Required Field Validator based on condition

Question

Hi All,

I have a scenario , where user has to select any one role from radiobuttonlist to register himself as below

Administrator
Shop floor User
Key User
Others

if he selects Role "Others" from radio-buttonlist, a text box will be appeared to enter the role manually.

Can i have a requiredfieldvalidator for text-box if only user selects role "Others" else if he selects other roles validation is not required. How can i achieve this validation based on the condition

Thanks & Regards

Vishwas

Satyapriya Nayak · Answer

Untitled Page Registration Form Name: Email Role AutoPostBack="True" onselectedindexchanged="rbtRole_SelectedIndexChanged"> Administrator Shop floor User Key User Others onclick="btn_register_Click" /> using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.SqlClient; namespace Required_Field_Validator_based { public partial class _Default : System.Web.UI.Page { string strConnString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; SqlCommand com; protected void btn_register_Click(object sender, EventArgs e) { if (rbtRole.Text == "Others") { SqlConnection con = new SqlConnection(strConnString); com = new SqlCommand(); com.Connection = con; com.CommandType = CommandType.Text; com.CommandText = "insert into login values(@Name,@Email,@role)"; com.Parameters.Clear(); com.Parameters.AddWithValue("@Name", txtName.Text); com.Parameters.AddWithValue("@Email", txtEmail.Text); com.Parameters.AddWithValue("@role", TextBox1.Text); if (con.State == ConnectionState.Closed) con.Open(); com.ExecuteNonQuery(); con.Close(); lblmsg.Text = "Data entered successfully!!!"; clear(); } else { SqlConnection con = new SqlConnection(strConnString); com = new SqlCommand(); com.Connection = con; com.CommandType = CommandType.Text; com.CommandText = "insert into login values(@Name,@Email,@role)"; com.Parameters.Clear(); com.Parameters.AddWithValue("@Name", txtName.Text); com.Parameters.AddWithValue("@Email", txtEmail.Text); com.Parameters.AddWithValue("@role", rbtRole.SelectedValue); if (con.State == ConnectionState.Closed) con.Open(); com.ExecuteNonQuery(); con.Close(); lblmsg.Text = "Data entered successfully!!!"; clear(); } } protected void rbtRole_SelectedIndexChanged(object sender, EventArgs e) { lblmsg.Text = ""; if (rbtRole.SelectedValue == "Others") { panell.Visible = true; TextBox1.CausesValidation = true; } else { panell.Visible = false; TextBox1.CausesValidation = false; } } void clear() { TextBox1.Text = ""; txtEmail.Text = ""; txtName.Text = ""; rbtRole.ClearSelection(); } } }

Dorababu Meka · Answer

I don't know how you design your form but if you are not showing any thing on Administrator or the remaining expect others I would recommend you to design as follows ControlToValidate="txtOthers" ToolTip="Required" Display="Dynamic" ForeColor="Red"> protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { } } protected void rdbLst_SelectedIndexChanged(object sender, EventArgs e) { if (rdbLst.SelectedValue == "Others") { pnl.Visible = true; txtOthers.CausesValidation = true; } else { pnl.Visible = false; txtOthers.CausesValidation = false; } } protected void btnOther_Click(object sender, EventArgs e) { } If you are showing text box on each and every list do this protected void rdbLst_SelectedIndexChanged(object sender, EventArgs e) { if (rdbLst.SelectedValue == "Others") { pnl.Visible = true; rqrdOther.Enabled = true; } else { pnl.Visible = true; rqrdOther.Enabled = false; } }

Dorababu Meka · Answer

Are there any other controls on your form expect RadioButtonList and Text box

Required Field Validator based on condition

Answers (3)