I've been working with the data controls and it's somewhat cumbersome to use a TemplateField control everytime you want to just have a MultiLine TextBox. So, I decided to extend upon the BoundField control to add MultiLine support. It is actually rather simple to do.
Using the BoundTextBoxField control in the page:
<%@ Register Namespace="CustomBoundField" TagPrefix="custom" %>
<asp:GridView ID="GridView1" runat="server">
<Columns>
<custom:BoundTextBoxField DataField="Text" HeaderText="MultiLine Text" SortExpression="Text" TextMode="MultiLine" Rows="5" Columns="25" Wrap="True" />
</Columns>
</asp:GridView>
Code for the BoundTextBoxField control (~/App_Code/BoundTextBoxField.cs):
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace CustomBoundField
{
/// <summary>
/// Summary description for BoundTextBoxField
/// </summary>
public class BoundTextBoxField : System.Web.UI.WebControls.BoundField
{
public TextBoxMode TextMode
{
get
{
TextBoxMode _tm = TextBoxMode.SingleLine;
if (this.ViewState["TextMode"] != null)
_tm = (TextBoxMode)this.ViewState["TextMode"];
return _tm;
}
set { this.ViewState["TextMode"] = value; }
}
public int Columns
{
get
{
int i = 0;
if (this.ViewState["Columns"] != null)
i = (int)this.ViewState["Columns"];
return i;
}
set { this.ViewState["Columns"] = value; }
}
public int Rows
{
get
{
int i = 0;
if (this.ViewState["Rows"] != null)
i = (int)this.ViewState["Rows"];
return i;
}
set { this.ViewState["Rows"] = value; }
}
public bool Wrap
{
get
{
bool b = true;
if (this.ViewState["Wrap"] != null)
b = (bool)this.ViewState["Wrap"];
return b;
}
set { this.ViewState["Wrap"] = value; }
}
protected override void OnDataBindField(object sender, EventArgs e)
{
base.OnDataBindField(sender, e);
Control c = (Control)sender;
if (c is TextBox)
{
TextBox txt = (TextBox)c;
txt.TextMode = this.TextMode;
txt.Columns = this.Columns;
txt.Rows = this.Rows;
txt.Wrap = this.Wrap;
}
}
}
}
153234aa-4896-47f3-8bb3-83663c56b7ee|9|4.3
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