diff options
Diffstat (limited to 'mcs/class/System.Web/System.Web.UI.WebControls/ButtonColumn.cs')
| -rwxr-xr-x | mcs/class/System.Web/System.Web.UI.WebControls/ButtonColumn.cs | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/mcs/class/System.Web/System.Web.UI.WebControls/ButtonColumn.cs b/mcs/class/System.Web/System.Web.UI.WebControls/ButtonColumn.cs new file mode 100755 index 00000000000..23db52724d6 --- /dev/null +++ b/mcs/class/System.Web/System.Web.UI.WebControls/ButtonColumn.cs @@ -0,0 +1,186 @@ +/**
+ * Namespace: System.Web.UI.WebControls
+ * Class: ButtonColumn
+ *
+ * Author: Gaurav Vaish
+ * Maintainer: gvaish@iitk.ac.in
+ * Contact: <my_scripts2001@yahoo.com>, <gvaish@iitk.ac.in>
+ * Implementation: yes
+ * Status: 100%
+ *
+ * (C) Gaurav Vaish (2002)
+ */
+
+using System;
+using System.ComponentModel;
+using System.Web;
+using System.Web.UI;
+
+namespace System.Web.UI.WebControls
+{
+ public class ButtonColumn : DataGridColumn
+ {
+ private PropertyDescriptor textFieldDescriptor;
+
+ public ButtonColumn(): base()
+ {
+ }
+
+ public override void Initialize()
+ {
+ Initialize();
+ textFieldDescriptor = null;
+ }
+
+ public override void InitializeCell(TableCell cell, int columnIndex, ListItemType itemType)
+ {
+ InitializeCell(cell, columnIndex, itemType);
+ if(Enum.IsDefined(typeof(ListItemType), itemType) && itemType != ListItemType.Footer)
+ {
+ WebControl toDisplay = null;
+ if(ButtonType == ButtonColumnType.PushButton)
+ {
+ Button b = new Button();
+ b.Text = Text;
+ b.CommandName = CommandName;
+ b.CausesValidation = false;
+ toDisplay = b;
+ } else
+ {
+ LinkButton lb = new LinkButton();
+ lb.Text = Text;
+ lb.CommandName = CommandName;
+ lb.CausesValidation = false;
+ toDisplay = lb;
+ }
+ if(DataTextField.Length > 0)
+ {
+ toDisplay.DataBinding += new EventHandler(OnDataBindButtonColumn);
+ }
+ cell.Controls.Add(toDisplay);
+ }
+ }
+
+ private void OnDataBindButtonColumn(object sender, EventArgs e)
+ {
+ Control ctrl = (Control)sender;
+ object item = ((DataGridItem)ctrl.NamingContainer).DataItem;
+ if(textFieldDescriptor == null)
+ {
+ textFieldDescriptor = TypeDescriptor.GetProperties(item).Find(DataTextField, true);
+ if(textFieldDescriptor == null && !DesignMode)
+ throw new HttpException(HttpRuntime.FormatResourceString("Field_Not_Found", DataTextField));
+ }
+ string text;
+ if(textFieldDescriptor != null)
+ {
+ text = FormatDataTextValue(textFieldDescriptor.GetValue(item));
+ } else
+ {
+ text = "Sample_DataBound_Text";
+ }
+ if(ctrl is LinkButton)
+ {
+ ((LinkButton)ctrl).Text = text;
+ }
+ else
+ {
+ ((Button)ctrl).Text = text;
+ }
+ }
+
+ protected virtual string FormatDataTextValue(object dataTextValue)
+ {
+ string retVal = null;
+ if(dataTextValue != null)
+ {
+ if(DataTextFormatString.Length > 0)
+ {
+ retVal = String.Format((string)dataTextValue, DataTextFormatString);
+ }
+ else
+ {
+ retVal = dataTextValue.ToString();
+ }
+ }
+ return retVal;
+ }
+
+ public virtual ButtonColumnType ButtonType
+ {
+ get
+ {
+ object o = ViewState["ButtonType"];
+ if(o!=null)
+ return (ButtonColumnType)o;
+ return ButtonColumnType.LinkButton;
+ }
+ set
+ {
+ if(!System.Enum.IsDefined(typeof(ButtonColumnType), value))
+ throw new ArgumentException();
+ ViewState["ButtonType"] = value;
+ }
+ }
+
+ public virtual string CommandName
+ {
+ get
+ {
+ string cn = (string)ViewState["CommandName"];
+ if(cn!=null)
+ return cn;
+ return String.Empty;
+ }
+ set
+ {
+ ViewState["CommandName"] = value;
+ }
+ }
+
+ public virtual string DataTextField
+ {
+ get
+ {
+ string dtf = (string)ViewState["DataTextField"];
+ if(dtf!=null)
+ return dtf;
+ return String.Empty;
+ }
+ set
+ {
+ ViewState["DataTextField"] = value;
+ }
+ }
+
+ public virtual string DataTextFormatString
+ {
+ get
+ {
+ string dtfs = (string)ViewState["DataTextFormatString"];
+ if(dtfs!=null)
+ return dtfs;
+ return String.Empty;
+ }
+ set
+ {
+ ViewState["DataTextFormatString"] = value;
+ }
+ }
+
+ public virtual string Text
+ {
+ get
+ {
+ string text = (string)ViewState["Text"];
+ if(text!=null)
+ return text;
+ return String.Empty;
+ }
+ set
+ {
+ ViewState["Text"] = value;
+ }
+ }
+ }
+}
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