Alternative for combo box text changed event

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i wrote textchanged event for combo box but its not working , If any alternative for this pls help me.

When combo box text is changed then i can enable the text boxes other wise put it in disable mode. but THis textchanged event is not fire when text is changed. Is it combox box can fire both the events or not.

<asp:ComboBox ID="cmbBatchno" OnSelectedIndexChanged="cmbBatchno_SelectedIndexChanged" OnTextChanged="cmbBatchno_textchange" ItemInsertLocation="Prepend" runat="server" AutoPostBack="True" DropDownStyle="Simple" AutoCompleteMode="Append">

public void cmbBatchno_SelectedIndexChanged(object sender, EventArgs e)
{

if (ViewState["BatchNo"] != null)
{
DataTable dtBatchNoDtls = (DataTable)ViewState["BatchNo"];
for (int i = 0; i < dtBatchNoDtls.Rows.Count; i++)
{
if (dtBatchNoDtls.Rows[i]["BatchNo"].ToString() == cmbBatchno.Text)
{
txtExpdate.Text = dtBatchNoDtls.Rows[i]["ExpDate"].ToString();
txtMRP.Text = dtBatchNoDtls.Rows[i]["MRP"].ToString();
txtRate.Text = dtBatchNoDtls.Rows[i]["Rate"].ToString();
if (txtExpdate.Text != "")
txtPacks.Focus();
else
txtExpdate.Focus();
break;
}
else
{
txtExpdate.Text = string.Empty;
txtMRP.Text = "";
txtRate.Text = "";
}
}
}
}

// this is method is not fired when text is changed.
public void cmbBatchno_textchange(object sender, EventArgs e)
{
if (ViewState["BatchNo"] != null)
{
DataTable dtBatchNoDtls = (DataTable)ViewState["BatchNo"];
for (int i = 0; i < dtBatchNoDtls.Rows.Count; i++)
{
if (cmbBatchno.Text == dtBatchNoDtls.Rows[i]["BatchNo"].ToString())
{
txtExpdate.Enabled = false;
txtMRP.Enabled = false;
break;
}
else
{
txtExpdate.Enabled = true;
txtMRP.Enabled = true;
txtExpdate.Text = string.Empty;
txtMRP.Text = "";
txtRate.Text = "";
}
}

}

}

Posted 20-Oct-13 20:06pm

MANI 14

Updated 20-Oct-13 20:31pm

v2

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Comments

[no name] 21-Oct-13 2:08am

very less information..what you are trying to do..??

MANI 14 21-Oct-13 2:13am

When combo box text is changed then i can enable the text boxes other wise put it in disable mode. but THis textchanged event is not fire..

<asp:ComboBox ID="cmbBatchno" OnSelectedIndexChanged="cmbBatchno_SelectedIndexChanged" OnTextChanged="cmbBatchno_textchange" ItemInsertLocation="Prepend" runat="server" AutoPostBack="True" DropDownStyle="Simple" AutoCompleteMode="Append">

public void cmbBatchno_SelectedIndexChanged(object sender, EventArgs e)
{

if (ViewState["BatchNo"] != null)
{
DataTable dtBatchNoDtls = (DataTable)ViewState["BatchNo"];
for (int i = 0; i < dtBatchNoDtls.Rows.Count; i++)
{
if (dtBatchNoDtls.Rows[i]["BatchNo"].ToString() == cmbBatchno.Text)
{
txtExpdate.Text = dtBatchNoDtls.Rows[i]["ExpDate"].ToString();
txtMRP.Text = dtBatchNoDtls.Rows[i]["MRP"].ToString();
txtRate.Text = dtBatchNoDtls.Rows[i]["Rate"].ToString();
if (txtExpdate.Text != "")
txtPacks.Focus();
else
txtExpdate.Focus();
break;
}
else
{
txtExpdate.Text = string.Empty;
txtMRP.Text = "";
txtRate.Text = "";
}
}
}
}

public void cmbBatchno_textchange(object sender, EventArgs e)
{
if (ViewState["BatchNo"] != null)
{
DataTable dtBatchNoDtls = (DataTable)ViewState["BatchNo"];
for (int i = 0; i < dtBatchNoDtls.Rows.Count; i++)
{
if (cmbBatchno.Text == dtBatchNoDtls.Rows[i]["BatchNo"].ToString())
{
txtExpdate.Enabled = false;
txtMRP.Enabled = false;
break;
}
else
{
txtExpdate.Enabled = true;
txtMRP.Enabled = true;
txtExpdate.Text = string.Empty;
txtMRP.Text = "";
txtRate.Text = "";
}
}

}

}

JoCodes 21-Oct-13 2:26am

Please update the code as part of your question to make it more relevent

JoCodes 21-Oct-13 2:38am

Is your cmbBatchno_SelectedIndexChanged event firing?

MANI 14 21-Oct-13 2:40am

yes cmbBatchno_selectedIndexChanged is firing. If selected index text is changed in combo box then cmbBatchno_TextChanged event is not fire.

MANI 14 21-Oct-13 2:47am

Actually my aim is to, i have to text boxes & Combo box ,combo box is editable. By selecting any item in combo box then i can pull up the data to two text boxes and make it in enable="false" , if any text is changed or edit in combo box then two text boxes are cleared and enable "true". so, how to do this either this way or any alternative pls help.

JoCodes 21-Oct-13 2:49am

Can you show code about where binding the Combobox???

MANI 14 21-Oct-13 2:51am

I can fetch Batchno(combobox)& three text boxes data.

public void GetBatchNoDtls()// Get the batch no.s & details based on selected medicine name
{

MedicineReturnEntity objMedEntity = new MedicineReturnEntity();
objMedEntity.MedId = medId;
IList<medicinereturnentity> MedBtchLst = MRBO.GetBatchNoDtls(objMedEntity);
cmbBatchno.Items.Clear();
if (MedBtchLst.Count > 0)
{
cmbBatchno.DataSource = MedBtchLst;
cmbBatchno.DataTextField = "BatchNo";
cmbBatchno.DataValueField = "BatchNo";
cmbBatchno.DataBind();
cmbBatchno.Items.Insert(0, "select");
DataTable dtBtachNo = new DataTable();// this is the table for storing batchno list to table
DataRow dr;
for (int i = 0; i < MedBtchLst.Count; i++)
{
if (dtBtachNo.Rows.Count == 0)
{
dtBtachNo.Columns.Add("BatchNo", typeof(string));
dtBtachNo.Columns.Add("ExpDate", typeof(string));
dtBtachNo.Columns.Add("MRP", typeof(Decimal));
dtBtachNo.Columns.Add("Rate", typeof(Decimal));
}
dr = dtBtachNo.NewRow();
dr["BatchNo"] = MedBtchLst[i].BatchNo;
dr["ExpDate"] = MedBtchLst[i].ExpDate;
dr["MRP"] = MedBtchLst[i].MRP.ToString();
dr["Rate"] = MedBtchLst[i].Rate.ToString();
dtBtachNo.Rows.Add(dr);
}
ViewState["BatchNo"] = dtBtachNo;

}
else
{
cmbBatchno.Items.Insert(0, "select");
ClearBatchNoDtls();
}
}

JoCodes 21-Oct-13 2:54am

Calling GetBatchNoDtls() in pageload() with a IsPostback check?

MANI 14 21-Oct-13 2:58am

GetBatchNoDtls() is based on Medicine Name. If medicine name is changed then called. I write this method in medicineName_TextChanged Event.

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