 
                                { 
                                    (editor as GridTextColumnEditor).Text = "ok2"
                                } 
                                else if (column.UniqueName == "h") 
                                { 
                                    (editor as GridTextColumnEditor).Text = "ok3"
                                    (editor as GridTextColumnEditor).Visible = false
                                } 
                            } 
                             
                        } 
                    } 
                 } 
              }             
            } 
            catch 
            { 
 
            } 
        } 


i can able to fetch values to bound columns but couldnt make it as non editable .
dynamically i want to set ,for some scenarios i need to make them as non editable ,n for some it shd be editable for that
only am not setting those properties on source


thanks in advance

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shankar mohan
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answered on 03 Apr 2010, 08:40 AM
have attached screen shots
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Mira
Telerik team
answered on 07 Apr 2010, 04:48 PM
Hello Shankar,

To implement the desired functionality I recommend that you set the ReadOnly property of the textboxes you want to make non-editable to true. You can find them in the Controls collection of the corresponding column editor.

I hope this helps.
 
Sincerely yours,
Mira
the Telerik team

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shankar mohan
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answered on 08 Apr 2010, 08:56 AM
hello mira

if i set the read only property true then  the control disaapears, i wanna make the control as non editable{disabled}

foreach

 

(GridColumn column in RadGrid1.MasterTableView.RenderColumns)

 

{

.........................

if

 

(column.UniqueName == "b")

 

{

(editor

as GridTextColumnEditor).Text = "Done";

 

(column

as GridBoundColumn). readonly=true;

 

}

-----------------
i dont wanna use template controls ,cos i ve 50 columns so it takes much time to load,when i select value from drop down inside the grid it takes around 14 to 15 secs to load,

0
Mira
Telerik team
answered on 12 Apr 2010, 11:28 AM
Hello Shankar,

I suggest that you try using the following code to implement the desired functionality:
((editor as GridTextColumnEditor).Controls[0] as TextBox).ReadOnly = true;

Please let me know whether it helps.

Greetings,
Mira
the Telerik team

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shankar mohan
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answered on 12 Apr 2010, 12:28 PM
hello mira

((editor

as GridTextColumnEditor).Controls[0] as RadTextBox).ReadOnly = true;

 


am getting err when i use the above code

""Specified argument was out of the range of valid values. Parameter name: index""

ok i ll use template controls for this but it takes much time to load,is their any possibilities to bind at client side

need client side event for dropdown template controls{rad:dropdown}   selected index changed event to bind values for template control{rad:textbox}

anyways thaks for the reply,
if possible reply for the above post else no probs
0
Mira
Telerik team
answered on 14 Apr 2010, 04:07 PM
Hello Shankar,

I have followed your scenario and prepared a sample project for you.
You can find it attached to this message.

Please take a look at it and let me know whether you find it useful.

All the best,
Mira
the Telerik team

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shankar mohan
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answered on 15 Apr 2010, 09:37 AM
hello mira

thanks a lot it works fine
i can reduce  much loading time by using this

bye mira




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shankar mohan
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Mira
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